Hey guys! Don't patch unless you have to. Seems the patch has broken all CC that uses slots. This means tables, couches, etc. If you patched in the last few days with the store patch (it was an in-game pop-up from what I have read) your store crap should be ok. Just don't use the new patch until you either have to because you're installing Pets or until creators have had the chance to update.
And don't forget to remove your hacks and mods if you do patch. They rely on game version compatibility so it doesn't matter if you install the EP or not. You patch, you update hacks.
Apparently the new patch fixes the graphical issues experienced by Mac players. So the Mac lovers out there might want to patch regardless and just play vanilla for a while.