| ⇢ | A | ExceptionListener added | 
| ⇢ | D | ExceptionController::getPageTitleAndDescription() added | |
| ⇢ | B | ExceptionController::getStatusCode() added | |
| ⇢ | A | ExceptionListener::duplicateRequest() added | |
| ⇢ | A | ExceptionController::getTranslator() added | |
| A | ↘ | B | ExceptionController::showAction() got worse | 
| A | ↛ | Art::forFlattenException() removed |