If you go to the Pro 2017 Driver download page there is a new package that includes USB-C drivers it seems. I looked at the drivers to understand changes. I found the new package even though it was 70 MB bigger seems to have dropped these drivers:
| SurfaceAccessoryBluetoothPairing |
| SurfaceDockFwUpdate |
| SurfaceDockIntegration |
| SurfaceKeyboardBluetoothFingerprintSensor |
| SurfaceKeyboardFingerprintIntegration |
| SurfaceKeyboardFingerprintSensor |
| SurfaceTypeCoverV3FwUpdate |
| USBAudio |
| SurfacePen |
| SurfacePenClickFilter |
| Chipset_LPSDHost |
| Chipset_LPSystemNorthpeak |
| Chipset_LPSystemThermal |
| DPTF_dptf_pch_RS4RS3RS2_ |
| SerialIO_SPI |
SurfacePowerMeter |
