Environment: iOS 16 beta 2, beta 3. iPhone 11 Pro, 12 mini Steps to reproduce: Subscribe to Photo Library changes via PHPhotoLibraryChangeObserver, put some logs to track inserted/deleted objects: func photoLibraryDidChange(_ changeInstance: PHChange) { if let changeDetails = changes.changeDetails(for: allPhotosFetchResult) { for insertion in changeDetails.insertedObjects { print("🥶 INSERTED: ", insertion.localIdentifier) } for deletion in changeDetails.removedObjects { print("🥶 DELETED: ", deletion.localIdentifier) } } } Save a photo to camera roll with PHAssetCreationRequest Go to the Photo Library, delete the newly saved photo Come back to the app and watch the logs: 🥶 INSERTED:  903933C3-7B83-4212-8DF1-37C2AD3A923D/L0/001 🥶 DELETED:  39F673E7-C5AC-422C-8BAA-1BF865120BBF/L0/001 Expected result: localIdentifier of the saved and deleted asset is the same string in both logs. In fact: It's different. So it appears that either the localIdentifier of an asset gets changed after successful saving, or it's a bug in the Photos framework in iOS 16. I've checked - in iOS 15 it works fine (IDs in logs match).