Objective-C iOS 12.4 to 13.0 API Differences

message.h
Declaration
Fromid objc_msgSend(id self, SEL op, ...)
Tovoid objc_msgSend(void)

Declaration
Fromid objc_msgSendSuper(struct objc_super *super, SEL op, ...)
Tovoid objc_msgSendSuper(void)

Declaration
Fromid method_invoke(id receiver, Method m, ...)
Tovoid method_invoke(void)

objc-api.h
Added #def OBJC_OSX_DEPRECATED_OTHERS_UNAVAILABLE
Added #def OBJC_OSX_AVAILABLE_OTHERS_UNAVAILABLE
objc.h
Modified IMP
Declaration
Fromtypedef id (*IMP)(id, SEL, ...)
Totypedef void (*IMP)()

runtime.h