Brewfest is back again for another year, starting today (Spetember 20th) and running until October 5th.
Coren Direbrew is now a level 85 fight only and drops ilevel 365 items. Once a day you can earn the Keg-Shaped Treasure Chest for defeating him which might include a rare mount (Brewfest Kodo or Brewfest Ram).
For details on all the quests and achievements, see the full guide – Brewfest Guide