You don't see important additions in the french version because nearly everything was pretty much perfect in the 4.1 revision (Except for the achievement list, That was terribly bad, Some numbers weren't even right.)
The french version simply needed polishing of things that we're incorrect, All game mode descriptions/help pop-ups we're already good.
I double-checked the spelling on everything, Added the new lines and translated them and fixed every typo as well as polishing grammar on several assets.
Trust me, The french version is near perfect, If not entirely.