The patch hit on Tuesday morning, and Tuesday afternoon, I began my usual cycle of addon laziness-- instead of actually updating my addons, I just checked "load out-of-date addons" setting myself up for trouble down the road, I'm sure.
But while I'll be having addon problems for a while (at least until the next patch-- I'll probably finally fix everything right before 2.3 breaks them all again), you don't need to. Kaydeethree has put together a terrific guide to fixing your addons after 2.2, with links to addons that have updated, addons that haven't updated, and a few great tips on how to update your macros as well.
It seems like KD3 is keeping an eye on addons as they update as well, so the thread will probably be updated accordingly. If, unlike me, you're motivated enough to keep your addons as up to date as possible (so that they all, y'know, actually work instead of throwing error messages at you every few seconds), then KD3's guide should help.