EventKit watchOS 7.4 to 8.0 API Differences

EKError.h
Added EKErrorReminderAlarmContainsEmailOrUrl
EKParticipant.h
Added ABRecordRef
Added ABAddressBookRef
EKVirtualConferenceDescriptor.h
Added EKVirtualConferenceRoomTypeIdentifier
Added EKVirtualConferenceRoomTypeDescriptor
Added -[EKVirtualConferenceRoomTypeDescriptor initWithTitle:identifier:]
Added EKVirtualConferenceRoomTypeDescriptor.title
Added EKVirtualConferenceRoomTypeDescriptor.identifier
Added EKVirtualConferenceURLDescriptor
Added -[EKVirtualConferenceURLDescriptor initWithTitle:URL:]
Added EKVirtualConferenceURLDescriptor.title
Added EKVirtualConferenceURLDescriptor.URL
Added EKVirtualConferenceDescriptor
Added -[EKVirtualConferenceDescriptor initWithTitle:URLDescriptors:conferenceDetails:]
Added EKVirtualConferenceDescriptor.title
Added EKVirtualConferenceDescriptor.URLDescriptors
Added EKVirtualConferenceDescriptor.conferenceDetails
EKVirtualConferenceProvider.h
Added EKVirtualConferenceProvider
Added -[EKVirtualConferenceProvider fetchAvailableRoomTypesWithCompletionHandler:]
Added -[EKVirtualConferenceProvider fetchVirtualConferenceForIdentifier:completionHandler:]