iRacing News

This is a Patch Release, containing updates, improvements, and fixes for the 2025 Season 1 Release.


[h2]Simulation
[/h2]
Anti-Cheat
- The antiquated versions of EasyAntiCheat (Kamu EAC) files have been renamed and relocated in the iRacing file structure to prevent confusion with the currently active and in use Epic Game EasyAntiCheat (EOS) version of Anti-Cheat software.
- Some additional steps have been taken to remove the previous generation of the AntiCheat system used by iRacing (Kamu/EAC).
- - The iRacing Updater will now ask you if you want to uninstall the old Kamu/EAC derivation of EasyAntiCheat, if you happen to still have it installed and it is associated with iRacing (Game 36). If when prompted you choose "No", it won't ask again in the future. Also note that the old Kamu/EAC installer, and our .bat script that uses it, have been moved to a subdirectory, to distinguish it as being "old" and obsolete.

Race Servers
- Made a change to how the scheduler creates Open Practice Sessions.

Race Control
- Fixed an issue where a Lucky Dog driver could be incorrectly forced to give up spots to lapped cars after a delayed green. We now make sure the EOL penalty isn't applied again when entering the "Two to Green" state a second time.
- Consecutive single file restarts is now a value that may be overridden by the admin "!restart" command.
- - The number of laps gap between cautions used by consecutive single file restarts is now admin overridable with: !csf N
- - The default value is 2 laps gap. Acceptable range is 1-10 laps. Setting to 0 will revert to whatever the default setting for the session is (2).
- - Consecutive single file restart behavior will not happen during green-white-checkered laps (GWC), the normal restart type will be used instead.

AI Racing
- AI Drivers have improved their ability to recover from crashes or going off-course during parade laps.

Graphics
- The mip map tossing algorithm has been updated.
- Fixed a compatibility issue with some OpenXR runtime states.
- Fixed an issue for users with 9th and 10th generation Intel CPUs running on Windows 10 who are receiving random Simulator crashes.


[h2]Cars
[/h2]
GTP
- For the damage model, reduced friction on plank hulls to reduce grounding and snagging.

NASCAR Cup Series Gen 7
- Drafting configurations for running at super speedways have been updated.

Dallara P217
- For the damage model, some material properties have been tuned to reduce sparks from ground contacts.

Dirt Mini Stock
- For the damage model, hyperextension limits have been updated.

Dirt Sprint Car
- (410) - iRacing setups have been updated to suit longer race lengths.

Ferrari 499P
- For the damage model, some parameters for the vehicle plank hull have been adjusted to slightly reduce friction, prevent ground snags on curbs, and reduce bouncing.

Ligier JS P320
- Fixed an issue with some incorrect areas of windshield reflections.

Lotus 79
- For the damage model, some material properties of the sidepod hulls have been updated to reduce sparks.

McLaren 720s GT3 EVO
- For the damage model, slightly increased the break limits for the rear panel.

NASCAR Whelen Tour Modified
- iRacing setups have been updated.

SCCA Spec Racer Ford
- For the damage model, raised the break damage threshold for the rear wheels, and adjusted the bodywork detachment properties to prevent bodywork from bouncing.

Super Dirt Late Model
- iRacing setups have been updated to suit longer race lengths.

Super Late Model
- iRacing setups have been updated.


[h2]Tracks
[/h2]
Circuit de Nevers Magny-Cours
- Added a slowdown to prevent racers from using the pit exit to cut Turn 1.

Huset's Speedway
- Updated the track parameter initializations, which dries and roughs up the apron, making it less tempting to drive on, and fixes an issue where some loose dirt was missing from track initialization.

Kevin Harvick's Kern Raceway
- (Dirt Mini Oval) - Time penalties have been adjusted for racers attempting to gain time below the yellow hose.

Misano World Circuit Marco Simoncelli
- (Grand Prix & Grand Prix 2007) - The slowdown penalty for straight-lining the Turn 1-2 complex through the gravel has been increased.

