The latest update for iRacing, Patch 3 for the 2025 Season 2, has arrived, bringing with it several improvements and a notable new feature. Among these is the introduction of Adaptive AI Racing for Single AI Sessions, designed to tailor racing experiences to individual player preferences.
2025 Season 2 Patch 3 Release Notes [2024.04.02.02]
- This Patch Release contains updates and fixes for the 2025 Season 2 Release.
- This Patch Release also includes the new feature, Adaptive AI Racing for Single AI Sessions!
Simulation
AI Racing
- Adaptive AI is now available for Single AI Sessions!
- – – Adaptive AI is an all new system that provides each iRacer an AI Racing experience that’s tuned to their individual preferences and desired level of challenge. Rather than tuning difficulty percentages, with Adaptive AI users choose whether they are looking for a Low, Medium, or High level of challenge. This experience is dynamic and tuned to each iRacer, so one racer’s Low might be another racer’s Medium. While Adaptive AI is built for iRacers of all abilities, it does have a sweet spot and it’s possible that some of our fastest racers might exceed the pace that the system can provide. As with all iRacing systems, Adaptive AI will continue to evolve and improve as we collect and incorporate iRacer feedback.
- – – Adaptive AI will make its debut in Single Race, with a follow-up planned for Hosted iRacing and AI Seasons at a later date.
- AI Drivers have improved their racing lines at USA International Speedway.
- AI Drivers have improved their racing skills with the NASCAR Truck Series Class Trucks.
Physics
- The physics processing for collisions involving opponent vehicles has been updated for improved accuracy.
- – – Opponent cars now automatically update their physics processing frequency to a much higher rate any time they detect they are in close proximity to any object, or whenever a collision occurs.
- – – – – This alleviates an issue where opponent vehicles could sometimes appear to snag on walls, climb up objects, or trigger other visual oddities.
- – – Torque scaling applied during impacts to wheels has also been adjusted. Opponent vehicles now behave much more realistically when striking walls with their wheels.
Dynamic Track Model
- Updated the appearance of dynamic track debris within the space tangential to the track surface.
- Fixed an issue with normal mapping of track debris, making their visible bumpiness more correct.
Graphics
- Lighting exposure intensity for when the sun is within 15 degrees of the horizon has been reduced.
- Improved the brightness of pit entry/exit lights and caution lights, especially at sunset.
- Improved brightness in foggy, rainy, and overcast conditions.
- The lighting gradient at the horizon line has been improved.
- Improved the appearance of fog over terrain surfaces and in mirrors.
- Improved MSAA processing for foggy conditions.
Spotter/Crew Chief
- For Autofuel, fixed an issue where fuel usage data could sometimes become invalid between sessions. Additionally, if invalid fuel data leaks into the autofuel system, it will now be discarded and the system will be reset instead of corrupting future data.
- Some Foreign Language Spotter Packs have been updated.
User Interface
- Fixed an issue where the training Race Line was always white, instead of color-coded to indicate braking and acceleration zones.
Cars
<Car Class> ARCA 2025 Series
- For custom paints, a headlight has been moved to the decal layer, so custom paints may once again stamp numbers over them.
- For the damage model, friction parameters have been increased on the tire and rim sidewalls to prevent any benefits from wall-riding.
BMW M2 CSR
- Fixed an error where the left-front tire change always required an additional 5 seconds. This tire changer has been re-assigned to a new job more befitting his talents.
NASCAR Cup Series Chevrolet Camaro ZL1
- Fixed an issue where the shadow of this car was incorrect.
Tracks
Circuit des 24 Heures du Mans
- Fixed an issue where some sausage curbs had a tasteless inverted texture.
Darlington Raceway
- Some advertisements have been updated.
Oulton Park Circuit
- Fixed the super secret off-track error at the Turn 3 exit.
Sebring International Raceway
- Removed a troublesome tire bundle from Turn 3.
If you’ve tried out these changes or noticed anything else exciting in this patch notes release let us know what you think in comments below!
