Turbine have pumped out the first post-Menace of the Underdark update for Dungeons and Dragons Online.
Update 15: Song of Druid's Deep significantly adds on to the expansion content, including the titular adventure pack for high-level characters. This adventure pack includes four quests and comes in two varieties: level 17 and 23. There's also a new challenge called The Ruined Keep: The Daybreak Ritual which is being included with the Eveningstar challenge pack.
On top of that, the latest update for DDO includes a "monster manual" that can be filled out for extra rewards, the ability to purchase the expansion through the DDO store, and several tweaks for the wet-behind-the-ears Druid class.