STEAMYDATA

iRacing — patch notes and updates

Stored observation / content update:

Dated developer announcements recorded from Steam. Open the source for the complete update.

UpdateDateExcerpt / source
2026 Season 2 Patch 4 Release [2026.05.04.02]2026-05-062026 Season 2 Patch 4 Release Notes \—---------------------------------------------------------Patch Release:This release is a Patch, focusing on additional updates, improvements, and fixes for the 2026 Season 2 Release. Simulator—---------------------------------------------------------GeneralAfter installing this Patch, customers with NVidia GPUs should expect a Windows Security popup related to allowing public and private network access for iRacing.This is appearing as a result of preparations for the release of the Apple Vision Pro device support, coming soon!If you do not have nor intend to use an Apple Vision Pro device, you can disrega
2026 Season 2 Patch 3 Release [2026.04.21.01]2026-04-222026 Season 2 Patch 3 Release Notes \—--------------------------------------------------------- Patch Release:This release is a Patch, focusing on additional updates, improvements, and fixes for the 2026 Season 2 Release. Simulator—--------------------------------------------------------- AI RacingAI Drivers have improved their racing skills with the Nissan GTP ZXT. User InterfaceFor the Throttle/Brake Widget, an ABS line highlight has been added.Fixed an issue where performance could be adversely affected by the Results tab.Fixed an issue where UI elements were not positioned correctly after loading into VR on certain headsets and with certa
2026 Season 2 Patch 2 Release [2026.04.06.02]2026-04-072026 Season 2 Patch 2 Release Notes \---------------------------------------------------------Patch Release:This release is a Patch, focusing on additional updates, improvements, and fixes for the 2026 Season 2 Release. iRacing Launcher---------------------------------------------------------Paint KitThe Fanatec sponsor logos have been updated. Simulator---------------------------------------------------------AI RacingFixed an issue where AI Drivers could fail to post Qualifying times if the player advanced the event too quickly. The AI Drivers now operate at simulated lightning speed, and will post Qualifying times.In AI Solo events, when th
2026 Season 2 Patch 1 Release2026-03-16======================================================================== 2026 Season 2 Patch 1 Release Notes \—--------------------------------------------------------- Patch Release:This release is a Patch, focusing on additional updates, improvements, and fixes for the 2026 Season 2 Release. iRacing Launcher—--------------------------------------------------------- Paint ShopFixed an issue where the artwork for the new sponsors we added for 2026 Season 2 were not showing up on vehicles. This is fixed, and the logos are now appearing correctly. The following new sponsors were added to the Paint Kit:Asetek RacingGood RanchersHolley Performanc
2026 Season 2 Release2026-03-102026 Season 2 Initial Release Notes \---------------------------------------------------------The iRacing 2026 Season 2 Release Build is revving its engine and waiting for the green to drop! This is one of four major annual releases for iRacing, and adds new content, features, upgrades, and more fixes than would fit in an iRacing Arcade campus grid. iRacing 2026 Season 2 officially starts on March 17th at 0000 UTC!iRacing adds two new garage bays to the world’s best racing simulator, featuring the Audi RS3 LMS Gen2 TCR and the NASCAR Truck RAM. The legendary street course, St. Petersburg Grand Prix is now also fully available for racing. Barb
2026 Season 1 Patch 3 Release Notes [2026.02.02.02]2026-02-032026 Season 1 Patch 3 Release Notes \---------------------------------------------------------This Patch Release contains updates and fixes for 2026 Season 1. iRacing---------------------------------------------------------SessionsA new User Preference has been added, which automatically launches a Session for which you are registered once it becomes available.You can enable this auto-launch feature in Settings > Preferences. Steam MembersImproved the purchase flow for our iRacing Members who use Steam.Fixed navigation errors when clicking payment-related buttons and streamlined the process of making purchases through Steam.Customers are no l
2026 Season 1 Patch 2 Release2026-01-05This Patch Release contains updates and fixes for 2026 Season 1. iRacing Simulator---------------------------------------------------------AI RacingAI 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. GraphicsThe 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. TelemetryThe secondary incident limit has been added to the session string as "IncidentWarningInitialLimit" and "IncidentWarningSubsequentLimit". User Interfac
2026 Season 1 Patch 1 Hotfix 1 Release Notes [2025.12.16.02]2025-12-17This Hotfix Release contains a critical fix for an unpredicted serious issue with the 2026 Season 1 Initial Release. iRacing Simulator---------------------------------------------------------WeatherFixed a critical issue that could crash Race Servers where the code managing water heights and rain rates at certain tracks could exceed the allowable value bounds.
2026 Season 1 Patch 12025-12-152026 Season 1 Patch 1 Release Notes \--------------------------------------------------------- This Patch Release contains important fixes as well as some updates for the 2026 Season 1 Release. iRacing Simulator--------------------------------------------------------- AI RacingAI Drivers have improved their racing skills with the following vehicles: NASCAR Truck SeriesMercedes-AMG W13 E Performance. User InterfaceFixed a critical issue where the interface was blurry for some VR users.Fixed an issue where certain dropdown selections would be blank in the Options menu.Fixed an issue where the FOV calculation was not being saved correctly.Fixed
