This Hotfix Release contains a critical fix for an unpredicted serious issue with the 2026 Season 1 Initial Release.
iRacing Simulator
Weather
Fixed a critical issue that could crash Race Servers where the code managing water heights and rain rates at certain tracks could exceed the allowable value bounds.
2026 Season 1 Initial Release Notes [2025.12.08.03]
The iRacing 2026 Season 1 Release Build is out of the paddock and on the starting grid! This is one of four major annual releases for iRacing, and adds new content, features, upgrades, and a toolbox-full of fixes for 2026 Season 1, which officially starts on December 16th at 0000 UTC!
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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
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2025 Season 4 Patch 3 Hotfix 1 Release Notes [2025.10.17.01]
This Hotfix Release contains critical fixes as well as some updates for the 2025 Season 4 Patch 3 Release.
SimulatorUser Interface
Fixed an issue where tire options were available for team members that were not available for the crew chief or driver.
CarsVW Beetle Lite
Fixed a critical issue where this car would fail to load into Sessions.
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