Metal macOS 12.0 Beta 1 to Beta 2 API Differences

MTLAccelerationStructure.h
Modified MTLAccelerationStructureGeometryDescriptor.label
Declaration
From@property (nonatomic, retain) NSString *label
To@property (nonatomic, copy) NSString *label

MTLDevice.h
Added -[MTLDevice newLibraryWithDescriptor:completionHandler:]
Added MTLDevice.supportsPrimitiveMotionBlur
MTLIntersectionFunctionTable.h
Added MTLIntersectionFunctionSignatureInstanceMotion
Added MTLIntersectionFunctionSignaturePrimitiveMotion
Added MTLIntersectionFunctionSignatureExtendedLimits