I'll bite. Judging by your one sample, it looks like the version information is surrounded by << and >>, and that the attribute you are looking for is the BOOTR version.

Your question implies that each version number will start with V, but we don't know what else it will contain, only that it will end with >>, or possibly a semi-colon to start another version attribute. Given that all that is true, this RE should work:

/<<.*BOOTR: V(.+)?(?:;|>>)/;
print $1;
[download]

This will explicitly look for the BOOTR attribute, and stop at the first ; or >>.