anyone know what has been changed with the new update?

Do recheck game files in Galaxy. There is no new update for GOG/GOG Galaxy builds since 2018.
Or you miss and post in wrong forum.

If you not interested in online - better stay with offline installers. But this one is broken - downgraded to 1.0 + 1.1 exe. Lurk google for 2.0.0.5 build.

Thank you for your answer. It's strange, I have GoG Galaxy 2.0, never moved or uninstalled the game.
Now I just got a 5mb download for Empire Earth (and no changes again...)

I hope it doesn't add duplicate files. My SW Battlefront 2 is now 9.59 GB. It looks a bit large.