I've rolled out Virtualmin virtual-server module version 5.02 for all repos, and it's likely showing up in the available updates in your Virtualmin dashboard. The focus of this release is Ubuntu 16.04 LTS support, but it has some other updates and bugfixes. We're still calling Ubuntu 16.04 LTS support beta status for another couple days, as we work out the issues we didn't catch during testing (after all, 16.04 was just released a couple days ago).
Changes since 5.01:
As always, file tickets for any bugs you find.
We're particularly interested in hearing about issues with new Ubuntu 16.04 installations (but also, don't expect it to be production ready just yet, there will be bugs). Also, Upgrading from older Ubuntu releases has not yet been documented or tried, so I wouldn't recommend attempting a production system upgrade until Eric has had a chance to work through a few upgrades and get it documented.