| ⇢ | A | Event::addUser() added | |
| ⇢ | A | Event::__construct() added | |
| ⇢ | A | Event::removeUser() added | |
| ⇢ | A | Survey::getReviewed() added | |
| ⇢ | A | User::getEnabled() added | |
| ⇢ | A | User::removeSurvey() added | |
| B | ↘ | C | CalendarController::newEventAction() got worse | 
| A | ↛ | Event::setUser() removed |