add CHANGELOG.md

.github/workflows/pr-build.yml

@@ -10,6 +10,37 @@ permissions:
   contents: read
 
 jobs:
+  changelog-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check CHANGELOG
+        run: |
+          # Check if PR is from pre-release or post-release workflow
+          if [[ "${{ github.event.pull_request.user.login }}" == "aws-application-signals-bot" ]]; then
+            echo "Skipping check: PR from aws-application-signals-bot"
+            exit 0
+          fi
+
+          # Check for Skip Changelog label
+          if echo '${{ toJSON(github.event.pull_request.labels.*.name) }}' | jq -r '.[]' | grep -q "Skip Changelog"; then
+            echo "Skipping check: Skip Changelog label found"
+            exit 0
+          fi
+
+          # Fetch base branch and check for CHANGELOG modifications
+          git fetch origin ${{ github.base_ref }}
+          if git diff --name-only origin/${{ github.base_ref }}..HEAD | grep -q "CHANGELOG.md"; then
+            echo "CHANGELOG.md entry found - check passed"
+            exit 0
+          fi
+
+          echo "It looks like you didn't add an entry to CHANGELOG.md. If this change affects the SDK behavior, please update CHANGELOG.md and link this PR in your entry. If this PR does not need a CHANGELOG entry, you can add the 'Skip Changelog' label to this PR."
+          exit 1
+
   build:
     runs-on: ubuntu-latest
     strategy:

.github/workflows/pre-release-prepare.yml

@@ -94,6 +94,14 @@ jobs:
           git commit -am "Update version to ${VERSION}"
           git push origin "v${VERSION}_release"
 
+      - name: Update CHANGELOG for release
+        if: github.event.inputs.is_patch != 'true'
+        run: |
+          sed -i "s/## Unreleased/## ${VERSION} - $(date +%Y-%m-%d)/" CHANGELOG.md
+          git add CHANGELOG.md
+          git commit -m "Update CHANGELOG for version ${VERSION}"
+          git push origin "v${VERSION}_release"
+
       - name: Create pull request against the release branch
         env:
           GITHUB_TOKEN: ${{ env.BOT_TOKEN_GITHUB_RW_PATOKEN }}
@@ -103,4 +111,23 @@ jobs:
 
           By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice." \
                        --head v${{ github.event.inputs.version }}_release \
-                       --base release/v${MAJOR_MINOR}.x
+                       --base release/v${MAJOR_MINOR}.x
+
+      - name: Create pull request against main for CHANGELOG
+        if: github.event.inputs.is_patch != 'true'
+        env:
+          GITHUB_TOKEN: ${{ env.BOT_TOKEN_GITHUB_RW_PATOKEN }}
+        run: |
+          git checkout -b "v${VERSION}_changelog_main"
+
+          sed -i "s/## Unreleased/## Unreleased\n\n## ${VERSION} - $(date +%Y-%m-%d)/" CHANGELOG.md
+          git add CHANGELOG.md
+          git commit -m "Add ${VERSION} to CHANGELOG"
+          git push origin "v${VERSION}_changelog_main"
+
+          gh pr create --title "Add ${VERSION} to CHANGELOG" \
+                       --body "This PR adds the ${VERSION} release entry to CHANGELOG.md.
+
+          By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice." \
+                       --head v${{ github.event.inputs.version }}_changelog_main \
+                       --base main

CHANGELOG.md

@@ -0,0 +1,7 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+> **Note:** This CHANGELOG was created starting from version 0.12.0. Earlier changes are not documented here.
+
+## Unreleased