Latest versions of MW have `w/maintenance/Version.php`, older ones had `w/maintenance/version.php` and even older had neither, this role should: 1. Check `w/maintenance/Version.php` and it it doesn't exist go to 2. 2. Check `w/maintenance/version.php` and it it doesn't exist go to 3. 3. Download a copy of `version.php`, the URL in the role for this currently needs updating.