Short answer: Legacy and Enhanced are two separate environments. Mods are not interchangeable and saves do not carry over.
Main differences
- Engine and assets: Enhanced is the newer build (gen9) with better lighting, weather and loading
- Mod ecosystem: Legacy has years of backlog; Enhanced is younger but growing
- Compatibility: the same mod needs a separate adaptation per edition — they are two market entries
- Saves: not readable across editions
How to choose
- Want old mod packs, or have a modest PC → Legacy
- Want the new engine and visuals, and can live with a newer mod library → Enhanced
Switching in the client
Use the game edition switcher on the left. The client keeps separate installed lists per edition; just never drag a Legacy package into the Enhanced folder manually.
See also: Enhanced installation guide · Required components