Assetto Corsa Comp Up date News

Changelog 1.7.0

GENERAL:
- British GT tracks, Donington Park, Oulton Park and Snetterton, available as DLC.
- British GT championship season added, available as part of the DLC.
- British GT 2019 season GT3 liveries available as bonus content for all players.
- British GT 2019 season GT4 liveries available as bonus content for owners of the GT4 European Series DLC.
- British GT 2019 in-game single-player season with base-content tracks available for all players.
- British GT 2020 liveries that were previously released as bonus content are regrouped into the British GT season and remain available for all players.

GAMEPLAY:
- Added new game modes specific to the British GT season (playable as single race or via championship mode).
- AI - added multiclass support for single player races with AI (exclusive to the British GT season).
- AI - grouped qualifying in multiclass race weekends (when the session is set to 10 minutes or more).
- AI - tweaked scaling of "accelerated" session results when skipping sessions.
- AI - tweaked pace on wet track, reduced cornering ability in the wet.
- AI - regular blue flag behaviour disabled when GT3 cars are lapping GT4s.
- AI - increased driver error possibility in wet weather.
- Tweaked AI genome on Kyalami.
- Pit box assignment now starts from the pit exit at Spa to reduce outlap time.
- Formation lap - added threshold zone in the double file formation phase in the widget formation type to avoid undeserved penalties for cars in the inside lane on tracks with tight final corners.
- Fix for saving game while standing in the pitbox.
- Fixed potentially corrupted driving camera view after pressing look-behind and camera cycle inputs simultaneously or during session transitions.
- Fixed an occasional game crash caused by sparks emitters.

UI:
- Added British GT season selection item.
- Server List - re-organization and extra optional filtering for the lobby page.
Dual mode: using filters will query the entire server list, while not using filters will only list the 100 weighted servers as before.
Note that using the filters might result in a slower server list query due to higher data load.
- Server List - trigger request of only immediately accessible servers when appropriate.
- Server List - pulse the refresh list button whenever the list should be refreshed
When toggling from filtered/sorted full-server list mode to default 100 weighted server list.
- Server List - refresh button focus steal fix with mouseover.
- MFD - added new widget item in the MFD for last lap, lap count, time remaining.
MFD now shows all vital racing information, allowing for a more compact racing HUD per user preference.
- Garage screen - added track name and season on the garage screen under server name inside the server.
- Added mirror FOV adjustment via cameraSettings.json (mirrorFOV item).
- Added virtual mirror size and vertical positioning offset adjustment via hud.json (virtualMirrorSize and virtualMirrorVerticalOffset).
- Localization updates in various langauges.
- Added missing texts to the "How to improve" section of the ratings profile.
- Controller - fixed mislabeled TC Cut 4 entry on the controller input assignment page.
- Championship page - AI skill and aggression exposed per championship round.
- Removed standings from replay HUD definition - instead, standings added as page widget that is now navigable with controller/keyboard and visible in VR.
- Minor restyling of the pedals widget - original functionality of input/full input indicators restored.
- Fixed Next/Skip Session entry in Pause menu depending on whether session is active or inactive.
- Styling changes to brand/team selection tiles.
- Team selection in MP now indicates series participation.

