This was actually released a little while ago, but the news system wasn't working properly, so it wasn't published. Improvements:
- Added call buttons on the elevator shafts, so you can see who is waiting to go where
- Elevator shafts are now semitransparent, so you can see the rooms below them.
- Numerous icons added to the UI, so it's not just text now.
- Money was introduced, you will now gain rent from offices and loose money when you construct rooms.
- Day of week and date added to the top bar
- Express elevator added
Full credits (again) to ac for this, he is truly a remarkable coder.