GameKit iOS 12.4 to 13.0 API Differences

GKAchievementViewController.h

Modified GKAchievementViewController.achievementDelegate

	Declaration
From	@property (nonatomic, assign) id<GKAchievementViewControllerDelegate> achievementDelegate
To	@property (nonatomic, weak) id<GKAchievementViewControllerDelegate> achievementDelegate

GKDefines.h

Added #def GK_API_DEPRECATED

GKError.h

Added GKErrorRestrictedToAutomatch

Added GKErrorAPINotAvailable

GKGameCenterViewController.h

Modified GKGameCenterViewController.gameCenterDelegate

	Declaration
From	@property (nonatomic, assign) id<GKGameCenterControllerDelegate> gameCenterDelegate
To	@property (nonatomic, weak) id<GKGameCenterControllerDelegate> gameCenterDelegate

Modified GKGameCenterViewController.leaderboardIdentifier

	Declaration
From	@property (nonatomic, retain) NSString *leaderboardIdentifier
To	@property (nonatomic, strong) NSString *leaderboardIdentifier

Modified GKGameCenterViewController.leaderboardCategory

	Declaration
From	@property (nonatomic, retain) NSString *leaderboardCategory
To	@property (nonatomic, strong) NSString *leaderboardCategory

GKLeaderboardViewController.h

Modified GKLeaderboardViewController.leaderboardDelegate

	Declaration
From	@property (nonatomic, assign) id<GKLeaderboardViewControllerDelegate> leaderboardDelegate
To	@property (nonatomic, weak) id<GKLeaderboardViewControllerDelegate> leaderboardDelegate

GKLocalPlayer.h

Added GKLocalPlayer.local

Added GKLocalPlayer.multiplayerGamingRestricted

Added -[GKLocalPlayer loadChallengableFriendsWithCompletionHandler:]

GKMatchmaker.h

Added GKMatchRequest.restrictToAutomatch

GKMatchmakerViewController.h

Modified GKMatchmakerViewController.matchRequest

	Declaration
From	@property (nonatomic, readonly, retain) GKMatchRequest *matchRequest
To	@property (nonatomic, readonly, strong) GKMatchRequest *matchRequest

GKPlayer.h

Added -[GKPlayer scopedIDsArePersistent]

Modified GKPlayer.displayName

	Declaration
From	@property (nonatomic, readonly) NSString *displayName
To	@property (nonatomic, readonly) NSString *displayName

Modified GKPlayer.alias

	Declaration
From	@property (nonatomic, readonly, copy) NSString *alias
To	@property (nonatomic, readonly, copy) NSString *alias

Modified GKPlayer.playerID

	Declaration	Availability	Deprecation Message
From	@property (nonatomic, readonly, retain) NSString *playerID	Available	none
To	@property (nonatomic, readonly, retain) NSString *playerID	Deprecated	use the teamPlayerID property to identify a player

GKTurnBasedMatchmakerViewController.h

Modified GKTurnBasedMatchmakerViewController.turnBasedMatchmakerDelegate

	Declaration
From	@property (nonatomic, readwrite, assign) id<GKTurnBasedMatchmakerViewControllerDelegate> turnBasedMatchmakerDelegate
To	@property (nonatomic, readwrite, weak) id<GKTurnBasedMatchmakerViewControllerDelegate> turnBasedMatchmakerDelegate