Patch 2.2.1 of diablo 3 now is available on PTR, Blizzard also released the PTR patch notes. The major part is about the performance improvements. Here are some details about patch 2.2.1:

GENERAL

 Bug Fixes

  .Fixed an issue that caused some sources of bonus Experience to be added together prior to being multiplied by other Experience bonuses rather than being multiplicative

  .Fixed an issue that prevented some players from receiving the BlizzCon 2014 cosmetic items

CLASSES

 .Barbarian

  .Whirlwind

   .Skill Rune - Dust Devils

    .Reduced the visual noise caused by these tornadoes

 Monk

  .Bug Fixes

   .Fixed an issue that prevented Channeling Pylon from removing the cost of Dashing Strike with the Raiment of a Thousand Storms set equipped

ITEMS

 Bug Fixes

  .Fixed an issue that prevented belts from being able to roll bonus Armor as an affix

  .Fixed an issue that could sometimes prevent Locust Swarm from refreshing the duration of the Zunimassa's (6) Set bonus

  .Fixed an issue that allowed players to equip and use unidentified Legendary Potions

MONSTERS

 Bug Fixes

  .Fixed an issue that prevented Josh Mosqueira (the rift guardian) from dropping loot

  .Fixed an issue that allowed The Butcher and Mancarver's spear attack to be reflected, or slowed

  .Fixed an issue that prevented players with Illusory Boots equipped from passing through walls created by Orlash

USER INTERFACE

 .The recently added social button will now display how many friends you have online and any clan or communities notifications

 .Bug Fixes

  .Fixed an issue that prevented the Greater Rift Completion screen from being closed using the Close All Windows hotkey

  .Seasonal tabs will no longer incorrectly show up on the Achievement and Leaderboard screens when no season is active

Hope all these can help you when playing diablo 3, but as we know, this is not the final version of the patch notes, so you can keep focusing on our website, we will keep updating for you. And we also provide diablo 3 items, if you want to buy diablo 3 items, our site will be a good choice for you.