Silverstone Circuit
- (International) - Added a slowdown to prevent racers from using the runoff in the final corner for extra speed at the start of qualifying.

Sonoma Raceway
- Fixed an issue where the race servers could crash if an event at this track using Short Pace Laps and Rolling Starts included more than 60 participants.

Virginia International Raceway
- (Grand Course & Full Course) - Added a slowdown to prevent racers from buzzing Barney's cousin in the South Course pit lane.

[Legacy] Silverstone Circuit - 2008
- (Grand Prix, Historic Grand Prix, & Southern) - Adjusted slowdown penalty at Club corner.

2025 Season 1 Patch 1 Release Notes [2025.01.08.01]

This is a Patch Release, containing updates, improvements, and fixes for the 2025 Season 1 Release.


Simulation

Anti-Cheat
- Updated the "InstallEOSAntiCheat.bat" script file so that it can be correctly run using right-click > "Run as Administrator". The script will now also pause at the end so you can see its messaging.

Weather
- Fixed an issue where participants joining a Session after it had been initialized could have slightly different track surface water heights in some areas of the track. Differences were minimal, but it could be noticeable when joining an event with a drying track state.

Dynamic Track Model
- For the debris system, adjusted the parameters for vehicle bodies picking up debris, including better accounting for smaller body shapes, pickups being scaled by speed, and implementing a maximum amount of debris for vehicle bodies depending on chassis size.
- For the debris system, improved the ability for debris to adhere and shed from vehicle bodies.
- For the debris system, the algorithms for flinging debris have been updated.
- For the debris system, improved the calculations for generating gravel dust by tires.
- For the debris system, normalized the color for gravel dust to improve its overall tone in all environments.

Dirt Racing
- For Dirt Oval Racing, apron areas should now be a bit rougher to drive on.

AI Racing
- Fixed an issue where AI Vehicles could lose the ability to support MGUK-only driving if the host leaves the Session.

Audio
- Support has been added to XAudio to allow single channel audio hardware, including many Bluetooth headsets.
- The number of sounds that can be loaded by the Simulation has been increased. This provides greater support for third-party sound packs.
- Fixed an issue where the volume selected via the user interface was not being saved to the "app.ini" file.

Pit Lane
- Auto Fuel will not enable itself if a pitstop is in progress. This fixes an issue where it was briefly enabling itself and modifying fuel fill values during driver swaps in team racing.

Spotter/Crew Chief
- The Italian Spotter Pack for Renzo A. Olivieri has been updated.
- Fixed a grammatical error with the spotter message for having major engine power loss.

Active Reset
- Fixed an error in the way detached car parts were being tracked while resetting. Hanging and detached car parts should now be restored correctly to their saved state.


Cars

BMW M2 CSR
- Fixed an issue with the reflectivity of the rollbar and digital display.

Ferrari 499P
- Fixed an issue where reverse wheelspin under braking was incorrectly causing electrical energy regeneration when a single wheel locks up. This fix does not lessen how punishing wheel lockups are, particularly in the wet, but does prevent the motor generator from driving the wheels in the reverse direction.

Ligier JS P320
- For the damage model, the nose hull has been stiffened slightly to prevent submarining on contact.

Porsche 718 Cayman GT4 Clubsport MR
- For the damage model, adjusted the scrape damage progression thresholds for parts of the rear.

Super Formula SF23 - Honda
- For the damage model, a tuning pass has been completed which fixed a pivot-point for the left sidepod hull, increased the hull dilation for the diffuser and floor to help prevent ground snags, slightly lowered floor friction, and slightly strengthened wheels.

Super Formula SF23 - Toyota
- For the damage model, a tuning pass has been completed which fixed a pivot-point for the left sidepod hull, increased the hull dilation for the diffuser and floor to help prevent ground snags, slightly lowered floor friction, and slightly strengthened wheels.

