CoreText iOS 11.4 to 12.0 API Differences

CoreText.h
CTFontCollection.h
CTFramesetter.h
CTTypesetter.h
Declaration
FromCTTypesetterRef _Nonnull CTTypesetterCreateWithAttributedStringAndOptions(CFAttributedStringRef _Nonnull string, CFDictionaryRef _Nullable options)
ToCTTypesetterRef _Nullable CTTypesetterCreateWithAttributedStringAndOptions(CFAttributedStringRef _Nonnull string, CFDictionaryRef _Nullable options)