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.

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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,

Assetto Corsa Competizione v1.7 is out now on Steam! Together with the brand new British GT Pack DLC.
The BRITISH GT PACK DLC brings all the action of the 2019 British GT Championship by SRO Motorsports Group to Assetto Corsa Competizione.

This new DLC pack features three of the most iconic racetracks from the UK:
- Donington Park Circuit
- Oulton Park Circuit
- Snetterton Circuit

https://store.steampowered.com/app/1493170/

Furthermore, the BRITISH GT PACK DLC adds more than 40 new liveries and 70 drivers from the 2019 season, together with a dedicated Championship season. The British GT season is accessible for all players of Assetto Corsa Competizione with base content, and with the corresponding game update (v1.7), all players can now enjoy mixed-class races under the British GT season selection.
The three new British tracks and the ability to select GT4 cars is exclusive to owning the BRITISH GT Pack and the GT4 European Series DLC, respectively. However, players who do not yet own the GT4 European Series and the BRITISH GT DLC packs can still enjoy mixed-class races on all base content tracks and race with GT4 opponents on the same track.

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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.

Dear ACC racers!
ACC hotfix 1.6.6 is out now on Steam, refresh your client in order to get the update.

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v1.6.6 changelog

PHYSICS:
- Adjusted setup wait time to prevent potential saving inaccuracy when making changes in large increments.
- Fixed asymmetrical values in Honda NSX GT3 Evo aggressive presets for Brands Hatch and Hungaroring.
- Adjusted Mercedes-AMG GT3 2020 fuel consumption for highest power map.
- Minor ground collision adjustments.

Dear ACC racers!
ACC hotfix 1.6.5 is out now on Steam, refresh your client in order to get the update.

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v1.6.5 changelog

PHYSICS:
- Fixed a potential issue with bumpstop behaviour.

MULTIPLAYER:
- Detection of unstable client connection and disabling of collisions to protect other clients.
Reduces the likelihood of race-ending collisions resulting from connection issues.

GAMEPLAY:
- Fixed missing certain visual custom car properties when watching a gallery replay.

Dear ACC racers!
ACC hotfix 1.6.4 is out now on Steam, refresh your client in order to get the update.

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v1.6.4 changelog

PHYSICS:
- Ferrari 488 GT3 (non-Evo) corrected erroneous engine assignment in Paul Ricard 2020 BOP.
- Fixed wrong wet tyre assignment for Porsche 991 GT3 R (2018) in 2020 BOP.
- Improved automatic setup calculation accuracy.
- Fixed occasional setup saving inconsistency with sloped spawn points.

GAMEPLAY:
- Fixed a duplicated championship entry in the 2018 season.

UI:
- Corrected season group of Zolder in the 2020 track selection menu.
- Minor correction in the CycleCamera binding in the controls menu.

Sim racers, we really need your support! The Steam Awards are GO! Please consider voting for Assetto Corsa Competizione in the category for Labor of Love.

Time is running out however, you've got until December 1st, 2020. Thank you!

Dear ACC racers!
ACC hotfix 1.6.3 is out now on Steam, refresh your client in order to get the update.

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v1.6.3 changelog

GRAPHICS:
- Fixed excessive exhaust flame probability of the Porsche Cup car.
- Fixed proximity-based auto-hiding of netcars in the pitlane in all sessions and car visibility settings.

GAMEPLAY:
- AI: increased AI qualifying pace in traffic scenarios.
- AI: improved ability to attack lapped cars.
- AI: reinstated and improved logic to facilitate lapping.
- AI: better ability to recover from spins that don't fully block movement.
- Fixed player-filtered highlights focus.

UI:
- Fixed savegame mixed content detection.

Dear ACC racers!
ACC hotfix 1.6.2 is out now on Steam, refresh your client in order to get the update.

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v1.6.2 changelog

GENERAL:
- Fix for a potential crash when loading multiple gallery replays.

GAMEPLAY:
- Potential improvement to general AI pace at high skill levels.

PHYSICS:
- Audi R8 GT3 Evo front damping motion ratio correction.
- Mercedes-AMG GT3 and McLaren 720s GT3 rear suspension motion range tweaks on extreme loads.

GRAPHICS:
- Fixed a missing LOD assignment for the Audi R8 LMS Evo.
- Removed flashing animation from the pitstop sign.
- Various livery fixes.
- Fixed an issue with opponent car LOD flicker when using mirror resolution settings.

UI:
- Minor localization fixes.
- Radar now always visible even when the HUD is hidden when enabled.
- Special Events DLC evaluation check.

Dear ACC racers!
ACC hotfix 1.6.1 is out now on Steam, refresh your client in order to get the update.

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v1.6.1 changelog

GRAPHICS:
- Various texture optimizations.

UI:
- Fixed MFD not updating when HUD hidden.
- Added Imola in MP track preference list.
- Hide pitlane cars filter in the realtime widget now defaults to disabled.
Legacy option added in the hud.json (realtimeStandingPitFilter).

