UserNotifications iOS 10.3 to 11.0 API Differences

UNNotificationCategory.h
Removed UNNotificationCategoryOptionNone
Added UNNotificationCategoryOptionHiddenPreviewsShowTitle
Added UNNotificationCategoryOptionHiddenPreviewsShowSubtitle
Added UNNotificationCategoryOptionNone
Added UNNotificationCategory.hiddenPreviewsBodyPlaceholder
Added +[UNNotificationCategory categoryWithIdentifier:actions:intentIdentifiers:hiddenPreviewsBodyPlaceholder:options:]
UNNotificationSettings.h
Added UNShowPreviewsSetting
Added UNShowPreviewsSettingAlways
Added UNShowPreviewsSettingWhenAuthenticated
Added UNShowPreviewsSettingNever
Added UNNotificationSettings.showPreviewsSetting
UNUserNotificationCenter.h
Modified -[UNUserNotificationCenterDelegate userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler:]
Declaration
From- (void)userNotificationCenter:(nonnull UNUserNotificationCenter *)center didReceiveNotificationResponse:(nonnull UNNotificationResponse *)response withCompletionHandler:(nonnull void (^)())completionHandler
To- (void)userNotificationCenter:(nonnull UNUserNotificationCenter *)center didReceiveNotificationResponse:(nonnull UNNotificationResponse *)response withCompletionHandler:(nonnull void (^)(void))completionHandler