if I understand right, I can move all my data, but not the access rights, users and groups.

So I have to re-create all users and groups under the new LibreSource version? And set the ACL's for each single resource?

This is pretty inconvenient! I got a couple of dozent users and groups, and a few hundred resources I need to set the ACL's for.

I hope this procedure is not necessary every time I am going to upgrade. It might take a few days to fix this.

I think a useful new feature for the next version would be to make it possible to move users as well from one platform to another (or one version to another), including ACL'S.

Anyway I am going to upgrade to the new version, since it seems to work very well, and LibreSource itself is a very nice platform.