| ⇢ | A | ErrorPageController added | |
| ⇢ | A | RedirectorPageController added | |
| A | ↛ | ErrorPage_Controller removed | |
| A | ↛ | RedirectorPage_Controller removed |
| ⇢ | A | RedirectorPageController::Content() added | |
| ⇢ | A | ErrorPageController::handleRequest() added | |
| ⇢ | A | RedirectorPageController::init() added | |
| A | ↘ | B | SiteTree::getControllerName() got worse |
| A | ↛ | RedirectorPage_Controller::Content() removed | |
| A | ↛ | ErrorPage_Controller::handleRequest() removed | |
| A | ↛ | RedirectorPage_Controller::init() removed |