PHYSICS:
- Added backend support for British GT BOP.
NOTE: the British GT season has its own specific BOP for shared tracks (Silverstone, Brands Hatch and Spa) when in single player (only when played through the British GT season in the UI).
In Multiplayer, the shared tracks (Silverstone, Brands Hatch and Spa) always use the GT World Challenge and GT4 European Series BOP.
- Fixed unintended asymmetrical setup presets on various cars.
- BOP-regulated fuel tank limitation implemented in 2020-season Paul Ricard and Spa, values set for all cars.
- Improved vehicle ground collision simulation.
- Improved rev limiter behaviour of the AMR V8 Vantage GT3, AMR V12 Vantage GT3 and Lexus RC F GT3.
- Improved heat generation versus tyre volume, wear, pressure influence for all GT3 and GT4 wet tyres.
Potentially improves the handling of lighter, mid-engined cars in the rain.
Improves the durability of wet tyres in light-moderate wet conditions.
- Fixed front-rear inconsistency in cold wet tyre temperatures on the Audi R8 GT4 and Maserati GT4.
- Reduced settling time when adjusting the suspension of the Honda NSX GT3 Evo and Lamborghini Huracán GT3.
- Improved the influence of ambient conditions on water dissipation in the dynamic track model.
- Fixed an issue with cloud level incorrectly influencing water dissipation during night hours.
- Minor adjustments to the dynamic weather scaling (both single and multiplayer).
Wider cloud variation, lower potential rain deviation from base and lowered maximum weather drift range throughout the weekend.
General notes and guidelines still apply. In MP, variability combined with sessions set on the 3rd day of the weekend still has a chance of notable deviation from base settings.
- Shared memory - added global flags, yellow flags per sector, MFD tyre pressures, fuel to add, tyre set and compound names to shared memory writer.

GRAPHICS:
- Added real-time contact shadows in Visual Options.
Less taxing alternative to using the highest settings for regular dynamic shadows, also helps with shadow pop and undercar shadows when objects leave the shadow cascade.
- Improved baked skid mark visuals.
- Improved dynamic skid mark visuals using a different shader technique.
- Improved asphalt shaders across all tracks.
- Global exposure tweaks for overcast conditions.
- Global exposure tweaks for certain tracks.
- Fixed missing sun occluders at various tracks.
- Fixed or reduced mesh clipping with numberplate on the doors on the Bentley and Mclaren 720 LODs.
- Updated dash display of the Ferrari 488 GT3 Evo 2020.

AUDIO:
- Audio: potential fix for duplicated ambient sounds on certain tracks.
- Improved distance filter for exterior engine sounds.
- Improved internal audio blend with F7 camera.
- Enabled airport ambient sounds at Donington Park and Circuit Paul Ricard.
- Jet plane sound at Donington Park.

_________________________________________

 

Indeed ! next series will have them !

 

Dear ACC racers!
ACC hotfix 1.7.1 is out now on Steam, refresh your client in order to get the update.

EDIT: The new update mistakenly still says 1.7.0 in the UI but if in doubt, the version number can be verified via the latest entry in the changelog.txt in the ACC install folder (SteamLibrary/SteamApps/Common/Assetto Corsa Competizione/)
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v1.7.1 changelog

- Corrected server browser behaviour when searching for LAN servers.
- Tweaked dynamic skidmark appearance.
- Fixed glowing village houses at night at Oulton Park.
- Corrected British GT decals on custom liveries under British GT season.
- Improved real-time widget filtering.
- Aston V12 reduced setup oscillation on settling.
- Corrected total track medal count.
- Server: removed a spammy log line - see separate Dedicated Server update.

 

Dear ACC racers!
ACC hotfix 1.7.2 is out now on Steam, refresh your client in order to get the update.

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v1.7.2 changelog
GRAPHICS:
- Various visual fixes around Donington.
- LOD adjustments on the new British GT tracks.

UI:
- Only the full track map is available on the "Track Map" HUD page.
- Slight adjustments to the Car Selection page to avoid overlapping of text in some localizations.
- Updated driver database.

CONTROLLERS:
- Fixed behaviour with repeated D-Pad inputs in certain situations.

PHYSICS:
- Adjustment to the fuel consumption of the Honda NSX GT3 (old).
- Improved rev limiter behaviour of the Mercedes-AMG GT3 (both old and new).
- Fixed an issue with the strategy presets in the KTM XBOW GT4 aggressive setup preset at Oulton Park.
- Fixed MFD max fuel limit not respecting BOP fuel cell limits.
- Corrected fuel tank size of the Aston V12 GT3 in all BOP groups.

