Unfortunately, this module fails for some simple cases:

    use Sort::Versions;
    print join(" ",sort versions qw(1.2a 1.10a)),"\n";
[download]

Note that this matches the behavior described in the module's documentation, but I think it isn't what most people would want.

I've been considering patching the module to make it more useful...

[Mostly a repeat of Re: Re: Sorting on Section Numbers (to save clicks).]