As already mentioned when launching ATS 1.31 Open Beta, trailer cables are one of the new shared visible simulation additions. There is also new mirror rendering code, providing more accurate mirrors view, closer to what a real truck driver can see.

In addition, there are two main features that ETS2 gets in this update.
.First, long-awaited random road events finally made it to Europe! There are dozens of them, from the usual minor crashes to the big accidents like burn out vehicles and the emergency landing of small planes.
.Plus, a small surprise which we kept under the lid till the cable reveal blog post – 8×4 chassis for Next-Gen Scania R and S!

There are also some minor changes comming in this version :

• Job selection screens have new filter and cargo search elements.
• UK trailers are not a standalone vehicle for license plates anymore
• Parking brake automatically ON after truck spawn (g_park_brake_init)
• Screenshot name format now based on date and time
• Increased precision trip data (dashboard computer display)
• Faster gear shifting for new opticruise transmissions
• Fixed/updated LP in various countries (Belgian, Norway, Polish, Czech)
• Fixed torque converter locking
• Fixed damaged predefined trucks in dealers and quick jobs
• Fixed trailer damage reporting
• Fixed HDR interpolation

Read more at : SCS Softwsre blog