Perl versions usage stats (with cpanm)

A week ago I added a neat little feature in cpanm 1.6004 to report its perl versions in User-Agent strings (regardless of whether it uses LWP, curl, wget or HTTP::Tiny) in addition to cpanm’s own version. One week later, there seems more than 60% of the users seem to have upgraded (including people who runs curl -L cpanmin.us which always run the latest stable), and we get a pretty interesting num