There are new skill trees for the dragon-riding system, with tiers for healing, damage and tanking. You can choose one specialty or mix and match.
The new dungeon is the water-themed 'Shrine of Handras'. "Explorers will find the entrance to the fully submerged instance in the southeastern region of Olandra," explained the game's publishers Infernum in a press release. "Inside the shrine, brave adventurers will find a number of belligerent water monsters, dangerous whirlpools, and five fearsome bosses. Only those who have paved the way through the algae forest, past sunken ships and giant clams, will face the final battle with the dragon Handras."
Here's a trailer showing several features from the new update.