GAMEPLAY:
- AI - Potential improvement to AI overtaking at Snetterton.
- AI - Increased aggression of lower-class drivers to improve their ability to navigate traffic.
NOTE: global AI aggression might need slightly lower values to achieve the same results as earlier.

 

Dear ACC racers!
ACC hotfix 1.7.3 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.3 changelog
GAMEPLAY:
- Fixed a duplicate entry issue in British GT championship mode.
- Fixed British GT 2-hour event rules not fully applied when played in Single Player.

UI:
- Fixed a floating point error causing inconsistent track grip status readout.

AUDIO:
- Minor volume tweaks to Porsche GT3 and Cup cars.
- Improved audio blend with the F7 camera.

GRAPHICS:
- Fixed incorred blurred custom rim on the Camaro GT4.
- Fixed LOD UV issue on the AMR V8 GT3.
- Tweaked appearance of wet kerbing at Snetterton.

 

Dear ACC racers!
ACC hotfix 1.7.4 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.4 changelog
PHYSICS:
- Fixed a tyre allocation error in certain 2020 BOP groups.
- Tweaks to the heat and camber thrust sensitivity of the wet tyre compound.
- Fixed total fuel ignoring BOP fuel cell limits when refuelling on non-empty tank.
- Added shared memory items for track grip status, rain level and forecast.
The status enumerators represent stages (and not exact values), and correspond with the UI widget icons and readouts.
The old quantified surfaceGrip item is now null and obsolete.
More information in the Shared Memory documentation.

GAMEPLAY:
- AI now make strategic decisions in FP sessions too.
- Fixed an error with AI pit time calculation with unscheduled pitstops.
- FP session length maximized at 60 minutes in Championship mode to be consistent with regular SP.
- Fixed all marshals waving checkered flag at Donington.
- Widget formation: row offset increase to remove potential advantage of outside lane on certain racetracks.

UI:
- Server list: corrected "no mid-race join" indicator - requires upcoming server update to be fully functional.
- HUD: weather widget visible even when viewing opponents.
- HUD: weather widget permanently visible on TAB leaderboard page.
- HUD: fuel selector in pitstop MFD page now has a slower acceleration through values when left/right held down.
- HUD options page: the margin selectors now accelerate faster through values when left/right held down.

 

Dear ACC racers!
ACC hotfix 1.7.5 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.5 changelog
GRAPHICS:
- Over-car labels: removed contact shadow and reflection influence and added lighting-dependent dimmer.
- Tweaks to night brightness, volumetric fog and wet material properties of new British tracks.

PHYSICS:
- Improved implementation of aerodynamic added mass effect. (It's complicated).

UI:
- Added active BOP group indicator on garage screen.

 

v1.7.6 changelog
PHYSICS:
- Shared memory: added currentTyreSet and strategyTyreSet.
- Capped tick frequency of automatic setup system to avoid unwanted oscillation at very high tick rates.
- Corrected occasional inconsistent camber conversion of default 2019 setup presets when loaded on 2020 track versions.
Minor balancing tweaks for the following GT3 cars and track categories (all 2020, unless IGT or BrGT):
- Honda NSX GT3 Evo at EU D
- McLaren 720S GT3 at EU C and BrGT B
- Lexus RC F GT3 at BrGT B and IGT E
- BMW M6 GT3 at BrGT B and D
- Bentley Continental GT3 at BrGT B
- Audi R8 GT3 Evo at EU A and EU C
Minor balancing tweaks for the following GT4 cars:
- AMR Vantage GT4 at EU D
- KTM XBOW GT4 at EU B, C, D2 and D3
- Ginetta G55 GT4 at BrGT B
- Alpine A110 GT4 at BrGT B
- Chevrolet Camaro GT4.R at BrGT B and D

GAMEPLAY:
- Eliminated rare interference of the Logitech Trueforce implementation with AI controller.
- Fixed checkered flag marshal at Paul Ricard waving flag prematurely at race finish.
- Race comm - adjusted strategy alert threshold for being on the wrong tyre compound.

