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If you are playing on PC, outdated packages in your community folder may have an unexpected impact on the title’s performance and behavior.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

 

 

 

 

Edited November 28, 2025Nov 28 by MaGer1965

10 minutes ago, MaGer1965 said:

...no release notes yet.

Heh…I came here to say just the same.  You win! 😇

-B

Runs fluid, a little less VRAM usage in my usual test scenario. ..👌

Edited November 28, 2025Nov 28 by MaGer1965

I think I might now jump into the SU4 goodness tomorrow after work. This has to be the last weekend coming up until full release.

and time again for DLSS swapper😄

Edited November 28, 2025Nov 28 by turbomax

At least I can now load it without crashing. So they fixed that. But the graphics look sharper now too, and I am getting 80 FPS at LAX. So there's that. 

Isn't the PS5 release 12/3? So potentially the PS5 RC will be SU4 and then they will start with all platforms on the same build.  Good foundation for them to have everyone on the same code train.

That would also mean SU4 between now and 12/3.

 

Looks like from an initial glance, GSX isn't able to read the aircraft codes properly and thus won't load profiles that come with an aircraft. This was with the FSS 727 so might be specific to this aircraft but otherwise all is well in terms of doing a flight.

AutoFPS even works right out of that bat.

14 minutes ago, Lucky38i said:

GSX isn't able to read the aircraft codes properly and thus won't load profiles that come with an aircraft.

Working fine here. Make sure you're running the 2024 Couatl exe, not the 2020 one.

Edited November 28, 2025Nov 28 by Tuskin38

2 hours ago, turbomax said:

and time again for DLSS swapper😄

Hi mate.  I just saw your post and realised that each time I move between SU3 and SU4 beta, DLSS swapped shows that my files don't change and all of them are the latest.  

Do yours change?

Jase

26 minutes ago, MassiveSim32_Jase said:

Do yours change?

yes, every time Microsoft updates anything, beta or full version,

yes, MSFS2024 shows DLSS 4 in the graphics settings menu, but DLSS swapper still allows to swap from 310.1 to 310.4

No idea if 310.1 is also version 4, the naming conventions is a bit confusing. but I take it 310.4 is still newer than 310.1

-------------------------------------------

After SU4 beta 1.6.31.0 update, BEFORE DLSS swap:

After SU4 beta 1.6.31.0 update, AFTER DLSS swap:

I wish I could see these images instead of 

1 hour ago, Tuskin38 said:

Working fine here. Make sure you're running the 2024 Couatl exe, not the 2020 one.

It's not that, for some reason GSX is reading inside the soundpack folder for the aircraft rather than the aircraft's folder. I've left a ticket on the discord so lets see what comes of it

1 hour ago, Spit40 said:

I wish I could see these images instead of 

before DLSS swapper

 

After DLSS swapper

I assume both DLSSs are version 4, despite DLL name 310.1 or 310.4

at least it is the latest and easy to apply preset K

Edited November 28, 2025Nov 28 by turbomax

Thanks @turbomax!