Yeah I’ve been busy and my server has been on autopilot. Thank you for the link!
Wow, that is quite a lot to read through. My first thought was “Wait, if this was an issue with a beta release how did I get affected?!” but then I saw this:

I missed that memo. I guess I need to turn off auto-updates, wait for the stable release to catch up to me, then change that tag to :stable.
Anyway, if I’m understanding correctly then this script from ChuckPa is what I need to run - and it’ll probably take a long time. I’ll wait for my users to log off tonight and give it a shot.