diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b9e5dc6..4515269 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
      - name: Use Node.js
        uses: actions/setup-node@v1
        with:
-         node-version: 14.x
+         node-version: 18.x
      - run: npm i -g markdown-link-check
      - run: markdown-link-check ./README.md
    buildPage:
diff --git a/README.md b/README.md
index 805d6df..cbf64a0 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ What is the Tool Registry API Schema?
 
 This is the home of the schema for the GA4GH Tool Registry API. The GA4GH Tool Registry API is a standard for listing and describing available tools (both stand-alone, Docker-based tools as well as workflows in CWL, WDL, Nextflow, Galaxy or Snakemake) in a given registry. This defines a minimal, common API describing tools that we propose for support by multiple tool/workflow registries like [Dockstore](https://www.dockstore.org/), [BioContainers](https://biocontainers.pro), and [Agora](https://github.com/broadinstitute/agora) for the purposes of exchange, indexing, and searching.
 
-This repo uses the [HubFlow](https://datasift.github.io/gitflow/) scheme which is closely based on [GitFlow](https://nvie.com/posts/a-successful-git-branching-model/). In practice, this means that the master branch contains the last production release of the schema whereas the develop branch contains the latest development changes which will end up in the next production release. 
+This repo uses the [HubFlow](https://github.com/dockstore/hubflow) scheme which is closely based on [GitFlow](https://nvie.com/posts/a-successful-git-branching-model/). In practice, this means that the master branch contains the last production release of the schema whereas the develop branch contains the latest development changes which will end up in the next production release. 
 As of July 2019, this means that the 1.0.0 version is described on master whereas the develop branch contains the 2.0.0-beta.3 version which will evolve into the 2.0.0 production release.
 
 Our current proposal is to start with a read-only API due to potentially different views and approaches to registration/security.
diff --git a/openapi/openapi.yaml b/openapi/openapi.yaml
index 4d492c4..cc0f285 100644
--- a/openapi/openapi.yaml
+++ b/openapi/openapi.yaml
@@ -509,6 +509,10 @@ components:
           type: string
           description: Relative path of the file.  A descriptor's path can be used with
             the GA4GH .../{type}/descriptor/{relative_path} endpoint.
+        dockstore_absolute_path:
+          type: string
+          description: Absolute path of the file.  A descriptor's path can be used with
+            zip from toolsIdVersionsVersionIdTypeFilesGet when format=zip is specified
         file_type:
           type: string
           enum:
@@ -814,6 +818,13 @@ components:
               url: https://raw.githubusercontent.com/ICGC-TCGA-PanCancer/pcawg_delly_workflow/ea2a5db69bd20a42976838790bc29294df3af02b/delly_docker/Delly.cwl
             containerfile:
               url: https://raw.githubusercontent.com/ICGC-TCGA-PanCancer/pcawg_delly_workflow/c83478829802b4d36374870843821abe1b625a71/delly_docker/Dockerfile
+        dockstore_self_url:
+          type: string
+          description: Self URL to this file in the toolsIdVersionsVersionIdTypeDescriptorRelativePathGet endpoint
+        dockstore_absolute_path:
+          type: string
+          description: Absolute path of the file.  A descriptor's path can be used with
+            zip from toolsIdVersionsVersionIdTypeFilesGet when format=zip is specified
     Error:
       type: object
       required: