Latest version: 0.73 - released on January 18th 2012 - changelog
Latest preview: 0.80-preview2 - released on February 21st 2016 - changelog
Website under construction: For now, you can still use http://pisg.sourceforge.net/
pisg is an IRC channel statics generator written in Perl, it creates statistics from different logfile formats. It was originally written because IRCStats wasn't open source. So here's an open source/GPL'ed version to anyone interested. It's a funny thing for your IRC channel, and it's highly customizeable.
Supported logfile formats: