$VERSION Archeology has info on $VERSION styles commonly used, and one comment remarking on version.pm being hard to use.
There was a p5p thread: UNIVERSAL::VERSION and version.pm, that discusses various version.pm oddities.
I'd be inclined to stick to old school $VERSIONs, simply because there's more useful things to work on.
In reply to Re: Benefits/Disadvantages of version Object/version.pm
by bsb
in thread Benefits/Disadvantages of version Object/version.pm
by jawnsy
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