Changelog #11445 [BUGFIX] Allow recomputation for Ember.Helper with arguments. #11317 [BUGFIX] Ensure handleURL called after setURL in visit helper. #11464 [DEPRECATION] Deprecate Ember.immediateObserver. #11476 [DEPRECATION] Deprecate Ember.ArrayController. #11478 [DEPRECATION] Deprecate Ember.RenderBuffer.