Warlords of Draenor hotfixes have been published the 01/29/2016 ! Here is the patch notes :
Patch 6.2.3 Hotfixes: January 29 (Source)
Dungeons and Raids
- Fixed an issue during the Murozond encounter that could affect Death Knights and cause their Anti-Magic Shell ability to go on a slightly longer than intended 12-day cooldown.
The Vortex Pinnacle
- [Requires a realm restart] Asaad's Static Cling ability now only targets 2 players (down from 5), and has a preference to for characters in a ranged Specialization.