CoreText macOS 10.15.6 to 11.0 API Differences

CoreText.h
Added #def kCTVersionNumber11_0
Modified CTGetCoreTextVersion()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedUse -[NSProcessInfo operatingSystemVersion]

CTFont.h
Added CTFontCopyNameForGlyph()
Modified CTFontGetPlatformFont()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedATS is deprecated

Modified CTFontCreateWithPlatformFont()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedATS is deprecated

CTFontDescriptor.h
Added kCTFontVariationAxesAttribute
Added kCTFontOpticalSizeAttribute
CTFontManager.h
Modified CTFontManagerCreateFontRequestRunLoopSource()
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedThis functionality will be removed in a future release

CTFontManagerErrors.h
Added kCTFontManagerErrorUnsupportedScope