Bug Fix: Version update notification persisting after upgrading to the notified version (e.g. "v0.20.2 available" shown while already running v0.20.2). Root cause: check_for_version_update.delay() was called from AppConfig.ready(), which fires inside Celery prefork pool subprocesses before the broker connection is established, causing the dispatch to fail silently with no log output. Fixed by moving the startup dispatch to the worker_ready signal in celery.py (consistent with the existing recover_recordings_on_startup pattern), and deleting the stale version-{current_version} notification at the top of the production check path so it is cleared even when GitHub is unreachable. A WebSocket update is sent immediately on deletion so the frontend badge clears without waiting for the API response.

core/apps.py

@@ -31,7 +31,6 @@ class CoreConfig(AppConfig):
             return
 
         self._sync_developer_notifications()
-        self._check_version_update()
 
     def _sync_developer_notifications(self):
         """Sync developer notifications from JSON file to database."""
@@ -47,14 +46,3 @@ class CoreConfig(AppConfig):
         except Exception as e:
             logger.warning(f"Failed to sync developer notifications on startup: {e}")
 
-    def _check_version_update(self):
-        """Check for version updates on startup."""
-        import logging
-
-        logger = logging.getLogger(__name__)
-
-        try:
-            from core.tasks import check_for_version_update
-            check_for_version_update.delay()
-        except Exception as e:
-            logger.warning(f"Failed to check for version updates on startup: {e}")

core/tasks.py

@@ -789,6 +789,7 @@ def check_for_version_update():
     try:
         is_dev_build = __timestamp__ is not None
         DISPATCHARR_HEADERS = {'User-Agent': f'Dispatcharr/{__version__}'}
+
         if is_dev_build:
             # Check Docker Hub for newer dev builds
             docker_hub_url = "https://hub.docker.com/v2/repositories/dispatcharr/dispatcharr/tags/dev"
@@ -878,7 +879,21 @@ def check_for_version_update():
                         }
                     )
         else:
-            # Production build - check GitHub for stable releases
+            # Production build - check GitHub for stable releases.
+            # Delete any stale notification for the currently running version upfront;
+            # a "vX is available" notification is meaningless once the user is already on vX.
+            # Notify the frontend immediately so the badge clears without waiting for the API call.
+            deleted_count = SystemNotification.objects.filter(
+                notification_key=f"version-{__version__}",
+                notification_type='version_update',
+            ).delete()[0]
+            if deleted_count > 0:
+                send_websocket_update(
+                    'updates',
+                    'update',
+                    {'success': True, 'type': 'notifications_cleared', 'count': deleted_count}
+                )
+
             github_api_url = "https://api.github.com/repos/Dispatcharr/Dispatcharr/releases/latest"
             headers = {"Accept": "application/vnd.github.v3+json", **DISPATCHARR_HEADERS}
             response = requests.get(