| ⇢ | A | EventFormType added | |
| A | ↘ | B | EventService got worse |
| ⇢ | A | Event::getPlace() added | |
| ⇢ | A | Event::setPlace() added | |
| ⇢ | A | EventFormType::getEntityClassName() added | |
| A | ↘ | B | EventService::createEventByForm() got worse |
| A | ↛ | EventController::createEventCreationForm() removed |