`use v6;` actually means "use the latest version of Perl 6". I believe you can even do `use v6.b` and other versions to target specific releases of Perl 6, tho

`use v6;` actually means "use the latest version of Perl 6". I believe you can even do `use v6.b` and other versions to target specific releases of Perl 6, though I'm not sure if that's implemented yet. Some text editors also will change to a Perl 6 highlighter if this pragma is present.