I don't think that's possible

Originally posted by Telvannah:

... to make sure I don't suddenly end up with wrong map-info

What do you meant by that?
I'm still playing on a world created almost 2 years ago and still enjoy all (map) updates since then tanks to the awesome "Upgrade World" mod -> https://github.com/JereKuusela/valheim-upgrade_world/blob/main/README.md