Release Notes: Some Python 1.5.2 compatibility problems that crept into Mailman 2.0.12 have been fixed. Another minor cross site scripting vulnerability has been fixed.
Release Notes: Fixes for two obscured denial-of-service attacks possible against Mailman versions up to and including 2.0.6.
Release Notes: A security fix and some minor bug fixes added. It is strongly recommended that anybody running an earlier 2.0.x version of Mailman should upgrade to 2.0.6