diff --git a/.github/release-please.yml b/.github/release-please.yml
index c117556ed1..e42bd9d1a5 100644
--- a/.github/release-please.yml
+++ b/.github/release-please.yml
@@ -3,4 +3,13 @@ bumpMinorPreMajor: true
 handleGHRelease: true
 primaryBranch: main
 manifest: true
-extraFiles: ["WORKSPACE", ".cloudbuild/graalvm/cloudbuild.yaml", ".cloudbuild/graalvm/cloudbuild-test-a.yaml", ".cloudbuild/graalvm/cloudbuild-test-b.yaml"]
+extraFiles: ["WORKSPACE", ".cloudbuild/graalvm/cloudbuild.yaml", ".cloudbuild/graalvm/cloudbuild-test-a.yaml", ".cloudbuild/graalvm/cloudbuild-test-b.yaml", ".cloudbuild/library_generation/cloudbuild-library-generation-release.yaml", "generation_config.yaml"]
+branches:
+  - branch: 2.23.x
+    releaseType: java-backport
+    manifest: true
+    handleGHRelease: true
+  - branch: 2.40.x
+    releaseType: java-backport
+    manifest: true
+    handleGHRelease: true
diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index 835aa157d4..4e71b4eabc 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -2,37 +2,79 @@ rebaseMergeAllowed: true
 squashMergeAllowed: true
 mergeCommitAllowed: false
 branchProtectionRules:
-- pattern: main
-  isAdminEnforced: true
-  requiredApprovingReviewCount: 1
-  requiresCodeOwnerReviews: true
-  requiresStrictStatusChecks: false
-  requiredStatusCheckContexts:
-  - build(8) except for gapic-generator-java
-  - build(8) for gapic-generator-java
-  - build (11)
-  - build (17)
-  - cla/google
-  - compatibility
-  - graalvm-presubmit-sdk-platform-java-a (java-graalvm-ci-prod)
-  - graalvm-presubmit-sdk-platform-java-b (java-graalvm-ci-prod)
-  - graalvm-presubmit-sdk-platform-java-a-downstream-kms (java-graalvm-ci-prod)
-  - graalvm-presubmit-sdk-platform-java-b-downstream-kms (java-graalvm-ci-prod)
-  - graalvm-presubmit-sdk-platform-java-a-downstream-kmsinventory (java-graalvm-ci-prod)
-  - graalvm-presubmit-sdk-platform-java-b-downstream-kmsinventory (java-graalvm-ci-prod)
-  - library_generation
-  - library-generation-integration-test (java-hermetic-build-prod)
-  - library-generation-lint-python
-  - library-generation-lint-shell
-  - library-generation-unit-tests
-  - lint
-  - should-run-library-generation-tests
-  - showcase (11)
-  - showcase (17)
+  - pattern: main
+    isAdminEnforced: true
+    requiredApprovingReviewCount: 1
+    requiresCodeOwnerReviews: true
+    requiresStrictStatusChecks: false
+    requiredStatusCheckContexts:
+      - build(8) except for gapic-generator-java
+      - build(8) for gapic-generator-java
+      - build (11)
+      - build (17)
+      - cla/google
+      - compatibility
+      - graalvm-presubmit-sdk-platform-java-a (java-graalvm-ci-prod)
+      - graalvm-presubmit-sdk-platform-java-b (java-graalvm-ci-prod)
+      - graalvm-presubmit-sdk-platform-java-a-downstream-kms (java-graalvm-ci-prod)
+      - graalvm-presubmit-sdk-platform-java-b-downstream-kms (java-graalvm-ci-prod)
+      - graalvm-presubmit-sdk-platform-java-a-downstream-kmsinventory (java-graalvm-ci-prod)
+      - graalvm-presubmit-sdk-platform-java-b-downstream-kmsinventory (java-graalvm-ci-prod)
+      - library_generation
+      - library-generation-integration-test (java-hermetic-build-prod)
+      - library-generation-lint-python
+      - library-generation-lint-shell
+      - library-generation-unit-tests
+      - lint
+      - should-run-library-generation-tests
+      - showcase (11)
+      - showcase (17)
+  - pattern: 2.23.x
+    isAdminEnforced: true
+    requiredApprovingReviewCount: 1
+    requiresCodeOwnerReviews: true
+    requiresStrictStatusChecks: false
+    requiredStatusCheckContexts:
+      - build (8) except for gapic-generator-java
+      - build (8) for gapic-generator-java
+      - build (11)
+      - build (17)
+      - showcase (11)
+      - showcase (17)
+      - compatibility
+      - cla/google
+      - lint
+      - graalvm-presubmit-sdk-platform-java-a (cloud-devrel-kokoro-resources)
+      - graalvm-presubmit-sdk-platform-java-b (cloud-devrel-kokoro-resources)
+      - library-generation-integration-tests
+      - library-generation-lint-shell
+      - library-generation-lint-python
+      - should-run-library-generation-tests
+  - pattern: 2.40.x
+    isAdminEnforced: true
+    requiredApprovingReviewCount: 1
+    requiresCodeOwnerReviews: true
+    requiresStrictStatusChecks: false
+    requiredStatusCheckContexts:
+      - build (8) except for gapic-generator-java
+      - build (8) for gapic-generator-java
+      - build (11)
+      - build (17)
+      - build(21) except self-service clients
+      - showcase (11)
+      - showcase (17)
+      - showcase-native
+      - compatibility
+      - cla/google
+      - lint
+      - graalvm-presubmit-sdk-platform-java-a (cloud-devrel-kokoro-resources)
+      - graalvm-presubmit-sdk-platform-java-b (cloud-devrel-kokoro-resources)
+      - library-generation-integration-tests
+      - library-generation-lint-shell
+      - library-generation-lint-python
+      - should-run-library-generation-tests
 permissionRules:
-- team: yoshi-admins
-  permission: admin
-- team: yoshi-java-admins
-  permission: admin
-- team: yoshi-java
-  permission: push
+  - team: cloud-java-team-teamsync
+    permission: admin
+  - team: cloud-java-bot
+    permission: write