[Legacy] NASCAR Truck Chevrolet Silverado - 2008
- Fixed an issue where dashboard gauges could appear blank/white.


Tracks

Cadwell Park Circuit
- The pit entry tire barrier is now a fully solid object.

Charlotte Motor Speedway
- A floating sawtooth curb at the back chicane has been re-grounded.

Lime Rock Park
- Fixed an issue where some treelines had some excessively dark trees.

Sebring International Raceway
- Fixed an issue where some tire stack objects were the wrong physical size.

This is a Hotfix Release, containing critical fixes and some updates for the 2025 Season 1 Release.



[h2]Simulation[/h2]
[h3]Race Control[/h3]
- Fixed a critical issue where custom sectors could not be set with the Active Reset feature.

[h3]Dynamic Track Model[/h3]
- Debris particles may now be spawned along the entire width of the tire carcass instead of only in the center of the contact patch.
- Some parameters for gravel, mud, and dust debris have been updated.
- Fixed an issue with the updated debris system where some particles were not allowed to interact with the environment during their lifetime.

[h3]Dirt Racing[/h3]
- Fixed a critical issue where loose dirt at Dirt Oval tracks was completely invisible in Replay cameras.

[h3]AI Racing[/h3]
- Fixed a critical issue where AI Drivers would refuse to grid for Oval events using Timeline Weather.
- - Developers learned that this was a form of protest by the AI Drivers, and their demands for new umbrellas during their off-track time have been satisfied. AI Drivers will once again race on Ovals when Timeline Weather is selected.

[h3]Graphics[/h3]
- SSAO processing along shape edges has been improved.
- Fixed some display issues with some of the rear brakelights for Fred's pace cars.
- Fixed an issue where some of the 3D foliage was attempting to divide by zero. Not even Mother Nature can perform such a mathematical impossibility!


[h2]Cars[/h2]
[h3] Supercars Gen 3[/h3]
- Drafting distances and corresponding effects have been adjusted.

[h3] [Legacy] NASCAR Xfinity Class Cars[/h3]
- Fixed an issue where the dashboard gauges could appear blank/white.

[h3]Acura ARX-06 GTP[/h3]
- Aerodynamic offsets have been updated.

[h3]Acura NSX GT3 EVO 22[/h3]
- Fixed an issue where the paddle shifters would not rotate with the wheel for female drivers.

[h3]BMW M2 CSR[/h3]
- Very distant LODs have been updated to correctly hide cockpit interior completely.
- Fixed an issue where pit crew and equipment could have the incorrect colors applied when using an official BMW livery.
- Fixed a texture mapping issue on the left-side fuel windows.
- Fixed an issue where the driver's seat could disappear at certain camera distances.

[h3]Dallara P217[/h3]
- Fixed an issue with toe measurements in the garage.

[h3]Ferrari 499P[/h3]
- For the damage model, fixed an issue where too much energy from some vehicle body impacts was being transferred to the engine.

[h3]Mini Stock[/h3]
- iRacing setups have been updated.

[h3]Ray FF1600[/h3]
- Engine sounds for chase and exhaust cameras have been improved.

[h3]SCCA Spec Racer Ford[/h3]
- For the damage model, reduced the amount of energy damage transferred from the nose hull to the engine.

[h3]Supercars Chevrolet Camaro Gen 3[/h3]
- For texture mapping, the rear windshield banner has been added, and the grille has been moved to an independent texture.
- The perspective and angle on vehicle mirrors has been adjusted.

[h3]Supercars Ford Mustang Gen 3[/h3]
- Fixed an issue where the wiper knob rotated incorrectly.

[h3][Legacy] NASCAR Nationwide Chevrolet Impala - 2012[/h3]
- Fixed an issue where the dashboard gauges could appear blank/white.

[h3][Legacy] Riley MkXX Daytona Prototype - 2008[/h3]
- Fixed an issue where headlight flares were appearing in the middle of the car.


