Nissan GT-R GT1 v 1.47
- Chassis flex implemented and new steering parameters.
- CG increased.
- Downforce reduction and slightly less yaw stable.
- Slightly less downforce sensitive in slip-stream.
- Updated to use new tyre mass method and slightly more accurate unsprung masses used.
- Some tyre tweaks, mostly, but not limited to wear, load sensitivity as well as grip correction for wet conditions.
- Automatic shift aid works a little better (less reluctantly).
- You now also have to blip on down-shifts as per the real car.
- Minor AI tweaks.
- Additional radiator setting to prevent overheating in high ambient temperatures.
- ‘Central’ TVCockpit / bonnet camera.
- Tweaked headlight parameters should improve night racing.
- Now using newer sound attenuation parameters.
- LOD distance tweaks
- Updated to latest shader settings
- New driver helmet
- Additional teams / liveries added
- Rim Blur added.
- *There are additional minor undocumented changes.

Nissan 370z GT4 v 1.47
- 2 versions now available, European and Dutch, which more closely match rules from specific series.
- Chassis flex implemented and new steering system.
- Suspension and steering geometry revisions, that more closely resembles the real car (steering has an increase in ackermann).
- Caster range reduced.
- Slightly stronger suspension.
- CG increased, further forward and more laterally offset.
- Slight downforce reduction.
- Slightly less downforce sensitive in slip-stream.
- Minor setup tweaks.
- Gear ratios replaced.
- Brake system completely recalculated.
- Updated to use new tyre mass method and slightly more accurate unsprung masses used.
- Some tyre tweaks, mostly, but not limited to wear, load sensitivity as well as grip correction for wet conditions.
- Minor AI tweaks.
- ‘Central’ TVCockpit / bonnet camera.
- Tweaked headlight parameters should improve night racing.
- Now using newer sound attenuation parameters.
- Updated to latest shader settings
- New driver helmet
- Rim blur added.
- New team liveries added.
- Fixed reversed / mirrored logo on the side.
- Fixed wheel shadow height.
- *As usual there are some small additional undocumented changes.
- **Previous setups will likely be obsolete, but the car should no longer have major revisions in the future as data is more complete.

Chevrolet Camaro GT3 v 1.49
- CG raised
- Minor setup tweak
- Updated to use new tyre mass method and slightly more accurate unsprung masses used.
- Some tyre tweaks, mostly, but not limited to wear, load sensitivity as well as grip correction for wet conditions.
- Slight downforce reduction and drag increased.
- Minor AI tweaks.
- Small engine torque correction.
- Slight increase in shift duration, ignition cuts more correctly on upshifts also.
- Slight damage tweak (suspension a tiny bit stronger).
- Wheel / brake shadowing issue resolved
- Updated to latest shader settings
- New driver helmet

Chevrolet Corvette C6.R GT2 v 1.49
- Weight distribution adjusted.
- Force upshift ignition cut.
- More accurate steering range and lock including new variable steering ratio system.
- Updated to use new tyre mass method and slightly more accurate unsprung masses used.
- Slight geometry tweak.
- Some tyre tweaks, mostly, but not limited to wear, load sensitivity as well as grip correction for wet conditions.
- 2009 & 2010 spec engines available.
- Reduction in overall downforce level and slight increase in yaw sensitivity.
- Small AI tweaks.
- Slight damage tweak.
- Updated shader settings
- Fixed the rear diffuser shape
- Now using latest driver helmet
- Rim blur was added
- *There are additional small undocumented fixes not noted in logs.

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Update 26 (Build 859-unstable, 860-release) Changelog Sep 12, 2014):
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FEATURES:
————-
- Dropped support for Windows XP and Windows Server 2003 to make exploitation of state of the art Windows APIs possible.
- Added slightly more informative (as in, the actual file names that fail to load) logging to commentary loading.
- Ride height measurement (for aerodynamics and telemetry output) is no longer affected by vertical offsets in the undertray feelers. This was done so that the physics is more consistent between the player vs. the AI. This slightly affects the physics for the Nissan 370Z and it is possible that it affects some 3rd-party cars. Also, we fixed the HDV parameter CorrectedInnerSuspHeightRear to work with rear axles, and eliminated the hacky AIEvenSuspension and AITorqueStab variables.