UI:
- Added more race length options and combinations to custom race weekend mode.
- Fixed AI slider being mixed up in championship settings.
- BOP category indicator on garage screen made visible in Single Player sessions.
- MFD - removed driver autoselect feature in Multiplayer driver swap sessions.
- Tweaked DirectInput repeat-when-button-held activation timing in UI navigation.
- Tweaked HUD hiding/showing/cycling behaviour, fixed initial display of available HUD lists not populating.
- Replay - quickly hide control panel when clicking on empty screen area, do not pop up control panel when using the standings widget.

GRAPHICS:
- Added British GT windshield banner options for custom cars.
- Fixed British GT numberplate layout incompatibility with the Mclaren 570S custom liveries.
- Minor graphical fixes on the Porsche Cup car.

 

Assetto Corsa Competizione v1.7.7 hotfix update OUT NOW!

Dear ACC racers!
ACC hotfix 1.7.7 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.7 changelog

UI:

- MFD dash display widget now includes shift alert.
- Fixed track/season display in localization.
- Fixed repeating d-pad input in certain situations.
- Brake pad wear indicator threshold increased from 10.0mm to 12.5mm.
It is advised to replace brakes for the subsequent stint after the indicator is shown.
- Fixed MFD tyre set strategy reevaluation based on event rules.
- Avoid race command cascade for navigation bindings while multiple buttons pressed.

PHYSICS:

- Fixed in-car FF gain adjustment function not working in some scenarios after car takeover in driver swap races.
Minor balancing tweaks for the following GT3 cars and track categories (all 2020, unless IGT or BrGT):
- AMR V8 GT3 at EU B2 and D
- BMW M6 GT3 at EU B2
- Bentley Continental GT3 at IGT C
- Nissan Nismo GT-R GT3 at EU A, C and D
- Porsche 991II GT3 R at EU B and B2 and IGT D
- McLaren 720S GT3 at EU B, B2, D and IGT C and E
- Ferrari 488 GT3 Evo at EU A, B and B2
Minor balancing tweaks for the following GT4 cars:
- Ginetta G55 GT4 at BrGT A

GRAPHICS:

- Added Fanatec title sponsorship.
Added custom windshield banner and replaced the automatic override in generic game modes and MP.

 

Dear ACC racers!
ACC hotfix 1.7.8 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.8 changelog

GENERAL:

- Bonus Alpine Esports Series livery for Special Event hotlap competition.

GAMEPLAY:

- Removed 90-minute Free Practice length option from all championship race weekend types.
- Fixed gallery replay having permanent kerb sound in some situations.
- Fuel widget now shows per lap calculatation based on last 3 laps instead of session aggregate.

UI:

- Slow cars and cars with significant damage are now marked yellow on the track map.
- Fixed team logo stretching on the car selection page when season strip is hidden.

PHYSICS:

Minor balancing tweaks for the following GT3 cars and track categories:
- BMW M6 GT3 at BrGT A and IGT D
- Porsche 991II GT3 R at BrGT A and IGT D
- Mercedes-AMG GT3 and Evo at BrGT A
- Nissan Nismo GT-R GT3 at BrGT A and B

 

Exactly what I thought when i read that!

 

ACC hotfix 1.7.11 is out now on Steam, refresh your client in order to get the update.

___________
v1.7.11 changelog

GENERAL:
- Bonus livery for the "BMW Sim Time Attack" series.

PHYSICS:
Balancing tweaks for the following cars and track categories:
- Ferrari 488 GT3 Evo at EU D
- McLaren 720S GT3 at IGT D
- Audi R8 LMS Evo at IGT D
- Lexus RC F GT3 at IGT D

 

Dear ACC racers!

ACC hotfix 1.7.12 is out now on Steam with all liveries from the 2021 season, refresh your Steam client in order to download and install the update.
Please note that the hotfix includes a server version update, which can be downloaded here or via the Assetto Corsa Competizione Dedicated Server app on Steam.

