About two weeks ago, Crygil announced some Arena rating system and requirement changes on the official forums. Well, according to Bornakk, the update to the 3v3 and 5v5 brackets are now active.

You can read about the changes in our previous article, but basically Blizzard has changed the rating system of the 3v3 and 5v5 brackets to make it so a similar number of players will be able to have comparable ratings to those in the 2v2 bracket. Also, the personal and team rating requirements for the item level 239 weapons have increased from 2200 to 2350.