Sony Online Entertainment and the DC Universe Online team have sent word that Update 5 "Fate of the Fortress" is now live across all servers.

Here's a synopsis straight from the press release:

The Fate of the Fortress Game Update Features:

• Fortress of Solitude Eight-Man Group Combat Raid: Follow Superman and Lex Luthor as they team up to defeat Brainiac and regain control of the Fortress of Solitude. Players will earn Marks of Krypton good towards purchasing new gear in the Watchtower or Hall of Doom.
• New Gear & Loot: Players can get cool new pieces to add to their Wayward Drone set in the Hive Hard Mode Alert, including backplate, thorax, faceted headguard, and gloves. Plus, the second part of the Fortress of Solitude raid offers up to 30 new weapons, completing the Prismatic set. Finally, for those who complete all the briefings in both Fortress raids, there is a General Zod-inspired Banished Kryptonian Cowl to claim for players' valiant efforts.
• HIVE Hard Mode - Tier 2 Alert: Now offered in a "Hard Mode" version, the HIVE Alert takes the challenge to a whole new level of fun and rewards players with Marks of Distinction.
• New Batcave PvP Map: A new Batcave map brings players to Batman's inner sanctum for a two-versus-two battle, delivering a higher level of challenge to players and more gameplay combat and fun as they battle friends in the Batcave.  
• Dueling: The new dueling gameplay mode allows players to challenge another Hero or Villain to a one-on-one fight - to get started, players simply flag themselves as open for dueling and get ready to rumble.

Find out more about DC Universe Online.