Upgrade from 20 to 21

Update from 20.0.8 to 21. Everything went fine, EXCEPT I lost all user talk’s in spreed (Talk) app.

And some apps not supported in 21 release…
add a bug to bug list

This just hit me as well, using postgresql. Would appreciate it if anyone has a fix.
NC 20.9 → 21.0.1

Hello, I’m also trying to update with the information you reported on the site, but I also have the same problem, I’m going from 20.0.9 to 21.0.0, but every time I lose all data and applications, I also tried to go first to 20.0.10 and then to 21.0.0, but any update I try to install after 20.0.9 loses my data …