Contacts macOS 10.14 to 10.15 API Differences

CNChangeHistoryEvent.h
CNChangeHistoryFetchRequest.h
CNContactFetchRequest.h
Superclass
FromNSObject
ToCNFetchRequest

CNContactRelation.h
CNContactStore.h
CNError.h
CNFetchRequest.h
CNFetchResult.h
CNLabeledValue.h