While version 1.59 for both ETS2 and ATS released in May, SCS Software already released beta version of ATS 1.60 and it means that cycle of previous version should be quite short. As always you can read about all changes of the official blog. To try beta go to Steam client → LIBRARY → right-click on American Truck Simulator → Properties → Betas tab → Beta Participation drop-down menu → public_beta. No password is required. Sometimes you will have to restart your Steam client to see the correct branch name there.

Changelog 

Vehicles

• Players’ Company Paint Jobs

Visual

• Improved Material System
• Light Tweaks

Sound

• Game Radio

UI/UX

• Expanded Rest Mechanic
• Job Details Widget