New zones are available--The Moors and The Temple of the Firstborn--and you can access them through a waypoint on the Act 2 map.
Any items equipped via the Armory will automatically swap to wherever the exchanged equipment was stored - whether that’s back into your stash or your personal inventory.
Patch 2.6.0 also introduces a new gameplay mode called Challenge Rifts.
This mode allows you try character builds created by other players, and it’s also a test of how fast you can clear a dungeon.
First, they will always drop with the appropriate main stat for your class (Strength for Barbarian/Crusader, Dexterity for Demon Hunter/Monk, and Intelligence for Witch Doctor/Wizard).
Second, they will always have the ideal number of sockets for that item.