The first content update fixed a couple of bugs and introduced some new features as described below:
- Possible to undo moves
- Automatic performance suggestions
- New "rotator" floor type
- More rooms
- Changed chapter and rank requirements
- Bug fixes
You can get the update by patching from within the game or you can re-download the new setup and install over your current installation (saved games will be preserved).
Here is a short preview showing off some of the new features...