No software is perfect. Here is what the community is reporting on the SCS Forums as of the *"1.0s" hotfix:
*SCS Software has confirmed that v1.50 completes the "internal rendering cleanup" needed for future updates, specifically paving the way for the long-awaited**Heart of Russia * DLC and eventual Multi-core CPU support. Version 1.50 is the foundation upon which the next five years of ETS2 will be built. Euro Truck Simulator 2 v1.50.1.0s