| 
                                                                        Good job, 1 issue
                            was                            fixed.
                                                             | |||
| 2 added classes/operations | |||
|   | A | Mediator::hasSubscribers() added | |
|   | A | Mediator::isSubscribed() added | |
| A | ↘ | B | Mediator got worse | 
| Head |  | 
|---|---|
| Base |  |