diff --git a/.github/workflows/post-release-merge.yml b/.github/workflows/post-release-merge.yml
index 235d144..84f0d9f 100644
--- a/.github/workflows/post-release-merge.yml
+++ b/.github/workflows/post-release-merge.yml
@@ -14,8 +14,12 @@ jobs:
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           token: ${{ secrets.RELEASE_ACCESS_TOKEN }}
+          fetch-depth: 0
       - name: Install cz
         run: pip install --user -U Commitizen
+      - name: Record previous version
+        run: |
+          echo "FROM_VERSION=$(git describe --tags $(git rev-list --tags --max-count=1))" >> $GITHUB_ENV
       - name: Record release version
         run: |
           echo "RELEASE_VERSION=$(cz version --project)" >> $GITHUB_ENV
@@ -24,7 +28,7 @@ jobs:
           git tag $RELEASE_VERSION
           git push origin $RELEASE_VERSION
       - name: Record changelog for current release
-        run: cz changelog $RELEASE_VERSION --file-name="release.md"
+        run: cz changelog $FROM_VERSION..$RELEASE_VERSION --file-name="release.md"
       - name: Create release
         uses: ncipollo/release-action@v1
         with:
diff --git a/ipay88/consumer-rules.pro b/ipay88/consumer-rules.pro
index e69de29..be827e3 100644
--- a/ipay88/consumer-rules.pro
+++ b/ipay88/consumer-rules.pro
@@ -0,0 +1,2 @@
+# keep class BuildConfig
+-keep public class **.BuildConfig { *; }