This Hotfix Release contains critical fixes for issues with the 2025 Season 3 Release.

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• Fixed a critical issue with the Moza API that was causing the Simulator to crash after running for nearly 3 hours.

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• Improved the pit limiter light implementation.

• MPG has been added back onto the digital display.

This Patch Release contains updates and fixes for the 2025 Season 3 Release.

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- 360Hz and Wheel LFE APIs have been re-enabled.

- Fixed a memory instability that would cause customers with Moza devices to crash out of the Simulator after 2 hours.

- Fixed an intermittent crash that would sometimes affect certain Fanatec wheels.

- Fixed an issue where an invasive species of super bright grass had begun sprouting at Rallycross tracks. Groundskeepers have eradicated it, and will remain on high alert for the next week.

- Two new boolean variables, "PitRepairNeeded" and "PitOptRepairNeeded", have been added which will be true when the user's car takes damage and needs mandatory or optional repairs.

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- Updated the low fuel warning clears to be momentary presses. The trigger point for the low fuel warning is now adjustable in the garage screen.

- - The low fuel warning clear button is also now enabled for the BMW M Hybrid V8.

- Base weight has been increased by 20 kg and ride height rules have been updated to meet the latest real world technical specification.

 - - Target brake bias has been moved rearwards for improved turn-in response.

- iRacing setups have been updated.

- Adjusted the ride height reference locations and suspension installation to allow for reduced bump stop contact and better ride quality. 

- iRacing setups have been updated.

- Nose mounts are now replaced whenever front wing damage is repaired.

- Nose mounts are now replaced whenever front wing damage is repaired.

- Updated the textures, templates, and patterns to reflect the B-pillar and rear-end adjustments.

- Damage visual effects have been updated.

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- Fixed an issue where floating crowds would appear when track detail was lowered.

- Fixed an issue where floating crowds would appear when track detail was lowered.

- A missing track rule has been updated.

This Hotfix Release contains critical fixes for issues with the 2025 Season 3 Release.

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• The recently added alert warning to indicate high CPU usage has been adjusted to only display if the system has an active network alert AND the CPU alert level would be high (red in the system meter).

• We have temporarily disabled Moza 360 Hz and Wheel LFE effects.

  • There is a critical issue we are investigating with Moza developers that can cause the Simulator to crash after about 2 hours of operation. Once we have a stable fix, we will release it and re-enable this feature in a future Patch.

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• Removed some defunct development code.

This Patch Release contains updates and fixes for the 2025 Season 3 Release.

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• Fixed an issue where some Race Results would display a customer's previously selected Flag instead of the Flag they had selected at the time of the event.

  • Results preserve the flag participants were flying at the time of event entry as historic data.

  • This was especially noticeable for customers attempting to use our recently added flags for the countries of the United Kingdom: England, Northern Ireland, Scotland, and Wales.

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• Adjusted the distribution of iRating and ttRating values that define Division separation for all Official Racing and License Classes for improved competition at all levels.

  • We had tuned the division distribution slightly with the start of 2025 Season 3, and we missed the mark by a bit. This second adjustment should clean things up and improve Ranked participation.

  • With the deployment of this Patch, all members will be redistributed into Divisions for all licenses classes, just as is done seasonally before Week 1. This redistribution will be completed based on drivers’ iRating, ttRating, and Rookie status as they were a few weeks ago when divisions were first established during the 2025 Season 3 season transition. Drivers are not being redistributed based on their current iRating, ttRating and Rookie status. All previous 2025 Season 3 records, stats, and results will follow their owners into their new Division.

• Fixed an issue where some damp to wet tracks could have blocky patterns appear at dusk.

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• GT3 Car Class BoP has been tuned for improved realism.

• iRacing setups have been updated.

• Fixed an issue where brake migration was being applied at half of the stated value. The ramping reference location has also been adjusted.

  • At 100% pedal input, the brake bias is equal to the basic brake bias setting.

  • At 0% pedal input, the brake bias is equal to the basic brake bias setting plus the brake migration gain.

