Assetto Corsa EVO 0.4.1 patch update

We’ve reviewed the official 0.4.1 patch notes for Assetto Corsa EVO. This patch is mainly about stability, stutter-related optimizations, session consistency, and a spread of car, track, and UI fixes.

What changed

Features

Increased the UI engine texture cache count to address a potential source of stuttering.
Added a potential optimization for stuttering caused by UI items.
Replay UI no longer shows a redundant index when cycling camera submodes.
Server list now includes filters for gamemode types.
Servers using the "practice" gamemode are now displayed as "trackday."
Eligible-car selection now matches the current car if no stored car is selected.

Fixes

Added a potential fix for heavy stutter when an input device reconnects.
Season definition penalties are now consistent between Quick Race and Race Weekend race sessions.
Dynamic damping setting changes in controls now apply without requiring a restart.
Fixed a game crash when launching R3 Academy events.
Fixed a race server crash.
Added passenger camera views to all F6 onboard TV cameras.
Fixed the Audi RS 3 rear door animation being playable while driving.
Nürburgring received minor visual fixes.
Fixed the Porsche 718 GT4 RS lights script.
Caterham Academy received setup-limit and shift RPM LED tweaks.
Toyota Supra engine visuals are now exposed for both variants.
Mini exhaust backfire position was tuned as a partial fix.
AI cars now react better to lower-pace opponents.
BMW M3 E46 CSL audio was improved, with additional dash scripting updates.
Spectator sound zone volume was tweaked.

Tracks

Added line thickness to the full-map widget for all Nordschleife layouts.

Physics

Mazda MX5 Cup wet setup now specifies the wet tyre.
Ferrari SF-25 received aero updates, setup-limit changes, and a fix for wing setting adjustments not applying correctly.

For our league ops, we should validate server stability after the server-crash fix, recheck penalties and session presets, and update any event notes that depend on wet setups, server browser behavior, or Ferrari SF-25 setup baselines.

From the changelog

Structured change list parsed from the official notes.

features

[h1]Patch Notes[/h1]
- incremented UI engine texture cache count - this was a source of potential stuttering
- potential optimization for stuttering caused by UI items
- replay UI: removed redundant index when camera submode cycling

fixes

- potential fix for heavy stutter when an input device reconnects
- season definition penalties made consistent between quick race and race weekend race session
- controls: fix for dynamic damping setting changes only taking effect after game restart
- Caterham Academy setup limits and shift rpm led tweaks
- Toyota Supra engine visuals exposed (both variants)
- Mini tuned exhaust backfire position (partial fix only, will require additional code fix to hide the stock exhaust's emitter, which will come in the next major update)
- fixed Audi RS 3 rear door animation being playable while driving
- added passenger camera to all F6 (onboard TV) cameras
- Nürburgring minor visual fixes
- fix for game crash when trying to launch R3 Academy events
- fix in the Porsche 718 GT4 RS lights script
- fixed a race server crash

tracks

- added line thickness to all Nordschleife layouts' full map in the map widget

physics

- Mazda MX5 Cup wet tyre specified for wet setup
- Ferrari SF-25 aero updates, setup limits, fixed wing setting adjustments not taking effect correctly

cars

- Serverlist - added filters for gamemode types, display "practice" gamemode servers as "trackday", match current car if no stored car is selected in eligible car list
- improved BMW M3 E46 CSL audio
- tweaked spectator sound zone volume
- BMW M3 CSL dash scripting updates
- AI cars will now have improved reaction to lower-pace opponents