Sim Update 4 Beta (1.6.31.0) Release Notes - November 28, 2025

RELEASE NOTES Sim Update 4 Beta - 1.6.31.0

If you are playing on PC, outdated packages in your community folder may have an unexpected impact on the title’s performance and behavior.

If you suffer from stability issues or long loading times, move your community package(s) to another folder before relaunching the title.

Stability & Performance

  • On PC and Xbox, changed the way the mip evictions are handled to improve texture management and reduce stutters.
  • On Xbox, GPU is now used to manage the mipstreaming and reduce stutter frequency.
  • Improved texture quality management to reduce stutters.

Physics

  • Fixed self impacting build up burst of wake turbulence that would happen when helicopters were touching the ground and that would cause absorbed torque / RPM changes on some helicopters.

Aircraft Engines

Piston Engines

  • Fixed an issue introduced in SU4 that caused aircraft that override the manifold pressure to see a different change of engine performance when compared to SU3.

DevMode

Scenery Editor

  • Faster scenery objects snapping to ground
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