Euro Truck Simulator 2 (ETS2) version 1.39 was a major update released on November 3, 2020

Cargo & Trailer Packs:

Essential for the new 1.39 trailer features are the Heavy Cargo Pack , High Power Cargo Pack , and the Schwarzmüller Trailer Pack .

in the sound options, providing players with more control over interior cabin sounds and turbo whistling. SCS Software's blog Major DLCs Compatible with 1.39

Euro Truck Simulator 2 is less of a "game" in the traditional sense and more of a meditative experience. With all DLC installed, it transforms from a simple truck driving sim into a massive, continent-spanning logistics empire. Version 1.39 is a particularly stable and significant milestone in the game's history.