DC Universe Online Update 5: Fate of the Fortress is now live! It features the second phase of the three-part raid to stop Brainiac in his attempt to harness Kryptonian technology to destroy the Earth. Here are the main features from the patch notes:

• New Alert! – The HIVE Moon Base Alert is now available as a Tier 2 Hard Mode. Look for it under Alerts: Hard T2 in your On Duty menu.
• New Raid! – Enter the Fortress of Solitude and defeat The Avatar of Meta! Look for Fortress of Solitude: The Avatar of Meta under Raids in your On Duty menu.
• New PVP Arena! – Players can now battle against each other in a simulation of The Batcave. Look for The Batcave (2 vs. 2) under Arenas: PVP in your On Duty menu.
• Dueling! – Use the Action menu to challenge another player or turn on Dueling Mode and allow anyone to challenge you. For players who don’t want to participate you can turn off Duel invites in the action menu.

In case you haven't heard the news, DC Universe Online is going free-to-play this month for both the PC and PlayStation 3.