Howdy!
The v2023.9 builds are currently available via the :prealpha tag (so change :beta to :prealpha in your unraid template).
Backups are never a bad thing to have — but know that you’ll need to rebuild your library to downgrade back to v2.1.
Please post here or in the PhotoStructure discord if you see anything odd or buggy!
Also, I’m away from my desk for the next couple days, so my responses will be a bit delayed.