Path of Exile has been updated to version 1.93 today by Grinding Gear Games. You can find out the complete patch notes for this update from here.
The only thing that appears to have been resolved with this patch is support for a new pack that will be a part of the Scourage Expansion. Get the patch notes below, or have a look at them on the official website.
Path of Exile Update 1.93 Patch Notes
Here are some of the details on this new Scourage expansion.
In Path of Exile: Scourge, you must fill the Blood Crucible with the blood of your enemies then shift into an alternate Wraeclast where an apocalyptic event rages, in order to slay powerful demons and craft potent items. Our October expansion contains the Scourge challenge league, new skill gems, a rework to the passive skill tree, improvements to the Atlas endgame, new aspirational endgame content, new guild features, new unique items and much, much more.