Add a note to warn people about losing their world save! This is awful! We lost hundreds of hours of world progress updating our server. The world files just disappeared. Not even a warning to backup before we updated, everything is just gone.
Edit: Before you tell me to check my worlds_local folder in .config, it doesn't exist. I don't have that folder, just a 'prefs' file in the .config>unity>irongate>valheim folder path. No local world backups to move, nothing at all. We lost everything to this update.
your old worlds should still exist in worlds/ directory, the issue is that dedicated servers fail to load from that directory and instead creats a new world in worlds_local/ we are trying to get a fix out as soon as possible. Unfortunately if the issue already happened, its easiest to just manually copy your world from worlds/ to worlds_local/ and it should be fine. as far as we know, really sorry about this :(