EventKit iOS 12.4 to 13.0 API Differences

EKError.h

Added EKErrorInvalidInviteReplyCalendar

Added EKErrorNotificationsCollectionFlagNotSet

Added EKErrorSourceMismatch

Added EKErrorNotificationCollectionMismatch

Added EKErrorNotificationSavedWithoutCollection

EKEventStore.h

Added EKEventStore.delegateSources