Laminar Research has released 12.4.0 Beta 3 for X-Plane 12, bringing a wide range of fixes and refinements across aircraft, avionics, graphics, and core simulator systems.
On the aircraft side, issues affecting landing gear indicator lights on fixed tailwheel aircraft have been resolved, alongside a fix for incorrectly displayed flight plan routes on EFIS maps. The Airbus A330-300 also receives several targeted improvements, including corrections to the Managed Dot logic at cruise altitude, refinements to the MCDU PERF APPR page, fixes to the ND drawing, enhanced autopilot turn rates, and general usability enhancements, such as enabling the transponder CLR button.
Beyond aircraft changes, the update also addresses visual and environmental issues with corrected sky rendering, improved ND visuals, and updated global airports to resolve mesh problems, including Lukla Airport (VNLK). ATC reliability has been improved with the restoration of missing ATIS at some airports, while avionics have benefited from fixes to high wind speed displays on the X1000.
Stability and usability remain a key focus, with multiple crashes resolved across UI, multi-monitor, and 2D panel setups, alongside smoother ground vehicle docking and improved camera data handling. VR users will notice fixes to the radial menu and several rendering issues, while SDK improvements enhance plugin stability, error handling, and overall robustness.
Laminar Research X-Plane 12.4.0 Beta 3 is available to download now for users who have opted into the public beta.
X-Plane 12.4.0 Beta 3 Changelog
Aircraft
- Fixed an error where the landing gear indicator lights were broken on fixed tailwheel planes (XPD-17687)
- Fixed an issue where the flight plan route was not shown correctly on EFIS Maps (XPD-17691)
Airbus A330-300
- Various smaller improvements and fixes
- Fixed an issue where the “Managed Dot” on the altitude indicator did not extinguish when reaching cruise altitude (XPD-17391)
- Fixed the display of QNH on the PERF APPR PAGE of the MCDU (XPD-17627)
- Always allow the entry of values on the PERF APPR PAGE regardless of the current flight stage (XPD-17634)
- Fixed an issue where selecting heading mode would disable ALT CRZ (XPD-17673)
- Fixed several drawing issues on the ND
- Improved autopilot turn rate
- Enabled the CLR button on the transponder
- Several other minor improvements
Graphics
- Fixed an issue where the sky wasn’t drawn correctly (XPD-17690)
ATC & Radio
- Fixed missing ATIS for some airports (XPD-17630)
Avionics
- Fixed an issue where wind speeds greater than 99 knots would not be displayed correctly on the X1000 (XPD-17651)
Scenery
- Updated global airports to fix various mesh issues (e.g. VNLK – Tenzing-Hillary / Lukla Airport)
- Improved docking behaviour of Ground Vehicles
User Interface & Controls
- Fixed a crash when the user slewed an aircraft on the map with chocks set (XPD-17680)
- Fixed an issue where the camera position wasn’t populated correctly to the corresponding datarefs (XPD-17694)
- Added a new dataref to indicate if Tobii Eye Tracker is enabled (sim/graphics/view/eq_tobii_eyetracker)
- Fixed 10 nm approach startup option (XPD-17640)
- Fixed a crash when using the first monitor as a 2D panel only (XPD-17629)
- Fixed an issue where mouse clicks were not handled correctly when using 2D panels fullscreen (XPD-17644)
- Several stability improvements
VR
- Fixed an issue where the radial menu was hanging sometimes (XPD-17686)
- Fixed an issue where MSAA 8x caused visual distortion (XPD-17573)
- Fixed an issue where FXAA caused rendering issues on the right eye screen (XPD-17638)
SDK
- Improved error handling in case of unexpected behaviour of plugins
- Improved stability of SDK in case of plugin errors (XPD-17697 & XPD-17689)
- Fixed a crash when closing windows created by plugins (XPD-17624)
- Fixed an issue where calling XPLMCreateProbe could cause a crash (XPD-17652)
- Improved internal handling when subscribing to resizable arrays using the WebAPI
