UserNotifications iOS 12.4 to 13.0 API Differences

UNNotificationCategory.h

Added UNNotificationCategoryOptionAllowAnnouncement

UNNotificationContent.h

Added UNNotificationContent.targetContentIdentifier

Added UNMutableNotificationContent.targetContentIdentifier

UNNotificationSettings.h

Added UNNotificationSettings.announcementSetting

UNUserNotificationCenter.h

Added UNAuthorizationOptionAnnouncement