1. Integrated support for dungeon pack config options into the code (i.e. we actually DO what the settings specify) 2. Added random transitions from one dungeon type to another. Dungeons might also begin with a non-default pack. 3. Fixed a config reading bug that caused settings to be ignored and some invalid settings wouldn't trigger exceptions. Also fixed other dungeon pack bugs.
DimDoors
Dimensional Doors for Minecraft Adds several items that allow the player to move between and create dimensions
see the MC forum topic for details