Hi Rob. I encountered a possible hiccup with the deployment story
Bug 753306 (https://bugs.launchpad.net/launchpad/+bug/753306) shows comments that indicate it has caused Tom to remove Mailman from no-downtime deploys. Presumably, that means that, since April, Mailman has been updated only for full "downtime" deploys . Our db deploys (https://wiki.canonical.com/Launchpad/PolicyandProcess/ProductionChange) will mean that we will no longer even have that trigger.
I suppose, until that bug is fixed, we will need some explicit policy for deploying Mailman?