Version is a cumulative update. It was not a ground-up rebuild but rather a massive polishing patch that addressed years of community feedback. It bridges the gap between a "study-level" simulation (like the PMDG 737NGX) and a "fun-level" simulation. Aerosoft has famously branded this as the "Tactile" Airbus—meaning you can fly it procedurally without needing a real pilot license, yet it punishes laziness.