CONTROLS:
- EnableManufacturerExtras is now a setting exposed in the UI controls page.
- Potential fix to the Logitech TrueForce implementation.
- Fixed controller bindings for Save Replay, Add Replay Highlights, Save Highlights

The 2020 GT WORLD CHALLENGE PACK DLC adds a new track, two new cars, more than 60 new liveries and the 2020 GT World Challenge season to Assetto Corsa Competizione. The DLC pack features:

- Autodromo Internazionale Enzo e Dino Ferrari - Imola
- Ferrari 488 GT3 EVO 2020
- Mercedes-AMG GT3 EVO (2020)
- 60+ new car liveries
- All 2020 GT WORLD CHALLENGE drivers and team entries
- New 2020 Pirelli "DHE" Tyre Model
- New 2020 GT WORLD CHALLENGE Season BoP

The 2020 GT WORLD CHALLENGE pack also comes with the version 1.6 game update that brings an improved AI algorithm and physics, in addition to some UI and performance improvements.

Get ready for the best Assetto Corsa Competizione action ever experienced.

https://store.steampowered.com/app/1449260/Assetto_Corsa_Competizione__2020_GT_World_Challenge_Pack/

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1.6.0 Changelog

GENERAL
- Added 2020 season with all entries, teams and drivers.
Bonus liveries that were previously added in the 2019 season now form part of the new 2020 season.
- 2020 championship, Mercedes-AMG GT3 2020 and Ferrari 488 GT3 Evo 2020 available as DLC.
- Imola circuit available as DLC.

GAMEPLAY
- New and improved AI algorithms for racecraft and attack.
- New skill-dependent AI driving error algorithm.
- AI: removed throttle lift by low-skill opponents when global AI strength is set to 90 or higher.
- Adjusted AI lines on several tracks.
- Increased sensitivity for blue flag trigger if a GT3 is behind a lower-class car.
- Brands Hatch marshal fix.
- Misano marshal fix.
- Nürburgring marshal fix.
- Lumirank: added yellow colour for Silver class cars.
- Marshal yellow sectors are now created based on centre position and not the starting point.
- More accurate sector yellow flag alerts.
- More sensitive yellow flag trigger for cars with stalled engines or facing the wrong direction, even at speed.

PHYSICS:
- DHE tyres available for applicable tyre dimensions for the 2020 GTWCH season.
Provides better feedback and more traction with less overheating.
Available when playing 2020 season. Older seasons retain their corresponding BoP and tyre versions!
- Wet tyre compound tweaks and fine tuning.
- Revised BoP system (backend) and added support for 2020 season BoP.
- Added camber limitations for BOP 2020 as per regulations.
- Global tyre model improvements in realignment forces based on new data.
- Improvements in the simulation of pressure dependency and its effects on the tyre footprint and related tyre dynamics.
- Aero yaw simulation improvements.
See our blog post on the official support forum for more detailed information on the above changes/improvements.
Old setups might need revision and it is generally recommended to run safer setups.
- Further improvements to the global weather model and dynamic track.
- Fixed Porsche 991II GT3 R Laguna Seca wet preset.
- Improved Ferrari 488 GT3 aero simulation
- Fixed rear brake pads in the BMW M6 GT3 Monza wet preset.
- Minor revision of collider meshes for certain cars.
- Adjustments to brake disc consumption (less).

AUDIO:
- User commands to increase/decrease master audio volume in session (default NUM+/-, remappable).
- Spotter message added alerting for faster car approaching.
- Improved spotter message system.
- New spotter messages for race pre-session countdown.
- FMod Studio: fixed continuous play/stop events.
- Thunder sound is now played already when heavy rain is on the forecast.

UI:
- Replay HUD: added results table overlay and button to toggle it. (sector times not available for lap-per-lap breakdown).
- Special Events page minor styling adjustments.
- Leaderboard: minor styling adjustment.
- Revised manufacturer logos for the UI and leaderboards.
- MFD: checkboxes toggle using left-right UI binding and ignore the enter/forward UI binding.
Freed up the "enter/forward" button for all controllers - so you can bind that to some other driving function as well on the wheel, the pitmenu checkboxes will only toggle with left/right - and in MP the forward/enter button (when pressed on a directinput controller) won't pop up the chat window (with electronics or pitmenu active).
- MFD: now always visible even when HUD is hidden (using HUD cycle long press), can be hidden by cycling to empty page or long pressing MFD input.
Now allows driving with MFD only with the HUD hidden, cycling MFD no longer unhides the HUD.
- Server list: track season tag is now always explicitly shown.
- Loading screens revised and removed obsolete track status information.
- Bindable inputs to increase/decrease FFB gain per car in session.
- Bindable inputs to increase/decrease master audio volume in session.
- Global UI styling refresh.
- Fixed mouse scroll function on the TV Session Time overlay.
- Localization update.
- Improved delta and predicted laptime accuracy.
- User setting in the hud.json added to disable automatic MFD page swap on pit entry/exit:
"autoSwitchPitMFD": true/false

GRAPHICS
- Mirror refresh rate settings in Video Options.
Option to set a fixed fps cap, a fixed rate cut based on current fps or "Auto", which is a dynamic setting.
- Global performance optimizations.
- Potential fix for virtual mirror clipping with geometry in some car cockpits.
- Added stop marker in the regular pitstop animation to help with car positioning.
- Revised pedal animation system and fixed an issue where the throttle pedal would occasionally remain stuck in pressed position.
- Optimized secondary animations in replay and spectator mode.
- Fixed National class sticker visibility.
- Added Lumirank SAS driver info device showing track/car status.

CONTROLS:
- Added FFB per car setting (default keys are NUM8 and NUM2 to increase/decrease, remappable).
Values are stored in a file called "ffbUserSettings.json", it is a multiplier on the global gain you set in the controls settings.
- Added gamepad rumble effect type enhanced/legacy options, legacy being the rumble implementation used to date.