You will be stuck on v1.39 and miss out on the massive graphical overhauls (like the 1.40 lighting system or 1.50 engine updates). The Best Way to Get ETS2
: The port of Calais in France received a major visual overhaul, including new assets for terminals, ramps, and fences to better reflect its real-world scale. You will be stuck on v1
One reason people seek a pirated v1.39 is to use mods that don’t work on newer versions. Here’s how modding differs: including new assets for terminals