Redesigned with more accurate landmarks and infrastructure.
Based on SCS Software’s versioning, is a major update, while 1.53.3.11 (or 1.53.x) would be a subsequent hotfix or patch. As of my knowledge, here is a structured "paper-style" breakdown of what that update contains, focusing on 1.53 as the reference release.
Depending on your specific regional access and DLCs, version 1.53 introduced or integrated the Iveco S-Way Volvo FH5 and FH6 as brand-new drivable options. Quality of Life Improvements: Smooth & Auto Camera Centring: