Personal Bank Upgrade by Guy. Currently I've seen 2 Hours into 1 Hour for 200k coins and 50k emerald collection, and 1 Hour into 20 Minutes for 1mil coins and 100k emerald collection. There's also a setting in the option menu that filters items from your inventory by rarity.



Edit: Foul Flesh also is now a fuel for minions. 90% for 5 hours

Edit v2: There's also 2 new npc's next to Dark Auction house. Shiftry has items like the bartender Most notable a +10 magic find to crit potions. 2nd. NPC is Lucius. Says "My cousin Sirius leads an organization(DA)... Buy a few items from Sirius and come back!"

Edit v3: Final upgrade for personal bank is 20 minutes to No Cooldown for 5mil coins and 250k emerald collection.