SceneKit watchOS 3.2 to 4.0 API Differences

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Header
From	SCNAction.h
To	SceneKitTypes.h

	Declaration
From	- (void)runAction:(nonnull SCNAction *)action completionHandler:(nullable void (^)())block
To	- (void)runAction:(nonnull SCNAction *)action completionHandler:(nullable void (^)(void))block

	Declaration
From	- (void)runAction:(nonnull SCNAction *)action forKey:(nullable NSString *)key completionHandler:(nullable void (^)())block
To	- (void)runAction:(nonnull SCNAction *)action forKey:(nullable NSString *)key completionHandler:(nullable void (^)(void))block

	Declaration
From	- (void)addAnimation:(nonnull CAAnimation *)animation forKey:(nullable NSString *)key
To	- (void)addAnimation:(nonnull id<SCNAnimation>)animation forKey:(nullable NSString *)key

	Availability	Replacement
From	Available	none
To	Deprecated	-removeAnimationForKey:blendOutDuration:

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNAnimationPlayer setPaused:] instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNAnimationPlayer setPaused:] instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNAnimationPlayer setSpeed:] instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNAnimationPlayer paused] instead

	Declaration
From	typedef void (^SCNAnimationEventBlock)(CAAnimation * _Nonnull animation, id _Nonnull animatedObject, BOOL playingBackward)
To	typedef void (^SCNAnimationEventBlock)(id<SCNAnimation> _Nonnull animation, id _Nonnull animatedObject, BOOL playingBackward)

	Declaration
From	@property (nonatomic, copy, nullable) void (^)() willStartPlayback
To	@property (nonatomic, copy, nullable) void (^)(void) willStartPlayback

	Declaration
From	@property (nonatomic, copy, nullable) void (^)() didFinishPlayback
To	@property (nonatomic, copy, nullable) void (^)(void) didFinishPlayback

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use fStop instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNCamera fieldOfView] or -[SCNCamera focalLength] instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNCamera fieldOfView] or -[SCNCamera focalLength] instead

	Availability	Deprecation Message
From	Available	none
To	Deprecated	Use -[SCNCamera fStop] instead with fStop = sensorHeight / aperture.

	Availability	Replacement
From	Available	none
To	Deprecated	-focusDistance

	Availability	Replacement
From	Available	none
To	Deprecated	-focusDistance

	Declaration
From	@property (nonatomic, readonly, nonnull) SCNNode *boneNode
To	@property (nonatomic, readonly, nullable) SCNNode *boneNode

	Declaration
From	- (void)presentScene:(nonnull SCNScene *)scene withTransition:(nonnull SKTransition *)transition incomingPointOfView:(nullable SCNNode *)pointOfView completionHandler:(nullable void (^)())completionHandler
To	- (void)presentScene:(nonnull SCNScene *)scene withTransition:(nonnull SKTransition *)transition incomingPointOfView:(nullable SCNNode *)pointOfView completionHandler:(nullable void (^)(void))completionHandler

	Declaration
From	- (BOOL)prepareObject:(nonnull id)object shouldAbortBlock:(nullable BOOL (^)())block
To	- (BOOL)prepareObject:(nonnull id)object shouldAbortBlock:(nullable BOOL (^)(void))block

	Declaration
From	@property (nonatomic, retain, nullable) SCNNode *skeleton
To	@property (nonatomic, weak, nullable) SCNNode *skeleton