2025 Season 4 Patch 4 Release

2025 Season 4 Patch 4 Release Notes [2025.11.18.02]

This Patch Release contains important fixes as well as some updates for the 2025 Season 4 Release.

Simulation:

Performance

• Fixed a recent and prevalent issue where framerate significantly drops after racing for some length of time.

Race Control

• Slightly improved the precision used for verifying missed checkpoints and course cut black flags.

AI Racing

• AI Drivers have improved their racing skills at Circuit des 24 Heures du Mans.

Audio

• Fixed an issue where the RPM on nearby opponent cars could appear to sound substantially too high.

User Interface

• Improved the performance and functionality of the Skew (S) meter.

• Corrected some bindings for Best Times and Delta Times.

• Add a subtle background to the Player’s entry for Relative Brake Bias.

• Fixed an issue in Settings where the FOV calculator would not accept text inputs.

• Fixed an issue where the Custom Sector box was not showing +/- time correctly.

• For the Camera Tool, fixed a crash-to-desktop error with the context menu.

Controls

• Updated to the latest Simucube API.

Cars:

Audi 90 GTO

• Brake bias adjustments are now allowed in Fixed Setup events.

Cadillac CTS-V Racecar

• During pit stop repairs, all vehicle damage may now be fully repaired.

Ford Mustang GT4

• Improved windshield wiper animations and visual effects.

HPD ARX-01c

• Brake bias adjustments are now allowed in Fixed Setup events.

Nissan GTP ZXT

• Brake bias adjustments are now allowed in Fixed Setup events.

Pontiac Solstice

• During pit stop repairs, all vehicle damage may now be fully repaired.

VW Jetta TDI Cup

• During pit stop repairs, all vehicle damage may now be fully repaired.

[Legacy] Dallara IR-05

• Brake bias adjustments are now allowed in Fixed Setup events.

[Legacy] Riley MkXX Daytona Prototype - 2008

• During pit stop repairs, all vehicle damage may now be fully repaired.

• Brake bias adjustments are now allowed in Fixed Setup events.