Xantfarm simulates an ant hill and displays it in the root window. There are three Elements in the ant world: Air, Dirt, and Sand. Ants move through Air, dig up Dirt, and drop it as Sand. Ants have three behaviours: Wandering, Carrying, and Panic. There are a few simple probabilities built in to the program that control the transitions between Wandering and Carrying. This release can now write the current status of the ant hill to a checkpoint file periodically.