SceneKit iOS 11.0 Beta 3 to Beta 4 API Differences

SCNAction.h
Modified +[SCNAction sequence:]
Declaration
From+ (nonnull SCNAction *)sequence:(nonnull NSArray<SCNAction *> *)actions
To+ (nullable SCNAction *)sequence:(nonnull NSArray<SCNAction *> *)actions

Modified +[SCNAction group:]
Declaration
From+ (nonnull SCNAction *)group:(nonnull NSArray<SCNAction *> *)actions
To+ (nullable SCNAction *)group:(nonnull NSArray<SCNAction *> *)actions

Modified +[SCNAction repeatAction:count:]
Declaration
From+ (nonnull SCNAction *)repeatAction:(nonnull SCNAction *)action count:(NSUInteger)count
To+ (nullable SCNAction *)repeatAction:(nonnull SCNAction *)action count:(NSUInteger)count

Modified +[SCNAction repeatActionForever:]
Declaration
From+ (nonnull SCNAction *)repeatActionForever:(nonnull SCNAction *)action
To+ (nullable SCNAction *)repeatActionForever:(nonnull SCNAction *)action

SCNCameraController.h
Added SCNCameraController.minimumVerticalAngle
Added SCNCameraController.minimumHorizontalAngle
SCNLight.h
Added SCNLight.sphericalHarmonicsCoefficients
SCNNode.h
Modified +[SCNNode simdLocalUp]
Declaration
From+ (simd_float3)simdLocalUp
To@property (class, nonatomic, readonly) simd_float3 simdLocalUp

Modified +[SCNNode simdLocalRight]
Declaration
From+ (simd_float3)simdLocalRight
To@property (class, nonatomic, readonly) simd_float3 simdLocalRight

Modified +[SCNNode simdLocalFront]
Declaration
From+ (simd_float3)simdLocalFront
To@property (class, nonatomic, readonly) simd_float3 simdLocalFront

Modified -[SCNNode simdWorldUp]
Declaration
From- (simd_float3)simdWorldUp
To@property (nonatomic, readonly) simd_float3 simdWorldUp

Modified -[SCNNode simdWorldRight]
Declaration
From- (simd_float3)simdWorldRight
To@property (nonatomic, readonly) simd_float3 simdWorldRight

Modified -[SCNNode simdWorldFront]
Declaration
From- (simd_float3)simdWorldFront
To@property (nonatomic, readonly) simd_float3 simdWorldFront

SCNSceneSource.h
Added SCNSceneSourceConvertUnitsToMetersKey
Added SCNSceneSourceConvertToYUpKey