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v1.7.12 changelog

GENERAL:
- All 2021 GTWCH EU full-season liveries added as bonus content.
- Bonus livery for the "BMW Sim Time Attack" series.
- Bonus livery for the Logitech McLaren G Challenge.
- Option in menuSettings.json to change the preloading of cars in the UI:
“carsPreloadMode”: 0=always, 1=never, 2=auto (default)
“carsPreloadLimitMB”: used when carsPreloadMode=2 to compare it with available video memory (cars preload is disabled if video memory is lower than the value set here) (default = 5000)
Legacy behavior: “carsPreloadMode”: 0,
NOTE: this setting is to save memory on systems with very low video and system memory to prevent freezes on game launch.

UI:
- Revised View Settings menu with pages for groups and undo function.
- Mirror settings now exposed in the new View Settings menu.
- Revised Gear widget with separated fuel, gear and pedals sections - visibility setting added in HUD menu options.
- Physical steering input now displayed in Pedals widget.
- Max framerate cap increased.
- Minor fix on Oulton Park track map.

GAMEPLAY:
- A fix to an inaccurate pit entry/on-track status at Oulton Park.

PHYSICS:
- Fixed erroneously high default brake bias value in Wet setup presets of the Porsche 991II GT3 R at IGT tracks.
- Porsche 991II aeromap adjustment to allow for slightly higher top speed.
Balancing tweaks for the following cars and track categories:
- Honda NSX GT3 at EU B
- Ferrari 488 GT3 Evo at EU D - further adjustments
- Bentley Continental GT3 at EU D

GRAPHICS:
- Fixed backlight on British GT numberplates.

 

Dear ACC racers!

ACC v1.8 major update is out now on Steam, refresh your Steam client in order to download and install the update!

____________
v1.8.0 Changelog

GENERAL:
- Updated project to Unreal Engine version 4.26.2.
- Added Fanatec GT World Challenge Europe 2021 season as bonus content with all entries, liveries and drivers and championship season.
NOTE: certain entries are subject to DLC ownership.
- Added all-new BMW M4 GT3 as bonus content as part of the 2021 season.
NOTE: as with any major update, game menu settings (stored in menuSettings.json) will likely reset on first initialization.
IMPORTANT: reloading of Video presets will be necessary.
IMPORTANT: it is strongly suggested that custom engine.ini modifications and other third-party plugins (graphics or controllers) be removed before installing the update.

GRAPHICS:
- Added Nvidia Deep Learning Super Sampling (DLSS) 2.0 support for compatible GPUs (RTX 20XX series or newer).
Please check manufacturer GPU driver requirements.
- Added AMD FidelityFX Super Resolution (FSR) support for all GPUs.
Please check manufacturer GPU driver requirements.
NOTE: both DLSS and FSR are selectable and functional in Triple Screen and VR rendering modes.
NOTE: DLSS is a temporal sampling method with a proprietary antialiasing solution, while FSR is a spatial upscaling method that can be used in combination with other Temporal AA solutions.
NOTE: please read the ingame help texts in the Video Options to learn more about the functionality of each method's respective sampling, antialiasing and sharpening solutions.
NOTE: DLSS implementation includes a custom DLSS dll version by Nvidia, manually updating to generic version releases might result in regression of image quality.
- Added Temporal Antialising Gen5 option support.
Offers improved aliasing and clarity at a moderate performance cost. Optional over the existing TAAgen4 and KTAA implementations.
NOTE: only functional with Temporal anti-aliasing mode selected.
NOTE: FSR is incompatible with the Projection Correction view setting feature.
NOTE: it is STRONGLY suggested to remove other open-source or third-party implementations of any of the features above (such as via OpenVR etc.)!
NOTE: due to the large number of changes in rendering, it is STRONGLY suggested that custom engine.ini or third-party shader modifications be removed for this update!
- Added the new rendering mode settings to save with Video Settings presets.
- Fixed a limitation with Triple Screen rendering that did not allow Temporal Upsampling to be used in combination with it.
- Updated global lighting and exposure on all tracks to follow Unreal Engine version changes.
- Updated visual tonemapper presets to follow Unreal Engine version changes.
NOTE: the updated tonemapper settings might produce slightly more saturation and contrast than in earlier versions, adjust per taste.
- Revision of various track-related shaders to follow Unreal Engine version rendering changes.
- Revision of various car-related shaders to follow Unreal Engine version rendering changes.
- Skybox revision to suit Unreal Engine version rendering changes.
- Optimized light emitters at Nurburgring for improved performance.
- Reduced bezel gap artefacting appearing along the bezel lines in Triple Screen rendering mode.
- Reduced SSAO and SSR artefacting around the bezel line in Triple Screen rendering mode.
- Updated TV, cinematic and free cameras to use the new Unreal Engine cameras with improved DOF effects.
NOTE: this is a global change, old cameras are deprecated.
- Updated CinemaHUD to use the new and improved DOF effects.
- Improved blurred wheel rim shader.
- Improved car spray effect, especially in light/medium wetness situations.
- Improved raindrop effect rendering logic to follow the updated spray effect.
- Improved rainfall shader appearance in external cameras.
- Car headlight shadow bias tweaks to prevent lights penetrating walls on close distance.
- Updated track HLODs.
- Added rotary switch animations, available with select cars.

GAMEPLAY:
- Added Open season, merging all game content into a "sandbox" season featuring grid customization.
NOTE: individual official seasons remain playable with no change to their earlier functionalities.
- Added opponent grid mixing option to Custom Race Weekend and Quick Race game modes in the Open season.
Use the grid mixing sliders to set car group prevalence in the grid.
GT3 car group has an additional setting for preferred generation of opponent cars (all, pre-2019 or new-gen).
- Added Open series championship mode with grid (car groups) and track lineup customization.
- Fixed multiclass championships not splitting points per car groups.
- Automatically generated custom cars are now grouped into teams both in single-make custom mode and Open series championship.
- Reworked driver assignment system to support custom-generated grids and various driver count requirements.
- Standardized entry and team ID system across the whole game content in support of the Open series grid generation and championship.
NOTE: it is recommended to restart ongoing championships, continuing pre-1.8 saves might not bring full functionality.
- Removed entry duplication between the 2019 GTWCH and IGT seasons.
- Fixed potential rule inconsistencies between official sprint and endurance game modes when played via Single Player and Championship.
This also fixes inconsistent auto-selection behaviour of the MFD in these sessions depending on game mode.
- Tweaked AI logic for strategic decisions reacting to weather changes.
- Fixed a potential issue with AI pitstop status when loading a saved game, causing cars to DNF.
- Improved AI genome at Bathurst, Barcelona, Laguna Seca and Kyalami to reduce the chance of unforced driving errors.
- Improved weather model: variability (=randomness in MP) now affects the variation and frequency of weather cycles:
Higher variability will now produce larger variation and less predictability in the length of individual weather cycles (time between peaks).
High variability might produce both fast changes or prolonged weather spells (or both combined) within the same weekend simulation.
Low variability will produce more even weather cycles, akin to the pre-update model.
- Revised skewed track limit definitions for Oulton Park that prevented correct gain calculation.
- Revised pit speeding thresholds that were often too permissive, both on pit entry and pit exit.
- Fixed invalid lap being eligible for personal and session fastest (purple) lap in race sessions (also in Multiplayer results).
- Overhaul of track limit warnings on wet track with its own dynamic, gain-based reference system.
- Added measures against irregular driving before the green light in Hotlap and Hotstint game modes.
- Fixed an issue with the Ferrari 488 GT3 (both versions) that resulted in an inconsistency in pitstop position versus other cars.
- Replay: revised replay tyre rotation matrix calculation to avoid misalignment between tyres and rim (and reduce disk space).
The improvement is backwards-compatible, while newly saved replays should occupy less disk space than before.

