Photos macOS 10.15.6 to 11.0 API Differences

PHCollectionListChangeRequest.h
Added +[PHCollectionListChangeRequest changeRequestForTopLevelCollectionListUserCollections:]
PHError.h
Added PHPhotosError
Added PHPhotosErrorNetworkAccessRequired
PHPhotoLibrary.h
Added PHAuthorizationStatusLimited
Added PHAccessLevel
Added PHAccessLevelAddOnly
Added PHAccessLevelReadWrite
Added +[PHPhotoLibrary authorizationStatusForAccessLevel:]
Added +[PHPhotoLibrary requestAuthorizationForAccessLevel:handler:]
Modified +[PHPhotoLibrary authorizationStatus]
AvailabilityReplacement
FromAvailablenone
ToDeprecated+authorizationStatusForAccessLevel:

Modified +[PHPhotoLibrary requestAuthorization:]
AvailabilityReplacement
FromAvailablenone
ToDeprecated+requestAuthorizationForAccessLevel:handler: