Hiss got stealth buffed!
I haven't seen any mention of this anywhere either on this site or wowhead, but when I was doing my pandaria tamer dailies today I noticed that Hyuna's snakes Hiss ability was hitting for 300, and then checked the tooltip and indeed, Hiss has been buffed considerably, it now has 3 round cd, but hits just as hard as Bite (in addition to doing the speed reduction)