For the American Truck Simulator the huge update 1.53 is now available for Linux on Steam.

Changelog

Map

California Rework - Phase 4 release

Gameplay

Dynamic cargo loading & unloading of logs available throughout the USA
New Special Transport route from Los Angeles to San Diego
Raised speed limit for Special Transport jobs from 40 mph to 55 mph

Vehicles

The new Fifth Generation Freightliner Cascadia® added to Driving Academy
Fully functional sliding tandems and fines system

UI

Visualization of changed options in the settings
Smooth and Auto camera centering