| ⇢ | A | UserNotifications added | |
| A | ↛ | MarkUserNotifications removed |
| ⇢ | A | UserNotifications::deleteNotification() added | |
| ⇢ | A | UserNotifications::markNotificationRead() added | |
| A | ↛ | MarkUserNotifications::markNotificationRead() removed | |
| A | ↛ | MarkUserNotifications::deleteNotification() removed |