UI:
- Revised season selector header in Single Player menu.
- Added GTWCHEU 2021 season selection in Single Player.
- Added Open series selection in Single Player.
- Revised car selection page, added filtering per series lists.
Applies to both Open series and Multiplayer car selection page.
- Revised CinemaHUD interface and integration with DOF controls.
NOTE: DOF mode defaults to disabled when Free (F7) camera is toggled.
- CinemaHUD now toggles off when switching to non-free/F7 camera.
- CinemaHUD now hides automatically when entering garage page or exiting replay.
- Added coloured session labels in Replay menu.
- Added option to constrain the aspect ratio of TV cameras in wide or triple screen rendering modes to 16:9 (the centre of the screen) - find in General Options.
- Added session fastest (purple) lap holder indicator in standings, leaderboard and timer widgets.
- Updated MFD pit strategy (auto)selection logic:
Instead of automatic strategy increment after each stop, the strategy selection now does not change automatically but rather autoselects the next clean tyre set on the last active strategy.
When all tyre sets are used, the selection goes to the least used set. Manual selection override is still possible via the MFD. With this there is no longer need to preselect pitstop tyresets on the setup strategy page.
- Added pitstop indicator and session fastest lap on the leaderboard HUD overlay.
- Finer step increments for certain Video settings (exposure gain, image contrast, saturation).
- Showroom: ESC/back restores UI opacity when UI hidden by middle click instead of directly exiting.
- Showroom: added stance/camber to showroom cars and potential fix to precision error leading to inconsistent wheelbase when losing/regaining application focus.
- Statistics page: added option to clear personal best laptimes for a given car/track combination.
WARNING: this operation is permanent and cannot be undone.

 

PHYSICS:
- Physics engine optimizations: variable component tick frequency, optimized multithreading.
It results in smoother single player performance with high number of AI and fewer spikes due to overloading single cores on heavy calculations (such as simultaneous collisions).
Might not result in outright maximum fps gain, but a signfificantly lower single-thread occupancy and late steps can be expected, particularly with larger grids.
- 400hz physics refresh rate.
- Improved FFB.
- Improved tyre flex.
- Improved camber simulation, especially on high positive camber values.
- Improved Outside, Mid, Inside tyre heating relative to camber.
- Improved Outside, Mid, Inside tyre wear relative to camber.
- Improved camber gain simulation, affecting slip angles and forces. Evident with high camber values over kerbs and longitudinal bumps.
- Improved surface flash temperature tyre simulation. Wider range of heat generation.
- Improved heat generation in extreme conditions (burnouts, donuts).
- Improved heat generation relative to tyre pressure.
- Improved core temperature retaining. Tyres dissipate heat significantly slower now, no need to wait right until the last moment to go to grid.
- Completely revised and improved combined grip simulation.
- Completely revised and improved tyre vibrations at high speed and high slip angles.
- Improved slip angle/ratio simulation relative to cold and overheating tyres.
- New viscoelastic rubber friction model.
- Improved dynamic tyre characteristics in various temperature conditions.
- New rubber bumpstops damping simulation.
- Implemented bumpstops damping values for all cars.
- Improved engine throttle simulation.
- Improved launch control.
- Improved rev limiter behaviour (soft limiters on some cars).
- Improved traction control simulation.
- Improved brake ducts heating influence simulation.
- Improved rain tyres behaviour (note: not necessarily easier).
- Improved the simulation of brake efficiency and power.
- Improved track grip simulation on and off the racing line.
- Improved ambient vs. track temperature delta.
- Added a condition that simulates mist and dew during the night in certain temperatures.
- Improved certain track condition simulation, including the speed of puddle formation.
- Fixed Lamborghini Huracan GT3 and Huracan GT3 Evo front steer rod geometry.
- Fixed excessive rear bump steer on the Nissan GT-R GT3.
- Fixed excessive rear bump steer on the Lexus RC F GT3.
- Fixed an issue with setup boundaries.
- Added dedicated 2021 GTWCHEU season BOP for participant tracks.
- Added Open series BOP (currently matching the 2021 season BOP), functioning as a moving BOP with the latest seasons. Most importantly it also serves as the basis of Multiplayer BOP.
- Added 2021 British GT season BOP using the latest DHE tyres when a British GT-exclusive track is played through the 2021 season or the Open series (or Multiplayer).
- Updated IGTC BOP to use the latest DHE tyres when IGTC-exclusive tracks are played through the 2021 season or the Open series (and Multiplayer).
- Additionally, updated Mount Panorama to the latest available BOP when played through the 2021 season or the Open series (and Multiplayer).
NOTE: the original IGTC and British GT seasons in Single Player continue to use the original 2019 BOP with corresponding tyres that the original DLC packs recreated!

