Patchnotes of today patch

So they brought in the Hyjal quest rings and gave us all exalted with Aldor/Scryers today. Is there any way to see what else they changed in the Patch? Maybe Nethervortex is now dropping from Vashj? But i dont want to waste another 15k honor to try it out..

I just tried it. They can now randomly drop from Boss Chests it seems. Got one from Hydross and one from Vashj Chest. So i guess the one from Vashj is guaranteed now and the others have a chance of dropping it.