in reply to $VERSION in module files

See my reply in the thread What basic things should I know about versioning modules? that a 1.23 style versioning should provide maximum compatibility, specified in a format of our $VERSION = "1.23";. Of course, TIMTOWTDI, and you'll see some modules use interesting versioning schemes and some modules use code to determine $VERSION like parsing it out of a VCS $Revision$ string. See the documentation in ExtUtils::MakeMaker's VERSION_FROM and ExtUtils::MM_Unix's parse_version, but note that those are probably not the only tools that parse version strings out of module files, so I'd really only recommend our $VERSION = string;.