Smart Loot & Inventory
It's now much more likely to loot the correct armor type for your current build (determined by the balance of Strength, Agility, and Intellect you currently have, including buffs).
To make looting even better, the Inventory is now 8 slots larger.
Post-Cap Progression
You now gain Mastery experience after reaching the level cap (currently 30).
Each Mastery Level grants a Mastery Point that can be spent in the Skills UI to empower a selected Slot, increasing the power of the Skill or Glyph socketed into it. In future updates, Skills and Glyphs will also receive additional effects, unlocked at specific Mastery Levels.
Sockets & Gems
Equipment now has gem sockets.
All existing raw gems (Zircon, Malachite, etc.) can now be cut into the first tier of socketable gems at the Workbench.
Additionally, a new gem type - Diamond - can be looted from all kinds of treasure chests.
Full jewelcrafting, with more powerful gems and other items, is coming in one of the upcoming updates.
Misc
Minimap now rotates with the camera. More Map & Minimap improvements are coming soon!
The "Chance to not consume ammo" stat on quivers now works correctly.
You can now split a single item from a stack (Alt + Right Click).