CoreFoundation watchOS 5.2 to 6.0 API Differences

CFBase.h
Added #def CF_WARN_UNUSED_RESULT
CFBundle.h
CFURL.h
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedThe CFURLCopyParameterString function is deprecated. Post deprecation for applications linked with or after the macOS 10.15, and for all iOS, watchOS, and tvOS applications, CFURLCopyParameterString will always return NULL, and the CFURLCopyPath(), CFURLCopyStrictPath(), and CFURLCopyFileSystemPath() functions will return the complete path including the semicolon separator and params component if the URL string contains them.

CFURLEnumerator.h
CFUserNotification.h