The 1.45 update was a major milestone for ETS2, introducing substantial free content upgrades and quality-of-life improvements. 1. Hannover Map Rework
The most straightforward method is to purchase the game directly on . Steam is the official platform for ETS2, and it's where you will find the most stable and up-to-date version.
—gleaming chrome tubes reflecting the sunrise over the Mediterranean. You spent your last virtual Euros customizing yours with a custom paint job, a badge of honor for the thousands of kilometers spent on the A1.
Source: ETS2Modding, Namu Wiki, PCGameBenchmark
If you already own the game on Steam, it will update to 1.45 (or the latest version) automatically.