iRacing has just released Patch 2 for Season 4 2025, fixing a plethora of issues, mostly of which are UI related. There’s also quite a few fixes for some cars. You can find the full changelog below:
Sim
AI Racing
- The Dallara IL15 is now enabled for AI racing.
Audio
- Added the latest Italian spotter pack.
Graphics
- Fixed 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.
Physics
- Updated correction for engine power that will bring power unit outputs more in line with reality at high altitude tracks like Mexico City.
Race Servers
- Fixed a crash that was occurring when switching from a Practice server to a Race server.
User Interface
- Fixed an issue where spotting in practice sessions would cause overlapping unreadable buttons to appear in the Session Screen.
- Fixed the sliders in the Camera Tool to now behave properly when typing values outside of the minimum and maximum constraints, or entering a blank string.
- Added expand/collapse functionality.
- Fixed an issue where the wind direction arrow was facing the incorrect direction.
- Fixed an issue with QuickChat not saving properly.
- The Garage > ‘My Setups’ file dialog and Camera file dialog now correctly show the contents of directories when a user has characters outside of their default locale in their file path.
- Removed the word “Sector” from the Splits display to make it more compact.
- Fixed an issue where the horizontal scroll for the Results tab would not always appear at the bottom of the window.
- Fixed the Tire Options black box navigation for the Porsche Mission R. This fix applies to any car with changeable tires but non-adjustable tire pressures.
- Fixed an issue where the Lap Timing black box included a blank rectangle next to the title.
- Increased the contrast of the gradient behind the steering wheel icon.
- Fixed an issue where the ‘Configure Now’ option would not return users to the calibration wizard.
- Fixed a crash that was occurring for users in specific Time Zones with specific Regional Formats.
- Fixed an issue where the Entries tab was sorting Divisions by their first digit.
- Fixed the dropdown values when exporting Garage setups.
- For heat races, fixed an issue where the left and right columns in the Event Rules were not aligned.
- Increased the resolution on the steering lock range slider.
- Fixed an issue where car numbers in the Results tab were not always aligned.
- Added an Official/Unofficial flag state next to certain sessions.
- Fixed an issue with text being cut off in the chat box.
- Fixed the camera timer overlay so it matches the legacy UI behavior.
- Fixed an issue where the Shift Horizon setting had values of -0 and +0.
- Fixed an issue where setups would reset if they had special requirements for fields that would limit options.
- Added some missing spotter options to the Settings.
iRacing
Paint Kit
- Fixed an issue where certain cars had painted tires, windshields, and windows when using specific paints and car patterns.
Cars
<Car Class> GTP
- Adjusted the hybrid code to ensure that every GTP and the Ferrari 499P have equivalent hybrid-assisted fuel economy.
Acura ARX-06 GTP
- Fixed an issue where the Autofuel keybinds and Fuel To End toggle were not working correctly.
- Fixed an issue where the steering wheel dash did not display the TC1 and TC2 values in the appropriate places.
Acura NSX GT3 EVO 22
- Fixed an issue with the rain light.
Aston Martin Vantage GT3 EVO
- Fixed an issue where camber would not be highlighted when causing the tech inspection to fail.
- Increased the engine torque.
- iRacing setups have been updated.
Aston Martin Vantage GT4
- Aligned the shift lights on the digital dash.
BMW M Hybrid V8
- Renamed TC1 and TC2 to TCLON and TCLAT in order to match the in-car dash display.
- Fixed an issue where the TC1 and TC2 in-car controls did not map correctly to the TC1 and TC2 settings.
Cadillac V-Series.R GTP
- Fixed an issue where the Autofuel keybinds and Fuel To End toggle were not working correctly.
- Fixed an issue where the TC1 and TC2 in-car controls did not map correctly to the TC-A and TC-B settings. TC-A is also correctly labelled in the black boxes and garage now.
Dallara IL-15
- Raised the yield and break limits for wheels.
- Increased the meatball flag threshold for wheel damage and improved the pace of wheel repairs.
- NOTE – Terminal wheel damage is still possible.
Ferrari 499P
- Fixed an issue where the TC1 and TC2 in-car controls did not map correctly to the TC1 and TC2 settings.
Ford Mustang GT3
- Fixed an issue where the windshield wiper controls were not highlighted in the Options menu.
Ford Mustang GT4
- Slightly reduced the front rebound damping. iRacing setups have been updated.
Lotus 79
- iRacing setups have been updated.
Mercedes-AMG W12 E Performance
- The selected deploy mode should now be accurately reflected by the steering wheel dash and dials.
- Recharge mode can now be bound to an in-car control: Regen Gain.
Mercedes-AMG W13 E Performance
- Relocked the engine braking dial to a max of 12 positions.
- The selected deploy mode should now be accurately reflected by the steering wheel dash and dials.
- Recharge mode can now be bound to an in-car control: Regen Gain.
Porsche 963 GTP
- Renamed TC1 and TC2 to TCLO and TCLA in order to match the in-car dash display.
- Fixed an issue where the TC1 and TC2 in-car controls did not map correctly to the TC1 and TC2 settings.
Porsche Mission R
- Fixed an issue with the power audio.
- Fixed an issue with the In-Car Adjustments black box not functioning correctly.
- Fixed an issue where the dashboard G meters and ABS lights were stuck at 50%.
Renault Clio R.S. V
- Fixed an issue where the car could fail tech without displaying why.
[Legacy] Porsche 911 GT3 R
- Fixed an issue with floating fuel lids appearing in the cockpit view.
Tracks
Autódromo Hermanos Rodríguez (Mexico City)
- Added a temporary renderer.ini setting to help resolve an issue where lower shader quality settings showed white paint around the stadium.
- Added LODs to the scissor lift object.
- Fixed an issue where the stadium section of the track was missing textures at Medium/Low shader settings.
Daytona International Speedway
- Adjusted the instanced powerlines.
Nürburgring
- Updated several adverts around the track.
Oulton Park Circuit
- Added wraps to the weaved tire bundles.
