Syntax // Before @trigger_error( 'Not setting the "framework.router.utf8" configuration option is deprecated since Symfony 5.1, it will default to "true" in Symfony 6.0.', E_USER_DEPRECATED ); // After trigger_deprecation( 'symfony/framework-bundle', '5.1', 'Not setting the "framework.router.utf8" configuration option is deprecated, it will default to "true" in version 6.0.' );