| ⇢ | A | DefaultBoardMiddleware added |
| ⇢ | A | Application::registerUserGroupHooks() added | |
| ⇢ | A | DefaultBoardMiddleware::beforeController() added | |
| ⇢ | A | Application::register() added | |
| ⇢ | A | DefaultBoardMiddleware::__construct() added | |
| B | ↗ | A | Application::__construct() improved |