@Jacknchloe Yes, you just delete all the files of the existing MCCC install and put the new ones in.
Generally with a patch normal CC does not need any updating, but any MODS you use might. There are exceptions where some CC also needs updating, but it's not the norm.
Make it a practice to keep any and all mods you use in a seperate subfolder, perhaps named for where you downloaded it or some other personal approach that makes it easy for you to check the sites of all of your mods for updates after there is a patch. As a rule, do not use ANY mods after a game patch until either:
1. The modder updates it, or
2. The modder posts saying that it does not need an update.