This Patch Release contains updates and fixes for 2026 Season 1.

iRacing Simulator

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AI Racing
  • AI Drivers have improved their racing skills with the Mercedes-AMG W12 E Performance.

  • AI Drivers have improved their racing skills with the GTP Car Class.

Graphics
  • The shiny metallic tire shader has been applied to GTP car tires.

  • For a variety of NASCAR tracks, updated the Musco lighting near pit road so that they illuminate properly at night.

Telemetry
  • The secondary incident limit has been added to the session string as „IncidentWarningInitialLimit“ and „IncidentWarningSubsequentLimit“.

User Interface
  • Completed the conversion of the „iRacing“ driver flag to the „Global“ driver flag.

  • Fixed some issues with Timing column widths on Relative and Standings overlays.

  • Removed a duplicate spotter text message setting.

  • Fixed a few issues with the Widget Editor, including:

    • Licenses were not displaying in overlays when the main black box was collapsed.

    • Position saving behavior is now functioning when using a scaling override.

    • Fixed an incorrect display for Time Trial info in the Lap Timing overlay.

    • Fixed a visibility issue with the clock widget.

Cars

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<Car Class> GTP Class Cars
  • These cars now utilize the Vision tread tires that will debut next season.

  • Tire properties have been updated for the new Vision treads!

    • Learn more about this new breed of tire from our Executive Producer here:

https://forums.iracing.com/discussion/90052/gtp-tire-update-planned-for-early-january/p1

    •  

<Car Class> NASCAR Xfinity Series
  • For the damage model, stiffened the rear bumper hull and increased the rear bumper yield limits.

Acura ARX-06 GTP
  • A variety of vehicle changes for post-2026 Season 1 Release have been completed, including:

    • Aerodynamics have been adjusted slightly.

    • Vehicle weight has been reduced by 5 kg.

  • iRacing setups have been updated.

ARCA Toyota Camry
  • Fixed an issue where a paint pattern was always appearing 100% black.

Audi 90 GTO
  • Turbo and blow-off valve sounds have been improved.

BMW M Hybrid V8
  • Fuel burn rate has been increased slightly.

  • iRacing setups have been updated.

Cadillac V-Series.R GTP
  • The spinning tire texture has been updated.

  • iRacing setups have been updated.

Dallara IR18
  • Fixed a flipped driver’s side aeroscreen decal.

Dallara P217
  • Fixed an issue where opponent cars could incorrectly appear to be grounding and throwing sparks.

FIA Cross Car
  • For the damage model, wheel breakage threshold has been increased.

Ferrari 499P
  • Vehicle and tire properties have been updated, including: aerodynamics, brake cooling, engine braking, MGU friction, brake pedal force demands, rear suspension geometry, and vehicle weight has been reduced by 10 kg.

  • Engine cooling, fuel burn rate, and aerodynamic parameters have been adjusted slightly.

  • iRacing setups have been updated.

Porsche 911 Cup (992.2)
  • The steering wheel is now off when „Static with Display“ is the selected steering wheel mode in the Graphics options.

  • A slight adjustment has been made to the static car sounds.

  • Reduced some harshness and static/crackle frequencies in some engine and transmission sounds.

  • A slight static sound has been removed from the in-car deceleration sounds.

  • iRacing setups have been updated.

Porsche 963 GTP
  • iRacing setups have been updated.

Toyota GR86
  • Fixed an issue where opponent cars were missing their side mirrors.

Tracks

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Autódromo Hermanos Rodríguez (Mexico City)
  • (Grand Prix) – Track Rules tab has been updated.

  • (Grand Prix) – At the stadium turns, a 1X will now be awarded for 4-wheels off at the center of the turns.

  • Fixed an issue where the pit wall could appear to vanish based on viewing distances.

  • A variety of track surface decals have been updated from both improved details and better graphics performance.

  • (EV Circuit) – 150m, 100m, and 50m marker boards have been added.

Daytona International Speedway
  • (Road Course) – The outside of Turn 1 is now both a 1X and a gain-time penalty zone.

  • (Road Course) – Track Rules tab has been updated.

Lånkebanen (Hell RX)
  • (Club) – Fixed an issue where lap times were sometimes not counting correctly.

  • (Club) –  Added „Rallycross“ to the track name in the UI.

Sebring International Raceway
  • Fixed a visual issue that could occur with some light poles at certain camera distances.

Von Rookman

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