2026 Season 1 Initial Release2025-12-092026 Season 1 Initial Release Notes \----------------------------------------------------------The iRacing 2026 Season 1 Release Build is out of the paddock and on the starting grid! This is one of four major annual releases for iRacing, and adds new content, features, upgrades, and a toolbox-full of fixes for 2026 Season 1, which officially starts on December 16th at 0000 UTC!We have wasted no time in advancing our new Sim UI towards the next level of awesome and have added several new features for this release, including: Options Search, four Black Box pages have been repackaged into standalone Widgets, and substantial UI customization is n
2025 Season 4 Patch 4 Release2025-11-192025 Season 4 Patch 4 Release Notes \ This Patch Release contains important fixes as well as some updates for the 2025 Season 4 Release. Simulation:PerformanceFixed a recent and prevalent issue where framerate significantly drops after racing for some length of time.Race ControlSlightly improved the precision used for verifying missed checkpoints and course cut black flags.AI RacingAI Drivers have improved their racing skills at Circuit des 24 Heures du Mans.AudioFixed an issue where the RPM on nearby opponent cars could appear to sound substantially too high.User InterfaceImproved the performance and functionality of the Skew (S) meter.Corre
2025 Season 4 Patch 3 Hotfix 1 Release Notes [2025.10.17.01]2025-10-212025 Season 4 Patch 3 Hotfix 1 Release Notes \ This Hotfix Release contains critical fixes as well as some updates for the 2025 Season 4 Patch 3 Release. SimulatorUser InterfaceFixed an issue where tire options were available for team members that were not available for the crew chief or driver. CarsVW Beetle LiteFixed a critical issue where this car would fail to load into Sessions.
2025 Season 4 Patch 3 Release [2025.10.16.01]2025-10-162025 Season 4 Patch 3 Release Notes \This Patch Release contains important updates as well as fixes for issues with the 2025 Season 4 Release. Special Demo Drive Note:During this maintenance period, there will be intermittent connectivity to the Demo Drive launching/setup service for roughly the first 30 minutes of downtime. Customers who enter a Demo Drive Session during this period will be unaffected by the ongoing work. After the Demo Drive work is complete, and our patch deployment process continues as normal, Demo Drive will be fully functional again as usual.Since Demo Drive will not be fully available during this maintenance period, De
2025 Season 4 Patch 2 [2025.09.24.01]2025-09-25This Patch contains some updates and fixes for the 2025 Season 4 Release.You can find the Release Notes for this Patch below, or on the iRacing Forums here: 2025 Season 4 Patch 2 Release Notes \ — iRacing ForumsSimAI RacingThe Dallara IL15 is now enabled for AI racing.AudioAdded the latest Italian spotter pack.GraphicsFixed an issue with AMD FSR where the viewport was not being calculated correctly.NOTE - While this issue is fixed for non-VR, AMD FSR still is not functioning correctly in VR.For AMD FSR, the new UI is now centered and interacts properly with the mouse when FSR is enabled.Fixed some issues with eye tracking for Pimax.PhysicsUpd
2025 Season 4 Patch 1 [2025.09.12.01]2025-09-15This Patch contains some updates and fixes for the 2025 Season 4 Release.You can find the Release Notes for this Patch below, or on the iRacing Forums here:https://forums.iracing.com/discussion/85557/2025-season-4-patch-1-release-notes-2025-09-12-01SimulationUser InterfaceGENERAL:Fixed an issue where some values had excessive decimal precision.Fixed an issue where spin controls were lacking feedback when selected.Fixed stutter when race flags are shown for the first time.Added VR screen space controls to the Options menu.Fixed a FOV calculator bug that mixed up imperial/metric units, causing the FOV to come out wrong.SESSION SCREEN:Added a gr
2025 Season 4 Release2025-09-092025 Season 4 Release Notes \-------------------------------------------------------------- The iRacing 2025 Season 4 Release Build has passed tech inspection and is ready to roll! This release introduces new content, features, improvements, and fixes for 2025 Season 4, which officially starts on September 16th at 0000 UTC! “#soon” has arrived, and the new Sim UI is finally here! Rebuilt from the ground up, the new Sim UI utilizes modern technology, tools, and design principles to power an advanced new UI framework and in-sim experience. The new Sim UI should appear familiar in form to long-time users, with select new capabilities and functio
2025 Season 3 Patch 4 Hotfix 12025-08-122025 Season 3 Patch 4 Hotfix 1 Release Notes \ This Hotfix Release contains critical fixes for issues with the 2025 Season 3 Release. SIMULATION:--------------------------------------------------------------ControlsFixed a critical issue with the Moza API that was causing the Simulator to crash after running for nearly 3 hours. CARS:--------------------------------------------------------------Dallara IR18Improved the pit limiter light implementation.MPG has been added back onto the digital display.
2025 Season 3 Patch 4 Release Notes [2025.07.25.02]2025-07-292025 Season 3 Patch 4 Release Notes \ This Patch Release contains updates and fixes for the 2025 Season 3 Release. SIMULATION:--------------------------------------------------------------Controls- 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.Graphics- 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.Telemetry
2025 Season 3 Patch 3 Hotfix 1 Release Notes [2025.07.02.02]2025-07-032025 Season 3 Patch 3 Hotfix 1 Release Notes \This Hotfix Release contains critical fixes for issues with the 2025 Season 3 Release. SIMULATION:--------------------------------------------------------------GraphicsThe 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).ControlsWe 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
2025 Season 3 Patch 3 [2025.06.27.02]2025-07-012025 Season 3 Patch 3 Release Notes \ This Patch Release contains updates and fixes for the 2025 Season 3 Release. iRACING:--------------------------------------------------------------FlagsFixed 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.SIMULATION:------------------------