If you already own the Union Pacific DDA40X Centennial you will get a free patch today adding the new features to your locomotive. This includes:

1) Operational selector lever added.

2) Completely new sounds.

3) Improved cab details.

4) Improved Exhaust smoke.

5) Doors and windows animation fixed.

6) New headlights.

7) Some working switches in the Control Panel.

8) Sounds for doors and windows.

9) Four new scenarios for Sherman Hill.

10) Quick drive added.