[h2]Tracks[/h2]
[h3]Mid-Ohio Sports Car Course[/h3]
- Updated some brakemarkers.

[h3]Thruxton Circuit[/h3]
- Some environment textures have been updated.

This is a Hotfix Release, containing critical fixes and some updates for the 2025 Season 1 Release.


iRacing

Account
- We have redesigned the My Account page as a centralized location to manage key aspects of your iRacing account. The My Account section is designed to keep everything you need to manage your subscription, balance, and promotions in one place, with easy navigation and secure interactions. You can now find the following section here:
- - Account Information: View and update details like your subscription status, billing address, and customer ID.
- - Account Balance: Monitor your iRacing Dollars and Credits, toggle the use of credits in sync with your cart, and check when your credits expire. Additional features here include: Send a Gift or Add Funds, Buy a Gift Card, Refer a Friend, and Check a Promo Code.
- - Account History: The Account History section provides a detailed overview of your past transactions and activities, offering a transparent and organized way to review your iRacing orders and gift transactions. Features include: the ability to display a list of purchases, gifts received, and gifts sent. Each transaction is listed in a row for quick and easy understanding of the data. A View Order button allows you to drill down into the specifics of any transaction.



Simulation

Dynamic Track Model
- Improved the calculations for track debris accumulated and thrown by opponent vehicles.
- Improved the throwing and spreading algorithm, especially for gravel, for a more realistic and uniform distribution.
- Fixed a critical issue where some developer code for the Debris Refresh remained available for adjustments by drivers.
- Fixed an issue where the new debris type, gravel and mud, were not being cleared correctly between Sessions if the option for cleaning the track between Sessions was enabled for an event.

Weather
- Values for rain on track surfaces have been smoothed, so puddles are more visible.

AI Racing
- Fixed an issue where some AI Drivers in Formula cars believed themselves to be indestructible and unaffected by damage sustained - they would simply not pit for repairs and just keep racing even when heavily damaged. It may benefit some Members to take note of this corrected behavior.
- Fixed an issue where AI Drivers did not understand Fast Repairs and would refuse to pit to fix damage whenever Fast Repairs were available. They now understand these are good, and should use them when needed.

Graphics
- Fixed an issue where Anti-Aliasing settings were incorrect after upgrading from an older "renderer.ini" file.


Cars

NASCAR Cup Series Gen 7
- iRacing setups have been updated.

NASCAR Xfinity Series
- iRacing setups have been updated.

Supercars - Gen 3
- Fixed an issue where the pit crews were unable to correctly switch your Tire Compound during a pit stop. They now appropriately know which compound is which! The tire compound dashboard indicator light now also functions perfectly.

Acura NSX GT3 EVO 22
- Fixed an issue where the rear rainlight was not appearing correctly on undamaged cars.

BMW M8 GTE
- Lightmaps have been updated to fix an issue where the digital display appeared to be “off” all the time.

Ferrari 499P
- Side damper deflections have been added to the Chassis tab of the Garage - it was possible to adjust the heave elements in a way that pushed side damper deflections out of range.
- ID lights have been changed to white.
- Fixed an issue where the MGU value did not match the MGU dial.
- Fixed an issue with the deploy mode rotary knob being misaligned.
- Fixed an issue with the strategy rotary knob label.

Legends Ford '34 Coupe
- iRacing setups have been updated.

Porsche 963 GTP
- iRacing setups have been updated.

Supercars Ford Mustang Gen 3
- The Ford logo on the nose has been updated.

[Legacy] NASCAR Cup Chevrolet Impala COT - 2009
- Fixed an issue where all dashboard gauges were blank white.


Tracks

Circuit Zolder
- Track marshals, photographers, cameramen and safety vehicles have been deployed.

Huset's Speedway
- Barney, Legendary Flagman, has arrived at this track!
- Treeline textures have been updated.
- Tree placement has been improved.

Mid-Ohio Sports Car Course
- Some cones have been added to brake markers.

