Default aircraft received significant behavioral fixes:
Horizon Zero: How Microsoft Flight Simulator Patch 1.9.3.0 Changed the Skies Forever Microsoft Flight Simulator 2020 patch 1.9.3.0
Beyond the backend architecture, Patch 1.9.3.0 brought tangible performance gains that users could see on their FPS counters. Microsoft Flight Simulator 2020 patch 1.9.3.0
: DX11 remains the only renderer – DX12 support would come much later (Sim Update 5). Microsoft Flight Simulator 2020 patch 1.9.3.0
Overall, the patch received a from the hardcore sim community—high praise for a bug-fix release.