I have run into some troubles when I applied the patch, resulting in having to reinstall the whole game. Between the expansion/stuff packs and store item, it took me more than a day. Then, just to make sure it would be safe I only patched back to 1.55 and reinstalled all CC as well. I am in the process of attempting to patch to 1.63 again soon, my game seems to run more smoothly than it had been for a while before that.
Here are the mods that needed to be updated for 1.63:
Weatherstone Map Tag mod
Mods that do not need an update:
Last update: 07/11/2013