  • Please note, to adjust existing setups the recommendation is to halve the current brake migration setting and increase brake bias forwards by 1-1.25%.

• iRacing setups have been updated.

• iRacing setups have been updated.

• Brake Migration adjustment has been added to this car to bring it into line with the other GTP class cars.

• Fixed an issue where the incorrect car model could appear in UI images related to short oval tracks.

• Updated the brake migration tooltips for improved clarity.

  • Note, brake migration was already working correctly in this car and thus no physics changes have been applied nor is it necessary to adjust setups for this car.

• Restored the rear view mirror to its proper place. The vandals responsible for its mislocation have been handed over to the authorities.

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• Track surface parameters have been updated slightly.

• Added a missing ceiling light to the main grandstand.

• The pace car speed for all track configurations has been updated. Fred, Flawless Wheelman, now leads the field at the following speeds:

  • International Circuit and GT Circuit: 90 KPH

  • All other configs: 80 KPH

• Some ARMCO outside of pit road has been restored to the material plane.

• The gain-time penalty for cutting the Inner Loop has been increased.

This Patch Release contains updates and fixes for the 2025 Season 3 Release.

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• Fixed an issue where users could become invisible to others in the SIM after disconnecting and reconnecting.

• Fixed an issue with how tires play with wet grass and gravel friction.

  • This was also causing formula cars to snap and spin easily on wet gravel while at full-throttle.

• Fixed an issue where Race Restarts could get stuck on One-To-Green.

• Reduced the amount of visual popping that could be seen on many 3D curbs as a camera changed distances from them.

• Many track grass textures have been updated to fix some splotchy patches and crab grass.

• For force feedback, softened the profile of rumble strips in an effort to reduce the audible noise they produce in the 360Hz force feedback channel.

• LFE system improvements for force feedback have been added, including:

  • Moza wheels now have their master volume set -15 dB lower.

  • Fanatec wheels now have their master volume set +5 dB higher.

  • Road texture effect now has its default gain set to -30 dB.

  • Drive shaft effect has been turned off and removed from the app.ini file.

  • These changes should rebalance the mix for Moza wheel users, greatly reducing the audible noise the wheel produces when the Wheel LFE system is enabled. If you still find it is too loud, you can further reduce the volume in the Misc. tab of the Sim options, using the master volume slider in the Wheel LFE settings.

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• Fixed an issue where the vehicle systems could not be shut-off while over pace speed.

• These cars now use the low oil pressure light and the oil and water temperature gauges when at Superspeedway tracks.

• iRacing setups have been updated.

• Anti-roll bar blade positions are now pit service adjustable.

  • ARB blade changes are performed simultaneously with the rest of pit service and take 25 seconds for one ARB blade change or 50 seconds to change both ARB blade positions during a pitstop.

• Adjusted the exterior car lights to illuminate properly during day-time rains.

• Adjustments to Brake Migration and Brake Bias Target may now be mapped to controls while in-car.

• Adjustments to Brake Migration and Brake Bias Target may now be mapped to controls while in-car.

• Fixed an issue where the wheel vinyl toggle wasn't working correctly.

• Updated the position of the nametag on the no-post version of the Oval aeroscreen.

• Increased the clutch inertia to resolve an issue where when using auto-shift on the 6th to 7th gearshift, the clutch would become numerically unstable and explode the drivetrain.

• Adjusted the graphical display of left and right side fenders to better match those of the Chevrolet.

• Fixed an issue where the pit limiter and warning screens wouldn't illuminate properly on the digital dashboard.

• Adjustments to Brake Migration and Brake Bias Target may now be mapped to controls while in-car.

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• Placed an illuminated sign on the front grandstand.

• Lightmaps have been updated and improved.

• Lightmaps have been updated and improved.

• Tucked the terrain in behind the SAFER barrier at Turn 1 and Turn 2.

• An improperly pitched tent has been removed. Its owner has been enrolled in remedial tent pitching classes for the next two weeks.

• Removed some ads around the dragstrip.

• A levitating RV has mysteriously vanished.

