Updating stuff..... ruh roh

So I havent played pretty much alll year and I have decided to update my mods becuase with the updates, they for sure need it! I wanna keep my mcc settings but somehow have 2 files called mc_setting.cfg and idk which one to keep or if theyd both have the same info.

Also any other tips for updating mods would be helpful, i'm not very good at this <3