Zul'Aman is open in Burning Crusade Classic Anniversary
The 10-player troll raid needs no attunement, and rescuing every hostage in time earns the Amani War Bear mount.

Blizzard says the Gods of Zul'Aman update is live in World of Warcraft: The Burning Crusade Classic Anniversary Edition. The new raid is a 10-player, level 70 instance in the Ghostlands with six bosses: Nalorakk, Akil'zon, Jan'alai, Halazzi, Hex Lord Malacrass and Zul'jin.
No attunement is needed to enter, and the raid has a 3-day reset lockout. Hostages are held inside, and a timer starts once the raid breaches the gates. Each lieutenant you beat frees a hostage, adds loot and extends the timer. Rescue every hostage before time runs out and the raid earns the Amani War Bear mount.
The update also removes attunement from The Battle for Mount Hyjal and The Black Temple, lowers the reputation needed for Heroic dungeon keys to Honored, and moves Heroic dungeons to their final, easier tuning. Doomlord Kazzak and Doomwalker now drop Bind on Equip loot.
More bosses now drop Badges of Justice, including everything in Karazhan, Gruul's Lair, Magtheridon's Lair, Serpentshrine Cavern, Tempest Keep and Zul'Aman, and G'eras in Shattrath sells stronger gear for them.
Sources: Blizzard News · MMORPG.com