BUG FIXES / OPTIMIZATIONS:
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- Fixed crash on exit.
- Fixed TrackIR in 64-bit.
- Forcing playerfile variables to exist between their min and max upon load from file.
- Fixed bug with English version of the game to make degree signs for temperature (°) consistent through out.
- Fixed bug with RCD editing from UI in dev mode so we now create drivers (that exist in the veh file) that don’t exist in any RCD file.
- Reduced some violent collisions caused by tiny gaps in the wall.
- Prevent physics blow-ups caused by negative wheel inertias.
- Fixed possible crash at shutdown.

MULTIPLAYER:
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- New dedicated server UI added as an option in the advanced tab. It can be used to start quick pick up races based on settings made by the conventional dedicated server.

MODDING / PUBLIC DEV:
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- Modmode: Fixed pit location picking resetting the menu every time a location is recorded.
- Improved AIW editor waypoint by waypoint calculated speed matcher. It’s now less likely to get confused and auto advances the selected wp in the direction you are (or should be) working.

AI:
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- Added an “AI setup” button to the “car tuning” page so that one can set the upgrades the AI should use for a specific track.
- Can set AI setup (select the AI from the grid, then select the setup you want from the garage, and hit the set to AI button), and it takes next time the car enters the garage
- Made the AI speed reduction due to darkness start at 0.5 light instead of .99. Made player car under AI control operate at %100 speed instead of being based on original driver rcd stats
- AIs now turn off engine when heading back into garage.
- Fixed a bug where AI can forget how to stop on their pit spot.
- Changed “AI Setup” button so that user dictated setups can’t overwrite upgrade configurations dictated by component. Renamed it to “Force Setup”, because it’s not just AI that are forced to use this setup, but the player as well.

