World of Warcraft: Wrath of the Lich King Classic's next update is a big one, adding not only the expansion's penultimate raid but also a slew of modern quality-of-life features, including one highly-requested feature Blizzard at one time seemed intent to never add: the Random Dungeon Finder.

The Fall of the Lich King patch will arrive the week of October 10. The Icecrown Citadel raid, the star of the update, will open on October 12, after which players will be able to confront Arthas himself. The update will also add three additional dungeons--The Forge of Souls, Pit of Saron, and Halls of Reflection--alongside a new difficulty for the game's existing dungeons.

Aside from the new raid and dungeons, the biggest addition is without a doubt the Dungeon Finder, often called the Random Dungeon Finder, or RDF, by players. Originally added in 2009 towards the end of Wrath of the Lich King's lifespan as a cross-server matchmaking tool for dungeons, RDF automatically puts players into a group based on their specific class role and then teleports them to the start of the chosen dungeon. Though players could select specific dungeons to queue for, most players used it for the "random" dungeon feature, which granted players additional rewards once per day. It's a feature that, for the most part, largely still functions the same in the modern version of WoW.