Deprecate Python 3.8 (#212)

* Deprecate Python 3.8

* Add changelog entry.

.changes/unreleased/Under the Hood-20241021-130749.yaml

@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Remove support and testing for Python 3.8
+time: 2024-10-21T13:07:49.210514-04:00
+custom:
+  Author: peterallenwebb
+  Issue: "212"

.github/workflows/ci_dbt_core_testing.yml

@@ -173,7 +173,7 @@ jobs:
       - name: "generate include"
         id: generate-include
         run: |
-          INCLUDE=('"python-version":"3.8","os":"windows-latest"' '"python-version":"3.8","os":"macos-12"' )
+          INCLUDE=('"python-version":"3.9","os":"windows-latest"' '"python-version":"3.9","os":"macos-12"' )
           INCLUDE_GROUPS="["
           for include in ${INCLUDE[@]}; do
               for group in $(seq 1 ${{ env.PYTHON_INTEGRATION_TEST_WORKERS }}); do
@@ -195,7 +195,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: [3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-20.04]
         split-group: ${{ fromJson(needs.dbt-core-integration-metadata.outputs.split-groups) }}
         include: ${{ fromJson(needs.dbt-core-integration-metadata.outputs.include) }}

.github/workflows/ci_tests.yml

@@ -42,7 +42,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
 
     steps:
       - name: "Check out the repository"

pyproject.toml

@@ -3,7 +3,7 @@ name = "dbt-common"
 dynamic = ["version"]
 description = "The shared common utilities that dbt-core and adapter implementations use"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = "Apache-2.0"
 keywords = []
 authors = [
@@ -19,7 +19,6 @@ classifiers = [
   "Operating System :: Microsoft :: Windows",
   "Operating System :: POSIX :: Linux",
   "Programming Language :: Python",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",