MediaPlayer Changes for Objective-C MediaPlayer MPNowPlayingInfoLanguageOption.h Added -[MPNowPlayingInfoLanguageOption isAutomaticAudibleLanguageOption] MPPlayableContentDelegate.h Modified -[MPPlayableContentDelegate playableContentManager:didUpdateContext:] Introduction FromiOS 9.0 ToiOS 8.4 MPRemoteCommand.h Added MPChangePlaybackPositionCommand Added MPRemoteCommandHandlerStatusNoActionableNowPlayingItem MPRemoteCommandCenter.h Added MPRemoteCommandCenter.changePlaybackPositionCommand MPRemoteCommandEvent.h Added MPChangePlaybackPositionCommandEvent Added MPChangePlaybackPositionCommandEvent.positionTime