We've upgraded lemmy.world to 0.18.1-rc.1 and rolled back that upgrade because of issues.
(If you had posted anything in those 10 minutes between upgrade and rollback, that post is gone. Sorry!)
The main issue we saw is that users can't login anymore. Existing sessions still worked, but new logins failed (from macos, ios and android. From linux and windows it worked)
Also new account creation didn't work.
I'll create an issue for the devs and retry once it's fixed.
Edit Contacted the devs, they tell me to try again with lemmy-ui at version 0.18.0. Will try again, brace for some downtime!
Edit 2 So we upgraded again, and it seemed to work nicely! But then it slowed down so much it was unuseable. There were many locks in the database. People reported many JSON errors. Sorry, we won't be on 0.18.1 any time soon I'm afraid…
I’ve found from hopping around some other instances that have upgraded to 0.18 that it is still pretty buggy. It does seem to be giving more information about the errors, instead of just failing like in 0.17, but spend any time browsing on those instances and you’re bound to be inundated with JSON and query errors. It also seems to get worse the longer you browse.
The UI changes are nice, and I do appreciate not having my feed auto-updating constantly, but I think you’d be making the right choice to hold off on upgrading until they can iron 0.18.1 out all the way. I’m not super knowledgeable about TS and Rust, but as a user it seems that switching from WebSocket created/shined a light on Lemmy’s issues with caching in general.
Or just adding actual error messages instead of ignoring them and throwing up a spinning wheel.