diff --git a/VERSION b/VERSION
index d15dfad..9d04cbd 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.6.22
+0.6.23
diff --git a/actions/release-prepare/action.yml b/actions/release-prepare/action.yml
index c805516..1b248ff 100644
--- a/actions/release-prepare/action.yml
+++ b/actions/release-prepare/action.yml
@@ -38,10 +38,6 @@ inputs:
   github-token:
     description: Read-only caller token used for planning and permission lookup.
     required: true
-  app-id:
-    description: Legacy GitHub App id retained for consumer compatibility.
-    required: false
-    default: ''
   app-slug:
     description: Public GitHub App slug used to resolve its client id.
     required: false
diff --git a/tests/test_release_prepare_action.py b/tests/test_release_prepare_action.py
index 2bcb8ed..20d7a6a 100644
--- a/tests/test_release_prepare_action.py
+++ b/tests/test_release_prepare_action.py
@@ -27,7 +27,8 @@ def test_prepare_composes_policy_contracts_and_scoped_mutation(self) -> None:
         self.assertIn("permission-pull-requests: write", content)
         self.assertNotIn("permission-workflows: write", content)
         self.assertIn("client-id: ${{ steps.app-identity.outputs.client-id }}", content)
-        self.assertNotIn("app-id: ${{ inputs.app-id }}", content)
+        self.assertNotIn("\n  app-id:", content)
+        self.assertNotIn("inputs.app-id", content)
         self.assertIn("release:prepare", content)
         self.assertIn("Apply release pull request metadata", content)
         self.assertIn('"assignees"=>[$argv[1]]', content)