Last week was the release of the 2017 season 2 build. This brought a lot of changes, among others the tire model of many road cars. As expected some things need some tweaking or fixing. That’s why iRacing released a patch today.

The biggest updated to the tire model is increasing the tire wear over a long run.

Read the release notes below.

Release notes

Simulation

– Fixed the iRacing installer program to correctly refer to the 64-bit iRacingService64.exe, instead of the 32-bit version that no longer exists.

– Fixed an issue where if the iRacing installation directory name contained spaces, the iRacingService might not start properly.

Controls

– Fixed a bug where the updated fast releasing parking assist brake aid was not releasing as it should.

Tires

– Reduced the ability of tires to pick up and retain debris to make accumulation of dust and marbles reasonable with soft and sticky tires.

Visual Effects

– Heat haze distortion effect has been updated.

Particles

– Opponent cars’ particles should now roll better.

– Opponent cars will now emit less smoke when on wet surfaces.

– Adjusted dust cloud generation and scale.

– Smoke particles should now appear more prevalent on tires.

PopcornFX

– Fixed an issue where multiple fireworks playing in the same frame were not emitting multiple sounds.

Replay

– Fixed a bug that was preventing the Results page on the Replay screen from populating with the results from all the weekend’s sessions when watching a replay that was loaded off disk.

Virtual Reality

– Fixed an issue where the new VR headset sound rotation option could not be turned back on using the in-sim UI.

– Fixed panning sound issues with replay cameras and virtual reality headsets.

CARS

Aston Martin DBR9 GT1

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Audi R8 LMS GT3

– Baseline setups have been corrected.

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

BMW Z4 GT3

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Cadillac CTS-V Racecar

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Chevrolet Corvette C6.R GT1

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Chevrolet Corvette C7 Daytona Prototype

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Dallara DW12

– Season setups have been updated.

Ford GT

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Ford GT GT3

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Ford Mustang FR500S

– Slightly increased cure-based tire degradation.

Global Mazda MX-5 Cup

– Season setups have been updated.

– Slightly updated tire construction and compound.

– Slightly increased cure-based tire degradation.

HPD ARX-01c

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

– Tire compound has been hardened for greater responsiveness and lower yaw at which we see peak grip.

– Fixed an issue where the tires would appear to protrude through the fenders.

Kia Optima

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Mazda MX-5 Cup & Roadster circa 2015

– Slightly increased cure-based tire degradation.

McLaren MP4-12C GT3

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Mercedes-AMG GT3

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

NASCAR Sprint Cup Chevrolet SS

– Fixed a bad license texture that was causing corruption on the front splitter and rear spoiler.

Pontiac Solstice

– Slightly increased cure-based tire degradation.

Porsche 911 GT3 Cup Car (991)

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Pro Mazda

– This vehicle has been converted to use PBR shaders.

– Default wheel color has been changed.

Riley MkXX Daytona Prototype

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Ruf RT 12R C-Spec

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

Ruf RT 12R Track

– Season setups have been updated.

– Greater tire degradation over long runs via cure-based degradation.

– Minimum cold tire pressures have been increased to ensure realistic operating pressures.

VW Jetta TDI Cup

– Slightly increased cure-based tire degradation.