• The weekend haulers have been better positioned.

• Some floating brake markers have been properly attached to fixtures.

This Patch Release contains updates and fixes for the 2025 Season 3 Release.

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• Improved the camera view centering behavior for the Helmet and Firesuit.

• Fixed an issue where the Paint Kit camera’s view would reset the camera pitch whenever loading a new car.

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• Fixed an issue where AI Drivers could go brain-dead if they remained on gravel or mud surfaces for too long. It was a very traumatic experience for the AI community.

• The Connection Black Flag rule may now be enabled in Hosted Sessions!

  • When enabled, the Connection Black Flag rule functions exactly as it does for Official Sessions in the Hosted Session. Drivers with intermittent and unstable connections to the race server may receive a black flag, and be sent to pits until their connection improves.

• Fixed an issue with popping visual artifacts where some 3D curbs were being rendered with a lower level-of-detail resolution than they should have been based on camera distance. This was especially noticeable at The Bend.

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• Ride height rules are now specific to each available tire type.

• iRacing setups have been updated.

• iRacing setups have been updated.

• Ride height rules are now specific to each available tire type.

• Fixed an issue with standing starts where these cars could roll out of their starting stalls, even with the handbrake being applied.

• Moved the handbrake from the rear brakes to the front brakes for use as a standing start aid like the rest of the TCR class.

• Fixed an issue with the tire carcass temperature color coding in the digital display.

• Fixed an issue with the fuel level warning on the digital display.

• Ride height rules are now specific to each available tire type.

• For the digital dashboard, tire temperature digits now change to black when the yellow background warning is active.

• The front camber limit has been increased to -3.5.

• The Triarsi paint scheme has been updated.

• iRacing setups have been updated.

• Ride height rules are now specific to each available tire type.

• iRacing setups have been updated.

• Ride height rules are now specific to each available tire type.

• iRacing setups have been updated.

• Ride height rules are now specific to each available tire type.

• Ride height rules are now specific to each available tire type.

• Braking stability has been improved.

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• A second functional scoreboard has been added to the front grandstand.

• Crowds have been adjusted to better fit the stands.

• Night lighting has been enabled at this track!

• Fixed an issue where flagpoles could visually pop in and out of view as cameras changed distances from them.

• Halo support has been added to pit lights.

• Night lighting has been enabled at this track!

• Fixed an issue where the crowds would remain even if the grandstands were disabled in graphics options.

• Exhumed a group of crowd members that were buried in the ground. They may have some lingering effects of zombification, but nothing a good night’s rest won’t fix!

• Night lighting has been enabled at this track!

• Night lighting has been enabled at this track!

• Some crowds have been repositioned.

• A fan was found on a roof. He has been asked to leave the premises, as this was not allowed.

• The Acceleration Club building is no longer invisible.

• Night lighting has been enabled at this track!

• Night lighting has been enabled at this track!

• Fixed an illumination issue with the cactus flagstand.

• Cacti have been updated to be more visually appealing, but still spikey.

• Some floating cars have been removed.

• Night lighting has been enabled at this track!

• Fixed an error with the gain-time checkpoints at Turn 13.

• Fixed a handful of issues where various objects could visually pop in and out of view as cameras changed distances from them.

• Updated the sign at the hotel section of the pit garage complex.

• Some floating trucks have been returned to the earth.

• Removed some fences that had occupied some picnic tables. They are once again available for guests.

This Hotfix Release contains critical fixes and a few updates for the 2025 Season 3 Release.

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• Fixed a critical issue where Race Servers would not allow drivers to join Ranked Official events more than once.

• Expanded the size restriction for the iRacing updater buffer - 256K is no longer sufficient!

• - - In order for this update to work, you’ll need to update only your Required files when prompted for downloading an update - this will include this update. Then, you can download any or all Optional downloads without issue.

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• iRacing setups have been updated.

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• Fixed a critical issue where this track would fail to load.

