Gear that monsters drop now rolls its own stats. Every piece gets its defence from its level, plus random bonus lines: Normal 1, Rare 2, Extra rare 2 bigger, Epic 3, Legendary 3 bigger. Shoes always roll Flee and gloves always roll Hit. The tooltip shows the rarity under the item name.
Gear you already own keeps its stats.
When a monster drops something Rare or better, a light pillar in that colour rises from its body, so you can spot it in a crowd. Epic and Legendary drops also play a sound. Party members nearby see and hear it too.
New in Video settings: Dark nights. Untick it if you prefer brighter evenings in the 2007 look.
Start the launcher to get the update.