GameKit tvOS 11.4 to 12.0 API Differences

GKCloudPlayer.h

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated. Use GKPlayer for both real-time and turn-based matchmaking APIs.

GKFriendRequestComposeViewController.h

Removed GKFriendRequestComposeViewController.composeViewDelegate

Removed GKFriendRequestComposeViewControllerDelegate

GKGameSession.h

Modified GKGameSession

	Availability	Deprecation Message
From	Available	none
To	Deprecated	For real-time matches, use GKMatchmakerViewController. For turn-based matches, use GKTurnBasedMatchmakerViewController.

GKGameSessionError.h

Modified GKGameSessionErrorDomain

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorUnknown

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorNotAuthenticated

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSessionConflict

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSessionNotShared

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorConnectionCancelledByUser

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorConnectionFailed

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSessionHasMaxConnectedPlayers

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSendDataNotConnected

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSendDataNoRecipients

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSendDataNotReachable

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorSendRateLimitReached

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorBadContainer

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorCloudQuotaExceeded

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorNetworkFailure

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorCloudDriveDisabled

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

Modified GKGameSessionErrorInvalidSession

	Availability	Deprecation Message
From	Available	none
To	Deprecated	GKGameSession is deprecated, use real-time and turn-based matchmaking APIs instead.

GKGameSessionEventListener.h

Modified GKGameSessionEventListener

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use GKLocalPlayerListener for multiplayer event notifications.

Modified +[GKGameSession addEventListener:]

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use GKLocalPlayer's registerListener: to register for GKLocalPlayerListener event notifications.

Modified +[GKGameSession removeEventListener:]

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use GKLocalPlayer's unregisterListener: or unregisterAllListeners to unregister from GKLocalPlayerListener event notifications.

GKGameSessionEventListenerPrivate.h

Removed +[GKGameSession postSession:didAddPlayer:]

Removed +[GKGameSession postSession:didRemovePlayer:]

Removed +[GKGameSession postSession:player:didChangeConnectionState:]

Removed +[GKGameSession postSession:player:didSaveData:]

Removed +[GKGameSession postSession:didReceiveData:fromPlayer:]

Removed +[GKGameSession postSession:didReceiveMessage:withData:fromPlayer:]

GKGameSessionSharingViewController.h

Modified GKGameSessionSharingViewController

	Availability	Deprecation Message
From	Available	none
To	Deprecated	For real-time matches, use GKMatchmakerViewController. For turn-based matches, use GKTurnBasedMatchmakerViewController.

Modified GKGameSessionSharingViewControllerDelegate

	Availability	Deprecation Message
From	Available	none
To	Deprecated	For real-time matches, use GKMatchmakerViewControllerDelegate to receive notifications from the GKMatchmakerViewController. For turn-based matches, use GKTurnBasedMatchmakerViewControllerDelegate and GKLocalPlayerListener to receive notifications from the GKTurnBasedMatchmakerViewController.

GKLocalPlayer.h

Modified +[GKLocalPlayer localPlayer]

	Declaration
From	+ (nonnull GKLocalPlayer *)localPlayer
To	@property (class, readonly, nonnull) GKLocalPlayer *localPlayer

GKPublicProtocols.h

Removed GKSessionDelegate

Removed -[GKSessionDelegate session:peer:didChangeState:]

Removed -[GKSessionDelegate session:didReceiveConnectionRequestFromPeer:]

Removed -[GKSessionDelegate session:connectionWithPeerFailed:withError:]

Removed -[GKSessionDelegate session:didFailWithError:]

Removed GKVoiceChatClient

Removed -[GKVoiceChatClient voiceChatService:sendData:toParticipantID:]

Removed -[GKVoiceChatClient participantID]

Removed -[GKVoiceChatClient voiceChatService:sendRealTimeData:toParticipantID:]

Removed -[GKVoiceChatClient voiceChatService:didStartWithParticipantID:]

Removed -[GKVoiceChatClient voiceChatService:didNotStartWithParticipantID:error:]

Removed -[GKVoiceChatClient voiceChatService:didStopWithParticipantID:error:]

Removed -[GKVoiceChatClient voiceChatService:didReceiveInvitationFromParticipantID:callID:]