The iRacing 2025 Season 3 Release Build has passed tech inspection and is ready to roll! This release has new content, features, improvements, and fixes for 2025 Season 3, which officially starts on June 17th at 0000 UTC! The iRacing vehicle garage expands with three new bays for three brand new cars: Ferrari 296 Challenge, and a pair of NASCAR Gen 4 cars straight from 2003, the Chevrolet Monte Carlo and the Ford Taurus! The entire GT3 Class Cars has received a multifaceted performance, tires, and physics overhaul, as well as dramatic performance updates for the NASCAR Cup Series Gen 7 Class Cars, and the Dallara IR18. The iRacing overworld map adds one additional massive track, Shell V-Power Motorsport Park at The Bend, near Adelaide, Australia. The Track Art Team has also completed multiple full art overhauls of TWELVE NASCAR circuit tracks including: EchoPark Speedway (Atlanta), Indianapolis Motor Speedway, Iowa Speedway, Lime Rock Park, Lucas Oil Indianapolis Raceway Park, Martinsville Speedway, Michigan International Speedway, Nashville Superspeedway, Phoenix Raceway, Pocono Raceway, Richmond Raceway, and Talladega Superspeedway.

iRacing is proud to add direct paint kit support for vehicles with multiple body types, including the Dallara IR18 and the new NASCAR Gen 4 stockcars. Adaptive AI has been expanded and is now available for use in Hosted Racing Sessions, as well as AI Seasons. 9 completely new AI Seasons have also been added including IMSA, NASCAR, Production Car Challenge, and more! This update also fully sunsets Clubs and introduces the Flags feature - select and wear your colors proudly! Support for a new VR technology, Fixed Foveated Rendering, has been added for Open XR which can improve rendering speed. A host of updates and tuning improvements have been added to the Connectivity Black Flag System, thanks to the data we have been collecting. We have also added support for 360 Hz Force Feedback for several more devices!

This update also unlocks rain racing for FIVE formula cars, including: Dallara IR18, Lotus 79, Skip Barber Formula 2000, and both Super Formula SF23 - Honda & Toyota! AI Drivers have expanded their racing skills and may now pilot four new cars, including: Audi R18, Ferrari 296 Challenge, Porsche 919, and Silver Crown. AI Drivers have also trained for racing at eleven new track configs, including: Daytona International Speedway - Moto - 2008 & Short - 2008, Iowa Speedway - Oval, Richmond Raceway, and all seven configs at Shell V-Power Motorsport Park at The Bend.

Season highlights include:

• Ferrari 296 Challenge

• NASCAR Gen 4 Chevrolet Monte Carlo - 2003

• NASCAR Gen 4 Ford Taurus - 2003

• Physics Overhauls for GT3 Class Cars, NASCAR Cup Series Gen 7, and Dallara IR18

• Shell V-Power Motorsport Park at The Bend

• TWELVE NASCAR Track Art Overhauls (EchoPark Speedway (Atlanta), Indianapolis Motor Speedway, Iowa Speedway, Lime Rock Park, Lucas Oil Indianapolis Raceway Park, Martinsville Speedway, Michigan International Speedway, Nashville Superspeedway, Phoenix Raceway, Pocono Raceway, Richmond Raceway, Talladega Superspeedway)

• Car Body Support has been added to the Paint Kit

• Adaptive AI Racing for Hosted Sessions

• Adaptive AI Racing for AI Seasons

• Brand new Pre-Made AI Seasons

• Flags now fully replace Clubs

• Fixed Foveated Rendering for Open XR

• 360 Hz Force Feedback for more devices

• Connectivity Black Flag System Updates

• High CPU Usage Warning

• FIVE additional cars are Rain-Ready! (Dallara IR18, Lotus 79, Skip Barber Formula 2000, Super Formula SF23 - Honda, and Super Formula SF23 - Toyota)

• AI Racing is now available with FOUR new cars! (Audi R18, Ferrari 296 Challenge, Porsche 919, and Silver Crown)

• AI Racing is now available at ELEVEN new track configurations! (Daytona International Speedway - Moto - 2008 & Short - 2008, Iowa Speedway - Oval, Richmond Raceway, and Shell V-Power Motorsport Park at The Bend - ALL SEVEN CONFIGS)

• Hundreds of caringly crafted new vehicle setups

Visit our 2025 Season 3 features page here:

https://www.iracing.com/seasons/2025-s3/

Full 2025 Season 3 Release details can be found on the iRacing Forums here:

https://forums.iracing.com/discussion/80339/2025-season-3-release-notes-2025-06-10-01

This Patch Release contains updates and fixes for the 2025 Season 2 Release.



