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Lockheed today released version 2.1 of Prepar3D. Here is what LMOC had to say; "Today announces the release of the next evolution of Prepar3D v2 with Prepar3D v2.1. Updates to Prepar3D v2 are available in both a patch to an existing v2 installation, or as a new installer from your Purchased Downloads page. If you are a current Prepar3D v2 user, there is no charge to upgrade." Here is a short list of the fixes and updates: Rendering, Performance, Backwards Compatibility, Weather and Clouds Rendering Features Added DirectX® 10 fallback hardware support for DisplayLink and other monitors Dynamic shadows now can be enabled to render when you do not have tessellation (GPU Terrain) enabled Further optimizations and enhancements to prevent microstutters that were reported Further optimizations to the autogen and terrain paging system Rendering/Performance Issues Resolved Lessened the specular shine on terrain to help alleviate anti-aliasing on runways, roads and terrain Fixed an issue where the HDR lighting feature could get into bad rendered states with extreme darkness Lightened star and other reflections at night Fixed an issue where Effect EffectParams didn’t turn off lights or effects Fixed an issue where airport light beacons cast shadows Fixed an issue where cloud and fog visibility was rendered at about half of what was set Fixed an issue where terrain lighting and shadows could be in wrong direction Fixed an issue where windsocks did not visibly change at all, always pointed North Fixed a rendering issue where a white square was visible around the moon Fixed an issue where boat wakes were not being rendered on certain AMD graphics cards Fixed an issue where clouds could be seen through the horizon through thick fog Fixed an issue where a black screen could occur with HDR Lighting feature enabled Fixed an issue where a black screen could occur going in and out of fullscreen Fixed a rendering issue where progressive taxi arrows were not rendering Fixed a rendering issue where emissive objects were fogging inappropriately leaving artifacts on the sun and moon Fixed an issue where the new dynamic shadows did not respect tiled textures Fixed a large performance loss when main Prepar3D window did not have primary focus Fixed a large performance loss when moving panel(s) to a second monitor Resolved a few memory fragmentation issues To read more of the release, and to see additional fixes and compatibility improvements, you can read the entire list here.