Moderator
Jan Dembowski
(@jdembowski)
Forum Moderator and Brute Squad
When in doubt and generally speaking it’s always a good idea to have a full backup before you update.
http://codex.wordpress.org/WordPress_Backups
http://codex.wordpress.org/Backing_Up_Your_Database
http://codex.wordpress.org/Restoring_Your_Database_From_Backup
That’s why the first steps in that article begin with “Back up WordPress”. That way if you have some sort of catastrophic problem (you shouldn’t) then you’ll be able to put it all back the way it was before you upgraded.
Thanks for the hint! I was already searching for a good backup solution… did not find a good one though. I will check these ones out.