Anti-Cheat- The “InstallEOSAntiCheat.bat” batch file will now always install/repair the Anti-Cheat system for iRacing, regardless of if it thinks it's already installed.

Race Control- The Connection Black Flag system has been updated with slightly increased sensitivity, improved accuracy, and slightly reduced spotter messaging frequency.
- - These changes have been made after collecting and analyzing extensive data from your racing sessions!

Tire Model- Fixed an issue where tire set limitations of all types were not being scrapped once a Session was declared Wet. This was an issue for both Race Rules restrictions and Tire Set restrictions.

Telemetry- Removed the leading zero on Safety Ratings in the Session string.



<Car Class> ARCA Series Class Cars- iRacing setups have been updated.

<Car Class> NASCAR Cup Series Next Gen Class Cars- For the damage model, the rear panels have been strengthened slightly.

<Car Class> NASCAR Truck Series Class Trucks- Fixed an issue where damage to the front-end was causing aero balance to incorrectly shift forward. It now correctly moves rearward.

<Car Class> Supercars Gen 3 Series Class Cars- Increased the aero balance shift caused by sustaining front-end damage

BMW M2 CSR- Upshifting has been improved to be a bit smoother.



Homestead Miami Speedway- Fred, Flawless Wheelman, has been retrained to avoid driving straight through the extended wall at pit entry with the pace car.
- Fixed an issue where some fans were so loyal that they would remain floating in the sky, even if the grandstands were removed via object details settings.

Mount Washington Auto Road- Fixed an issue where the “Are You Afraid of The Dark?” Award was not being granted properly.

Road America- The barn has been updated with a silo and new banner ads.

This Patch Release contains updates and fixes for the 2025 Season 2 Release.



Graphics

• Fixed an issue where some graphical artifacts could appear on carbon fiber surfaces in the cockpit.
  
• Fixed a rare simulator crash issue that could occur during texture allocation in memory.

Spotter/Crew Chief

• Updated Spanish spotter calls.

<Car Class> ARCA 2025 Series

• Performance penalties for damaged rear wheel states have been significantly increased.

<Car Class> GT4 Class Cars

• Fixed an issue where the LF tire would take much longer to change than the other three.
  
• - - Total time to change all four tires remains the same as before.

<Car Class> Supercars - Gen 3

• Fixed an issue where damaged aerodynamics were incorrectly adding downforce.
  
• Aerodynamic damage penalties and repair processes have been updated.

Dirt Late Model

• (ALL) - Fixed an error in metric/imperial conversions for some values displayed in the garage, including Packer, Deck height and J-Bar heights.

Dirt Modified

• (Both) - Fixed an error in metric/imperial conversions for J-Bar heights.

Dirt Micro Sprint Car

• (ALL) - Fixed an error in metric/imperial conversions for stagger and wheel spacing.

Dirt Midget

• Fixed an error in metric/imperial conversions for wheel spacing.

Dirt Sprint Car

• (ALL) - Fixed an error in metric/imperial conversions for wheel spacing.

Dirt Sprint Car Non-Winged

• (BOTH) - Fixed an error in metric/imperial conversions for wheel spacing.

Dirt UMP Modified

• Fixed an error in metric/imperial conversions for J-Bar heights.

Global Mazda MX-5 Cup

• Aerodynamic damage penalties and repair processes have been updated.
  
• - - The drag and aerodynamic penalties for damaged versus detached pieces have also been tuned.

[Legacy] Dallara IR-05

• Fixed an issue where the nose front wing would not be repaired or replaced correctly during pitstops.