iRacing 2026 Season 2 Patch 2 Release [2026.04.06.02] Patch Notes (7th April 2026)

2026 Season 2 Patch 2 dropped today for iRacing, and the headliner is a meaningful expansion to the Balance of Performance system. Engine power can now be tuned above 100% for the first time, up to 110%, and vehicle weight adjustments now allow negative values down to -50kg. That opens up BoP configurations that simply weren't possible before, which hosted league organisers in particular will want to dig into.

On the AI side, a lap-counting error that caused the sim to underestimate race progress when you quit mid-event has been fixed, and AI drivers have improved their opening lap behaviour with better handling of tyre and surface temperature changes. The Milwaukee Mile also gets specific AI attention. These are the kinds of quiet fixes that make offline and solo racing noticeably less frustrating over time.

Elsewhere, the Throttle/Brake UI widget now supports up to 30 seconds of graph playback and gains horizontal reference lines for easier telemetry reading. Car-side, the TCR power scaling error at the Nürburgring Nordschleife has been corrected, and several damage model tweaks land across the Street Stock, Audi 90 GTO, and Super Late Model. Sebring, Mount Panorama, and St. Petersburg all receive track-side polish.

Full patch notes below.

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2026 Season 2 Patch 2 Release Notes [2026.04.06.02]

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Patch Release:

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This release is a Patch, focusing on additional updates, improvements, and fixes for the 2026 Season 2 Release. kg-card-end: html

iRacing Launcher

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Paint Kit

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• The Fanatec sponsor logos have been updated. kg-card-end: html

Simulator

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AI Racing

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• Fixed an issue where AI Drivers could fail to post Qualifying times if the player advanced the event too quickly. The AI Drivers now operate at simulated lightning speed, and will post Qualifying times.
• In AI Solo events, when the player quits the race between the green and checkered flags, the AI race results are estimated. An error in lap counting resulted in an underestimation of the laps completed by the AI. The error had no impact if the player quit during the first lap, but the effect was exaggerated the later into the event the player quit in the race. This error is fixed.
• AI Drivers have improved their opening lap times - they are better able to handle the tire and surface temperature changes throughout the course of their first laps.
• AI Drivers have improved their racing skills at The Milwaukee Mile. kg-card-end: html

Physics

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• The Engine Power Adjustment for Balance of Performance (BoP) setting may now be set to values greater than 100%, increasing the car's engine power. Previously, only values less than 100% were allowed.
• Allowable Engine Power Adjustment range is now between 90% and 110% of the original vehicle engine power.
• For Official Series and Sessions, the engine power percentage may also be adjusted within the same values, and the value should appear in the BoP for the event.
• Hosted Sessions can now also select an engine power percentage from 90% to 110%.
• During a test Session, the Engine Power Adjustment may be selected in the Garage. The Vehicle Weight Adjustment for Balance of Performance (BoP) setting may now be set to negative values, decreasing the vehicle’s mass. Previously, weight was only able to be added to vehicles. Allowable Vehicle Weight Adjustment range is now between -50Kg and +250Kg of the original vehicle weight.For Official Series and Sessions, the vehicle weight adjustment may also be adjusted within the same values, and the value should appear in the BoP for the event.The ability to select vehicle weight adjustments between -50Kg and +250Kg while creating Hosted Sessions will be added shortly.During a test Session, the Vehicle Weight Adjustment may be selected in the Garage.

User Interface

For the Throttle/Brake UI Widget, a new Graph Length option has been added which now supports up to 30 seconds of playback time.For the Throttle/Brake UI Widget, a new "Graph Horizontal Lines" option has been added to help better read telemetry values. When toggled on, it replaces the moving vertical lines.Fixed a crash-to-desktop issue that could occur when users were trying to set a HUD Profile as the global default, but that key did not exist in the “app.ini” file yet.

Graphics

Fixed an issue with vampiric rain (it was not appearing in mirrors).Fixed an issue where full resolution "Low Res" particle smoke effects were not Z-sorting correctly.

Cars

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NASCAR O’Reilly Series

Windshield reflections have been improved.

Street Stocks

For the damage model, roof durability has been increased. No comment on why this was needed other than a reminder to keep the wheels on the ground, folks.

TCR Cars (Touring Cars)

Removed some incorrect power scaling that was being applied when racing at the Nürburgring Nordschleife track configs.

Audi 90 GTO

A Meatball Flag can no longer be earned based only on bodywork damage.For the damage model, durability and stiffness of the hood and nose area have been improved.

BMW M4 G82 GT4

For the damage model, the rear hull has been stiffened slightly.

Dirt Street Stock

For the damage model, roof durability has been increased.

Honda Civic Type R TCR

Fixed a driver animation issue where a female driver's hands were not rotating with the paddle shifters correctly.

NASCAR Truck Ford F150

Some cockpit switch labels have been corrected.

Nissan GTP ZXT

A Meatball Flag can no longer be earned based only on bodywork damage.

Super Late Model

For the damage model, the yield and break limits for the nose have been increased.

Supercars Ford Mustang Gen 3

Tail lights should show properly in rain, not just at night.

Tracks

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Mount Panorama Circuit

Fixed an issue where the garage on pit road could disappear at certain rendering settings.

Nürburgring

Some additional purple hues on some track surfaces have been removed.

Sebring International Raceway

Increased the draw distance for some environmental objects, including flags and bridges, to prevent them from popping into view.Some texture details have been updated.

St. Petersburg Grand Prix

Some advertisements and banners have been updated.Fixed an issue where some objects were not using the correct specular texture maps.kg-card-end: html

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