Yes a lot,
-Updated Hotkeys(Added unstick me,car button,hide or unhide player chats)
-Star friend button (which you summon the player)
-New Moves(triggered,dab,rofl,etc.)
-Added new hats in graphics head quarters
-Arte was removed and was replace as a digging place(Inside the Bus at start)
-New items added on event shop
-new gang house template/car statue (skylds furniture)
-Core Electronics becomes (Ion)
-Added a gun info
-New skins
-Dairy hut was upgraded
-Water Park upgraded, also got new hats there (Summer shop)
-Shrekt vs Ifreeze in GST 2016 (Winner:Shrekt)
-Starter gun damage becomes 6 and also its skin was upgraded.
-Some of the guns added a knockback(Ak47) im not sure.
-New admins
and many more.. Hope this help