Upgrade issues with LDAP enabled

Just updating nextcloud to latest version (10.0.1) and proceeded to follow the upgrade instructions - however I seem to have hit an issue since it it spending a long time performing “Fix classification for calendar objects” and looping through all LDAP users and we are not even using calendar events (and only a few users at the moment have ever logged into the system via LDAP).

I see OwnCloud has a Github issue on the topic: https://github.com/owncloud/core/issues/25617

Can changes performed in OwnCloud post fork be ported across to NextCloud?

This one is actually on our todo: https://github.com/nextcloud/server/issues/941

Thanks for the pointer - I thought there would be an existing report somewhere. In the end it took around 6 hours to perform the upgrade - fortunately I left it as an overnight job!

Look forward to seeing the improvement to the upgrade process.