[Question]Updating the game and open a old save

[bobx7]

So, my question is, after i update the game and open a old save, will the world be the same or the update will affect the save instantly?

 

Sorry for my bad english, but i think thats readable.

[ImDaMisterL]

New craftables and mechanics (like overheating or wetness) will be added to your old save file, but any and all mobs, items, structures and etc added with worldgen won't be added. You'll have to generate a new world to have those.