[Hotfix] What's the change log for this hotfix?

In Impulse, right-click on the game and click View History.

Fix to get mods working, and fix to the French version that was crashing if you clicked upgrade on a starbase.

Only two things I know about that were hotfixed.

Here you go;

-Fix for encoding issue with some French and German characters
-Fix for crash in French version of the game (e.g when selecting Argonev star base's upgrade button).
-Fix for mods being disabled.
-Research description for improved destabilization fixed to refer to the Argonev instead of the Orkulus.

Lol pretty much the same for original sins, except for the research update

Haha thanks, yeah I figured it was just that description fix.

Bloody french!! Haha jk

-Phalnax

Will this screw with saved games?

Probably not. 

No, save games will be fine.