The Old Maps Guide now stands next to Redick Dass in the Adventurer Training Ground and on every restored 2006 map. Talk to him to travel to any of the 13 maps as they were in December 2006, and back again. Monsters roam most of the 2006 maps, 81 NPCs are back, and the first portals between the maps work.
Also new: cave monsters stay on the cave floor, the ship from Hodemimes to Prontera takes everyone on its deck along, and passwords with capital letters now work in the game's login box. Start the launcher to get the update.