OpenBVE v1.12.0.1

Significant Changes:

• Fix: BVE5 TFO externals missing.
• Fix: Incorrect Y-axis interpolation in some BVE5 routes.
• Fix: Using the headlights key with no sound defined crashed.
• Change: Speedups and improvements in Wavefront OBJ parsers.
• MSTS: Basic implementation of various panel controls and exterior bits, related to steam engines. (No physics at present)
• MSTS: Fix issue when using two different consists as TFOs.