CONTROLS:
- Updated wheel manufacturers' SDKs.
- Added Thrustmaster SF1000 display support.
- Added Damper option under FFB settings - controls how much damping is allowed through the wheel driver's DI Damping setting.
- Increased FFB frequency steps to correspond with the global physics frequency update.

MULTIPLAYER:
- Revised car groups, merging the CUP and ST groups into a single GTC group for matchmaking and server filtering.
Note that CUP and ST remain represented as separate subgroups on the track map, leaderboards and results.
Results dump now also includes car group to allow better filtering when parsed.
- Stats: revised and merged grouping of statistics per race track.
Note that tracks are only separated per season where an older season might produce faster laptimes due to higher track grip (such as the fresh asphalt on Silverstone 2018).
- Stats: fixed an issue that had a tendency to generate unrealistic personal best laptimes.
Note that pre-1.8 incorrect PB laps can be cleared manually on the Statistics track breakdown page.
WARNING: this operation is permanent and cannot be undone.
- Multiplayer track seasons are now deprecated and all track configurations point to the Open series (currently matching the latest, 2021 season, see Physics notes).
Note for admins: the old season suffixes in the server configuaration will remain there for legacy functionality, but they will no longer create a difference in track/BOP version!
Server track configuration (event.json) should use the non-suffix version in continuation, e.g. "misano" instead of "misano_20XX".
Note for users: no matter the server config, Multiplayer will always use the latest Open series configuration from Single Player.
- Further revised final corner penalty thresholds with the widget formation type when the back of the field is likely to receive the green light inside or coming out of the final turn.
- Ratings: fixed an issue that could erroneously produce 100 (or 00) CC rating at Spa.
- Protocol change - old server versions are obsolete and will not register on the backend.

 

There have been a few hot fix's since the 1.8.0 release. Here is the latest.
Dear ACC racers!
ACC hotfix 1.8.7 is out now on Steam, refresh your Steam client in order to download and install the update.
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1.8.7

- Removed obsolete nickname entry from first-time driver info popup.
- Fixed inconsistent behaviour of steer assist with controllers.
- Fixed AI selecting wrong tyres in wet sessions.
- Fixed skip session function resetting ideal line wetness to fully dry, regardless of the conditions.
- Fixed potential session hang with high number of opponents at Spa.
- Fixed a potential crash scenario in saved games and weekend progression when the AI change setups.
- Corrected Ferrari 488 GT3 Evo engine power at Mount Panorama (IGTC A).
- Added Leaderboard overlay as bindable input.
- HUD: increased maximum range of safe zone (margin) width.
- VR: fixed flickering window in SteamVR when using spectatorScreenMode=0.

 

Dear ACC racers!
ACC hotfix 1.8.9 is out now on Steam, refresh your Steam client in order to download and install the update.
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1.8.9

- Potential fix for pitlane status and opponent invisibility getting stuck for opponent netcars in certain scenarios.
- Added 100Hz legacy option for FFB frequency for older wheels.
- Fixed an issue with mouse potentially stealing focus in the MFD and creating a double selection.
- Potential fix for compatibility with some older GPUs.
- Yellow flagged car on the track map now always shows on top.