Sim Update 3 Beta (1.5.8.0) Release Notes - June 18th, 2025

Multiple active investigations are in progress for the performance issues reported on Sim Update 3, but we need your help!

We’re continuing to narrow down cause of the performance issues, and have added additional telemetry to the latest SU3 flighting update (1.5.8.0) to aid our investigation. :police_car_light: Please note 1.5.8.0 may cause severe performance degradation around large airports and when restarting flights (most severe on Xbox Series X|S) :police_car_light: . However, the data and feedback you provide is critical to solving these issues.

If you no longer wish to participate in Sim Update 3 flighting, please follow the steps at the bottom of this message to opt-out.

Thanks so much for your continued support!

Reminder: If and when you notice too much VRAM being used, please take a screenshot with DFPS info enabled and send the report available in “Options > General > Experimental > Create a report”.

-The Microsoft Flight Simulator Team


To opt out of the Insider Program, navigate to https://www.flightsimulator.com/profile/, and at the bottom of the page select “Opt Out” under the Insider Program Opt Out section.

MS Store

If you have joined the Microsoft Flight Simulator Beta in the Xbox Insider Hub, you will still need to follow the same instructions to unenroll.

  1. Open the ‘Xbox Insider Hub’ app.
  2. Navigate to ‘Previews’ > ‘Microsoft Flight Simulator Beta’ .
  3. Select ‘Manage’.
  4. On the left side, select ‘Leave preview’.
  5. Wait for the unenrollment to complete, restart your Xbox or PC, then launch the game.
  6. PC Users: If not on a Custom path, you will have to reinstall the sim to restore the prior build.

Steam

  1. Open your Steam Library
  2. Right-click Microsoft Flight Simulator 2024
  3. Click “Properties”
  4. Click “Betas”
  5. Select “None”

RELEASE NOTES Sim Update 3 Beta - 1.5.8.0

If you are playing on PC, outdated packages in your community folder may have an unexpected impact on the title’s performance and behavior.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

New Content and Features

  • Added ForceFlare parameter to LightAttributes section of FX files

Stability & Performance

  • Improved avatar thumbnail generation time
  • Avoid freezes due to airport rendering
  • Fixed a crash on exit when an external view of a glass cockpit was open.

General Bug Fixes

  • Fixed controls infinite loading when going back from aircraft selector after selecting the same aircraft
  • Added gamepad R-Stick control to scroll in the in game panels

Aircraft

Boeing F/A-18E

  • Fixed aileron trim issue
  • Fixed boarding passenger available into ATC
  • Fixed floating light model of the left wing on last LODs

Cessna 172 Skyhawk

  • Fixed Copilot not spawning

Diamond DA62

  • Fixed unable to setup passenger before launch freeflight in the EFB

Aircraft Core Systems

  • Fixed inverted water rudder control at low speed on water

Failure / Wear & Tear

  • Improved drift damage calculation to ensure that the drift damage is light at low speed, but much higher at high speed. This should help prevent it from triggering during taxi, but still impact the tire wear rate on landings.

Aircraft Gameplay

ATC

  • Fixed a bug where ATC stopped following the route after an arrival/approach procedure was inserted for the first time.

Traffic

  • Fixed aircraft array randomly being filled with invalid variations (fixes some stutters at airports)

DevMode

General

  • Updated missions available through the Career tool

SDK

Samples

  • Updated Cabri G2 sample
  • Updated DA62 sample

WASM API

  • Fixed Wasm module with WasmSystems not reloading/recompiling when restarting
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