iRacing Physics Islands Explained
iRacing Physics Islands is a multithreaded refactor of the core physics loop that cuts CPU overhead by 50 percent in full-field races. Here is how it works and what it enables.
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iRacing Rebuilds Road America, Mid-Ohio, and Milwaukee Mile in Season 4
Road America, Mid-Ohio, and Milwaukee Mile are all rebuilt from new laser scans for iRacing Season 4 2026. Existing owners get the updates free. Older versions retire.
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Caterham Academy and 420R Confirmed for iRacing Season 4
The Caterham Academy and Caterham 420R are both confirmed for iRacing Season 4 2026, arriving as a single purchase across Class D and Class C license tiers.
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iRacing Season 4 Adds Dedicated Pace Cars for Each Class
iRacing Season 4 introduces dedicated pace cars per class and independent green flags for multi-class racing. Here is what changes and why it matters.
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iRacing Rebuilds the Mazda MX-5 for Season 4
The Mazda MX-5 Season 4 update re-engineers the car’s suspension, engine, and tires from scratch. Here is what every MX-5 Cup driver needs to know before Season 4.
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iRacing Season 4 UI Gets Pit Summary, Car Damage, and More
iRacing Season 4 2026 adds six UI features: Pit Summary, Car Damage display, Reference Car for time trials, Quick Settings, Shifting Feedback, and Pinned Mode.
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iRacing Pavement Sprint Car Rebuilt for Season 4
iRacing rebuilt the Pavement Sprint Car from scratch for Season 4. New power output, suspension geometry, a new tire model, and 2026 rulebook compliance all change how the car drives.
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Aston Martin Valkyrie AMR-LMH Confirmed for iRacing Season 4
The Aston Martin Valkyrie AMR-LMH is confirmed for iRacing Season 4 2026, developed with real telemetry and engineering data from Aston Martin’s WEC racing team.
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iRacing Season 3 Patch 3 Lands July 14 with Scheduled Downtime
iRacing has confirmed Season 3 Patch 3 drops July 14 with a morning maintenance window starting at 8 AM EDT. Here are the downtime details and what to expect from the update.
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iRacing Season 3 Patch 2: Release Notes and What Changed
iRacing Season 3 Patch 2 is live. Here are the full release notes covering pit speed limiter fixes, GT3 TC tuning, Fuel Calculator crashes, and more.
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What Changed for GT3 in iRacing Season 3: The BoP Overhaul Explained
iRacing Season 3 brings the biggest GT3 BoP update in recent memory, with seven cars adjusted across power, fuel economy, and aerodynamics. Here is a full car-by-car breakdown plus early community reaction.
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How iRacing’s New Pit Speed System Works in Season 3
iRacing Season 3 redesigns pit road speed enforcement around a PID controller that targets the exact speed limit. Here is what changed and how to drive pit road correctly under the new system.
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iRacing Season 3 2026 Is Live: Full Build Breakdown
iRacing Season 3 2026 dropped today. New cars, Laguna Seca rebuilt from scratch, Qualcomm Circuit, dirt AI, four new UI widgets, and physics changes across the board. Here is everything in the build.
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WeatherTech Raceway Laguna Seca Rebuilt from Scratch in iRacing Season 3
iRacing has rebuilt WeatherTech Raceway Laguna Seca from the ground up in Season 3 2026, using brand-new scan data for the first time since the circuit launched in 2008. Here is what changed and what it means.
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iRacing Season 3 2026 Full Release Notes [2026.06.09.01]
Complete official release notes for iRacing Season 3 2026, build 2026.06.09.01. Every car update, track change, UI feature, and physics change from the full build.
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iRacing Control Profiles: No More Juggling CFG Files
iRacing Season 3 ships Control Profiles, a native UI system for saving, loading, and switching input configurations without managing .cfg files manually.
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iRacing SK and Tour Modifieds Get a Ground-Up Physics Refresh in Season 3
iRacing’s SK Modified and Tour Modified both received a full ground-up physics refresh in Season 3 2026, including new tires, rebuilt suspension geometry, and separated tech limits.
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iRacing Is Working Toward 128 Cars Per Session
iRacing has confirmed that 128 or more cars per session is a future platform goal. Here is what that would change for oval racing, endurance events, and multiclass sessions.
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iRacing Finally Has a Built-In Fuel Calculator
iRacing Season 3 ships a native fuel calculator widget with real-time consumption data, pit window display, and green-white-checker projections. No spreadsheet or third-party app required.
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iRacing Live Track Maps Are Here: Built Right Into the Sim
iRacing Season 3 ships four native track map modes built directly into the sim engine, with a new lightweight data packet that avoids the CPU overhead of third-party overlays.
![iRacing Season 3 2026 Full Release Notes [2026.06.09.01]](https://iracerhub.com/wp-content/uploads/2026/06/iracing-season-3-release-notes-2026-768x430.jpg)
