I've rolled out new versions of Webmin and Usermin for all repositories. It's been a while since we've pushed updates of Webmin and Usermin to the Virtualmin repo (because of some minor performance bugs introduced by new features), so there are a few releases worth of changes (though the most significant changes are in the included theme updates):
Version 1.920 (6th July 2019)
Version 1.910 (9th May 2019)
As always, let us know if you run into any problems. Pro users can open a ticket in the issue tracker, or GPL users can start a new forum topic (though bugs are always welcome in the issue tracker here or at github).