New Hampshire Motor Speedway
- Added pit exit aid lines to Road configs, and blue lines and cones added to the configs that use the infield in Turn 1.
- Trackside banners have been updated.
- Tree placement and colors have been improved.
- Some unintended wall openings have been blockaded.
- Fixed an issue where a tire barrier was protruding onto the track in Turn 3.
- Fixed an issue where stretched marbles textures could appear on some track walls.

The iRacing 2025 Season 1 Release Build has arrived! This release includes new content, features, improvements, and fixes for 2025 Season 1, which officially starts on December 17th at 0000 UTC! The iRacing garage expands with five new bays for: Acura NSX GT3 EVO 22, BMW M2 CSR, Ferrari 499P, Supercars Chevrolet Camaro Gen 3, and Supercars Ford Mustang Gen 3. The BMW M2 CSR is being released as new FREE content to all iRacing Members! iRacing is also excited to offer two new tracks: Huset's Speedway and Thruxton Circuit. The Track Art Team has also completed a full overhaul of the classic New Hampshire Motor Speedway, bringing its look and feel up to modern standards.

The Test Drive Service which is available whenever iRacing is down for maintenance has been re-built from the ground-up, is integrated seamlessly with the iRacing application, and is now known as Demo Drive! Our graphics and physics developers have tag-teamed an outstanding upgrade to the debris system which now includes mud and gravel, and all debris types are now easier to see and impact racing much more realistically. We are pioneering some upgrades to the iRacing netcode system with this Season Release, including improving the experience for a lagging driver as well as everyone else in the race with them. The lighting for the entire iRacing world has undergone an improvement which increases contrast and reduces some excessive brightness. Your spotter will now inform you if any damage you receive is going to have a negative impact on an aspect of your vehicle performance. AI drivers have also now been trained in the art of headlight flashing when passing.

Our hydromancers have prepared the Formula Vee for rain racing, and ALL FIVE new cars come equipped with a unique set of rain tires. AI Racing systems have been programmed and implemented on six cars, including: Acura NSX GT3 EVO 22, BMW M2 CSR, Ferrari 499P, Supercars Chevrolet Camaro Gen 3, Supercars Ford Mustang Gen 3, and Williams FW31. AI Drivers have mastered Thruxton Circuit and two of New Hampshire’s Road Courses. And last but not least our vehicle dynamics team has polished and included over 400 new and updated vehicle setups to give you the optimal driving experience using any car at any track. Prepare your racing rig for 2025 and get hyped for iRacing 2025 Season 1!


Season highlights include:

• Acura NSX GT3 EVO 22
  
• BMW M2 CSR [FREE!]
  
• Ferrari 499P
  
• Supercars Chevrolet Camaro Gen 3
  
• Supercars Ford Mustang Gen 3
  
• Huset's Speedway
  
• Thruxton Circuit
  
• New Hampshire Motor Speedway (2024 Art Upgrade)
  
• Demo Drive
  
• Debris Refresh
  
• Netcode Improvements
  
• Specular Lighting Upgrade
  
• Spotter Damage Effects Report
  
• AI Flashing Behavior
  
• Formula Vee and ALL FIVE new cars are all Rain-Ready
  
• SIX new cars for AI Racing (Acura NSX GT3 EVO 22, BMW M2 CSR, Ferrari 499P, Supercars Chevrolet Camaro Gen 3, Supercars Ford Mustang Gen 3, and Williams FW31)
  
• THREE new tracks and configs for AI Racing (Thruxton Circuit, New Hampshire Motor Speedway -Road Course & Road Course with North Oval)
  
• Over 400 happily crafted iRacing vehicle setups
  

Visit our 2025 Season 1 features page here: https://www.iracing.com/seasons/2025-s1/


Full 2025 Season 1 Release details can be found on the iRacing Forums here:
https://forums.iracing.com/discussion/71285/2025-season-1-release-notes-2024-12-09-03#latest