You can now play online games against bots! Use the "Add Bot" button from a game lobby to add a bot player to your game.
Two new mutations have also been added: Clone Wars, where all units on each team are the same unit. And Units from All Factions, where Human, Robot, and Critter units can play alongside each other.
The Map Editor has had several improvements: Selection tool, Cover multi-select, and easier view movement.
Additionally, there have been several balance changes and bugfixes.