Since I already covered the warlock portion of the patch notes, you know, since they're non-existent (except for a few bug patches... thanks nibs!). I wanted to quickly touch on the DK changes. The ones I copied are the ones that pertain to my specs of choice, and they're pretty simple.
In short, DW DPS really has no changes, but DW tanking gets a slight buff with the addition of Rune Strike to the ToT talent. This should help increase single target threat generation. The increase in armor from the unbreakable talent and the increase in frost presence damage reduction is an obvious buff as well. DW tanking should be more viable now than ever.
That's pretty much all there was to this patch class-wise for me. Adding Ony should be fun, I'd love to get a crack at her, but I'm not sure when that'll be. Heck, I still haven't successfully done the new VoA boss. I keep getting in PuGs and they keep being failsauce. Oh well, I'll get there sooner or later. I probably need to convince my raid group that we need to "check those off our list".
To be honest, this patch was really quite small. I suppose it is a minor patch and, thus, should be minor. However, if the patch is small and the changes are minor, why all the lag? Why the server instability? Did they just figure that we couldn't get the same "patch day" feel without it? "Working as intended"? *Sigh*
2 weeks ago