This specific update (released around April 2014) was a major milestone for the game's engine :
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The 1.9.x series of updates was pivotal for ETS2. It introduced significant improvements to the AI traffic system, making the roads feel more alive and unpredictable. For many, this specific version was a "sweet spot" for modding. Before the game moved toward more complex lighting engines and DX11 support in later years, v1.9.24.1s was a stable, highly compatible foundation for the "ProMods" or "TruckersMP" communities to build upon. Conclusion
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