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Major enhancements since the v2018.3 LTS include:
* a developer preview of the upcoming Compositor graphical rendering framework as a separate pre-built binary,
* enhancements to both the JSBSim and YASim flight dynamics models
* DDS texture caching to reduce load times
* faster loading and more memory efficient buildings
Additionally 31 completely new aircraft have been added to the official hangar, and a further 71 have received major updates.