I've just released Mailman 2.0 beta 4. This is an important bug fix release that fixes problems with bin/newlist, the bundled pipermail archiving, the new admindb forward feature, and a few other problems. If you are running 2.0beta3, I strongly urge you to upgrade.
As usual you can get the tarball from SourceForge
or (soon) ftp.gnu.org
Due to the ongoing negotiations with CNRI, this release is /not/ available from ftp.python.org. :(
For those of you on the cutting edge, I'd like to get as much feedback as possible over the next two weeks. I still plan on releasing the final version on the Friday before the O'Reilly Open Source conference (which, contrary to previous plans, I will not be attending).
It's possible I'll make one more beta release before then.