Update 1.39 for (ATS) is a significant milestone that introduced highly requested features, including ownable lowboy trailers and the legendary Freightliner Cascadia® . While the current version of the game is much further along (v1.58 as of early 2026), version 1.39 remains a popular stable point for players using specific older mods or hardware. Key Features of the 1.39 Update
: This iconic truck was added as a brand-new vehicle in the 1.39 cycle. Lowboy Trailers american truck simulator 139 download new
: The update introduced a turbo sound slider and improved spatial mixing for cabin audio. How to Download and Install Version 1.39 American Truck Simulator Update 1
If you are looking for the "newest" content rather than a legacy version, recent updates have added: American Truck Simulator 1.39 Update Experimental Open Beta Lowboy Trailers Sound Improvements : The update introduced
Triple trailers and B-doubles received a physics overhaul. The dolly (the connector between trailers) became a separate physical entity, making backing up much harder but turning the highway driving into a true test of skill.
Here is a helpful guide on what 1.39 was known for and how to safely access it if you need it for mod compatibility.
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