I'm running Mailman 2.1.16rc2 on Ubuntu 12.04. That's the most recent version available via apt-get install. Mailman recently released version 2.1.18 with some new features to deal with fallout from Yahoo's new DMARC policy for email.
Is there any way to install this latest version via apt-get? I'd like to continue using apt-get updates to find new versions of Mailman in the future, but the version I want is not currently available in the standard repositories.