I copied it from the new templates. Its in the templates so you don't need to remember if its $version or $needsop or whatever. It is 2.0.0 as that is always gonna pass. Its not a comment in the templates as then you'd always forget to remove the comment. Its not 2.6.0 by default because then you'd never bother testing it against 2.4...

This has a performance penalty of extra roundtrip on your localhost, so if it would be added to all 600 testcases we have at this moment.. it would cost extra ~0.05 ms for the full run