FEATURES:
————-
Added code to allow non-linear analog gauges.
Added some feedback to 3 AI parameters to dev mode AIW editor (corner caution:, understeer throttle cut:, understeer lat) so that you can watch in realtime as they have an effect.
New Launcher UI.
New remote content package manager integrated with Launcher UI.
Simplified activation process.
Sync Manager now restarts Launcher after update installation with original permissions.
BUG FIXES / OPTIMIZATIONS:
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Fixed intermittent crash on vehicle load.
Fixed rain volume which became too loud for some reason.
FXAA fix for monitor.
Fix for extraneous window in ded server mode.
Possible fix to 1st time failure downing vmod install failure on game connect in cases where vmod and components already downloaded but not installed.
Set lower default spotter volume.
Changed the small rfm, veh, and track main page display buttons to not load an image if their image size is set to 0 in either dimension. This is to prevent crash if a UI should have them on the same page as one of another gizmo that uses those assets (and destroys them).
Fixed bug with options not always remembering rfm/vehicle/track list/menu preference.
Fix for replays not loading some *.mas skins. (skins shared over multiplayer may still not load)
Potentially fixed names running over the HUD menus with a new HUD parameter & a fixed algorithm.
Fixed 64 bit Dev Mode inablity to save AIW files.
Fixed a potential crash upon starting AIW editor.
Fixed pit menu selected box from being too small in some cases.
Fixed HUD message center messages from extending beyond the box in some cases.
Fixed bug where virtual vehicles created with a *.mas loose skin file instead of a *.dds skin file wouldn’t show the correct skin in the spinner or on track.
Fixed a rare buffer overrun error in track name text display.
Changed replay letterbox to extend the entire width of the screen instead of just inside the options extent.
Attempted fix for occasional vehicle load/unload loop that appeared to cause network lag.
Fixed some multiplayer “Get Mod” issues with downloading/installing components and cleaned up the UI to be more readable.
UI / HUD / OPTIONS:
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Added APP_TextValue_GarageTireLoad_FrontLeft, APP_TextValue_GarageTireLoad_FrontRight, APP_TextValue_GarageTireLoad_RearLeft, APP_TextValue_GarageTireLoad_RearRight Gizmos back. (not yet used in default options)
Created gizmos for replay mode, length and current position. (not yet used in default options)
Renamed “binkanimations” to “genericanimations” since they not longer use bink
Added HUD parameter for pit menu maximum length.
Added an “instant update” parameter to vehicle and track lists for options that forgo the “accept”/”cancel” mechanism.
MULTIPLAYER:
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Broke up installing of downloaded components on multiplayer join so that the options have a chance to update and get a little bit of ui feedback to the user about what the game is doing
GRAPHICS
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Modified scene post-gamma value to improve color balance.
Ambient boost removed, no longer needed with improved scene gamma.
Improved some HDR automation parameters.
HDP files now deprecated and are disabled by default. HDP files can still be enabled via the plr file option ‘Enable Legacy HDR Profiles’.
Removed specular floor value, which was causing incorrect highlights at night.
CONTROLLERS / FFB:
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Added a Controller.JSON value “Steering Torque Capability” in order to specify the strength of strong FFB wheels (like direct drive). If this is set properly, and it exceeds the NominalMaxSteeringTorque for a given vehicle, it allows a 1:1 correlation between the calculated torque and the actual FFB torque. (However, note that we still don’t model power steering, so the calculated torque is stronger than it should be for some vehicles.)
Increased the number of buttons per controller supported.
MODDING / PUBLIC DEV:
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Updated the component mas file loading (for tracks only) to remove irrelevant layout mas files.
Dev Mode: When editing AI driver parameters we now change the driver to match selected car in the editor window automatically when bouncing between cars
PLUGINS:
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Set the mLastImpact* variables in the telemetry plugin interface.
Made plugin interface to add chat messages work on dedicated servers.
Fixed a few things with the Internals Plugin weather interface, and added a new option to apply cloudiness instantly.

FEATURES:
————-
Added option to screenshot directly to clipboard, PLR file entry now called “Screenshot format”.

BUG FIXES / OPTIMIZATIONS:
————-
Fixed multiplayer race rejoin.
Fixed heat haze bug for non-HDR mode.
Fixed Modmgr bug where a deleted package file would still appear in list.

UI / HUD / OPTIONS:
————-
No longer reset widescreen UI config parameter when applying graphics changes.

Furthermore, the studio has also released a new and improved version of the Clio Cup car:

Clio Cup v1.51 changelog (from v1.41):
– Switched to ‘WheelsIncludeAllTireMass’ fix.
– Moved to UltraChassis with flex, and slightly better geometry.
– Better motion ratios on account of newer push-rod parameters and slightly soften front ARB to what should be a more realistic level.
– Misc tyre tweaks, more detailed lookup table and extra nodes should make them more accurate over a wider range of conditions. Wear has also been reduced.
– More realistic front and rear brake fade characteristics.
– Auto ignition-cut on upshifts.
– Maximized under tray collision points (up to 12 from 6).
– New steering system.
– Increased CG (on account of better data).
– Auto-clutch more useful (more aggressively adjusted).
– Damage tweaks (slightly stronger suspension against mild contacts).
– Updated shaders.
– Updated driver model.
– Tweaked headlight parameters.
– Liveries replaced/updated/added, all built against an improved template.
– Updated icons.
– Updated to use latest internal / external sound attenuation variables.
– Updated to newest camera standard (centered bonnet cam, etc) and removed a couple excessive cams.
– Minor AI tweaks to correlate slightly closer to player physics.
– Removed some now obsolete lines.
– Plus other miscellaneous tweaks.