Williams FW31
– Updated with the latest version 5 tire model, along with new setups.
Simulation
– Fixed a bug that could cause the simulation to crash when loading a setup.
– Fixed an issue where setup notes might become incorrect when cancelling setup changes or loading a new setup.
– Fixed a bug where missing the start of a race and starting from the pit lane in an event that was configured to have no fast tows available would cause the car to start with improperly initialized physics resulting in very cold temperatures and a full tank of gas, which depending on the car could be much slower than it should be or faster than it should be.
– Tire temps/wear are now visible to the driver and crew during a pit stop, and after getting out of the car.
– You may edit your setup in a race session once you are no longer being scored (at the end of the session, or if you are DQ’d).
– Fixed fog rendering for some materials.
– Fixed windshield reflections.
Pitstop Macros
– Add a cleartires option to pitscript macros.
– Clean up the parsing of commands a bit so you only need to type in the first two letters.
– Remove debug code that forced app.ini [Autochat Messages] to be named [Autochat Messages1] on Alpha builds.
– Support up to 256 characters for text chat macros.
Chevrolet Impala Class B
– Updated all setups to pass tech.
Chevrolet Impala-COT
– Updated all setups to pass tech.
Chevrolet National Impala
– Updated all setups to pass tech.
Chevrolet Silverado
– Updated all setups to pass tech.
Chevrolet SS-Gen6
– Updated atlanta_fixed setup.
Dallara IndyCar
– Updated indy_road_fixed setup.
Ford Fusion-Gen6
– Updated atlanta_fixed setup.
Lotus 49
– Added setups for all the tracks on the season’s schedule, and updated the baseline setup too.
McLaren MP4-12C
– Fixed the broken brake lights on remotes.
ALSO SEE
Three iRacing Tracks Get Major Visual Overhauls in Season 2
Lanier National Speedway, Langley Speedway, and USA International Speedway all received full visual overhauls in the iRacing Season 2 build.
2026 Season 2 Initial Release Notes [2026.03.09.03]
The full official release notes for iRacing’s 2026 Season 2 build, posted March 10, 2026.
Barber Motorsports Park Has Been Fully Rebuilt in iRacing Season 2
Barber Motorsports Park has been rebuilt from the ground up in iRacing’s 2026 Season 2 update, with all-new laser scan data and a complete art overhaul. Existing owners get the upgrade for free.
Everything New in iRacing 2026 Season 2
Two new cars, a brand new street circuit, a rebuilt track, four new HUD features, and a stack of car class overhauls. Here’s everything in iRacing’s 2026 Season 2 build.
iRacing Is Collaborating with Microsoft Research on AI Driver Coaching
iRacing is building AI driver coaching natively into the sim through a Microsoft Research collaboration using a Large Action Model, currently in the integration phase.
iRacing’s New Graphics Engine ‘Spark’ Is On Schedule
iRacing’s Spark graphics engine has completed its vertical slice milestone and is now in production, with night lighting identified as the next priority and described as transformative.
