- New Content: The 0.9 update introduces three high-performance vehicles, including the Audi R8 LMS GT2 and the Mazda RX7 FD Spirit R (Type A), alongside a major overhaul of the Limited Slip Differential (LSD) simulation.
- Technical Enhancements: Kunos Simulazioni has implemented “Exposure Fusion” to mimic human eye light perception and an automatic Force Feedback recovery system that restores signals within one second of a disconnect.
Kunos Simulazioni has officially deployed Assetto Corsa EVO Update 0.9 as of August 26, 2026, marking a significant step in the title’s early access development. This update isn’t just a collection of bug fixes; it changes how the engine handles lighting, mechanical friction, and player feedback. Drivers keeping an eye on The Crew Motorfest Update 1.24 Patch Notes: Year 3 Guide will see that while arcade titles often prioritize seasonal additions, EVO focuses on the technical physics of simulation racing.
Advanced Lighting via Exposure Fusion
One of the most significant visual upgrades in this patch is the introduction of Exposure Fusion. Unlike standard HDR tonemapping, which often prioritizes a cinematic look by compressing the dynamic range, Exposure Fusion is designed to replicate the human eye. In sim racing, this has functional benefits. When driving through high-contrast environments, such as the setting sun at the Nürburgring or the deep shadows at Spa-Francorchamps, standard rendering often results in lost detail. Exposure Fusion allows the engine to blend multiple exposure levels in real-time, ensuring that the driver can still see the apex of a corner even when moving from blinding light into heavy shade.
Mechanical Overhaul: LSD Friction Faces
For the competitive tuning community, the addition of customizable LSD friction faces in the car setup menu is a major development. In a mechanical limited-slip differential, friction faces (or plates) determine how aggressively the differential locks under load. By increasing the number of friction faces, players can achieve a more linear and forceful locking behavior, which is essential for managing the high-torque output of the newly added Mazda RX7 FD Spirit R. This technical depth mirrors the optimization seen in recent patches like the Nioh 3 Update 2.000.020 Patch Notes: Fixes Save Data & PS5 Pro, where hardware-specific performance and stability were prioritized.
Force Feedback and Input Stability
Hardware reliability has received a significant boost with the new Force Feedback (FFB) recovery system. If a user accidentally Alt-Tabs out of the game or experiences a temporary USB disconnect, the game now automatically restores the FFB signal within approximately one second. Additionally, Logitech TrueForce users will benefit from a new 350 Hz low-pass filter, which cleans up high-frequency noise for a smoother tactile experience. For those seeking absolute control, the update now supports a custom ffb.lut file in the SavedGame folder, allowing for the manual linearization of force feedback curves to match specific wheelbases.
The Road to Free Roam
While the update adds the Audi R8 LMS GT2 and the Audi R8 V10 performance quattro, the community remains focused on the upcoming Free Roam mode. Kunos has confirmed this mode is still under active development for a later release. Community discussion suggests the Free Roam map may include the expansive public roads surrounding the Circuit de la Sarthe or winding Italian mountain passes. This is a highly anticipated feature, as it aims to combine the game’s physics with a non-linear driving environment. Until then, players can engage with the new Limited Attempts feature on leaderboards, which adds pressure to Hotlap events by restricting how many valid laps can be submitted for ranking.
For more details on the development of the title, you can visit the Assetto Corsa Official Website or follow the Kunos Simulazioni Official Twitter for real-time developer insights.
