We're excited to announce that we've fully migrated the Xbox Forums to their new home, here on the Microsoft Community forums!
As of today, going to forums.xbox.com will redirect you here to the Xbox area of the Community forums. We've moved all of your existing threads over so you can continue and start conversations with the new forums experience.
We sincerely appreciate the feedback you have provided over this transition and can't wait for you to check out the new Xbox Forums!
Starting over once you get the patch IS recommended. The patch does not fix any problem that has already existed in a save file.
Definately Start over if your not too far in. Patch doesn't fix old or change old saves. The way you can find out is try to load older saves. When you get back far enough they will report not compatible with this version.