| ⇢ | A | BaseRequest added | |
| ⇢ | A | RegisterUserRequest added | |
| ⇢ | A | RegisterService added |
| ⇢ | A | BaseRequest::getErrorResponse() added | |
| ⇢ | A | RegisterUserRequest::rules() added | |
| ⇢ | A | RegisterService::__construct() added | |
| ⇢ | A | RegisterService::registerByRequest() added | |
| ⇢ | A | RegisterService::createUserInstance() added | |
| B | ↗ | A | UserController::postUsers() improved |