A new build is available:
http://rfactor.net/web/2014/04/15/rfactor-2-build-660-new-touring-car-demo/
rFactor2 Build Notes
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Update 23 (Build 659-unstable, 660-release) Changelog April 14, 2014):
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GRAPHICS:
Added texture sharpening option to plr file allow mip lod bias adjustments (alt-m no longer required)
BUG FIXES / OPTIMIZATIONS:
Made presets actually available in RealRoad gizmo for tracks besides the first one loaded.
Fixed scoreboard tower code.
Fixed a newly-introduced crash if there were no trackside cameras.
Fixed potential crash if transparent trainer is enabled on client.
Fixed it so trace.txt doesnt go to VirtualStore.
Fixed minor memory leaks.
MODDING / PUBLIC DEV
Report some inner tire temperatures to plugins.
Computed some missing telemetry info.
Added some replay control to the plugin interface.
MULTIPLAYER:
hooking up skin download/upload progress bar to the actual transfer library progress
Implemented a likely improvement in multiplayer collision.
AI
If AI has front wheels off the track pauses any steering changes until wheels back on the ground.
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Update 22 (Build 589-unstable, 590-release) Changelog (March 18, 2014):
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GRAPHICS:
Fixed bug with HDR lum histogram when in SLI mode
Fixed 3D Vision problem with tire shader
Added extended ambient shadows under cars
Modified EnvReflections = Off mode to render only sky/clouds into ref map
FEATURES:
Added +memstats cmdline option to output memory usage file
BUG FIXES / OPTIMIZATIONS:
Fixed crash on MP lobby UI page
Fixed an issue with duplicate mas names during packaging; incorporated mutex stuff into masBase to allow toggling of mutex requirement during mas object creation
Fixed bug where 1st time running after fresh install keyboard and controller support will be disabled.
Fixed a potential problem with upgrades that adjust gear settings.
Fix issue where sometimes shadows were fuzzy in cockpit until you hit Insert three times.
Fix for sidebars not clearing when exiting replay mode directly from control screen.
Fix for issue where a vehicle is constantly loaded/unloaded in multiplayer when they have a special skin
MODDING / PUBLIC DEV
Added Copy To Clipboard button to TTool.
Fixed viewer.exe crash
Corrected rFactor Mod Mode.exe UI
Fixed lockup when mouse is moved in mod mode
UI / HUD / Options:
Added a button to manually transfer loose livery file, so that you may update the servers copy or get the latest version of the livery stored on the server.
Disabled Mod button if server and client version do not match.
MULTIPLAYER:
Fixed +oneclick crash
Fixed join button greyed out issue
Message box shown if dedicated server is stated with oneclick but no mod is loaded
Reduced likelihood of problem in non-race multiplayer sessions where vehicles that joined late would usually not load.
CONTROLLERS / FFB
AI
Preventing driver database from growing much larger than it needs with duplicate entries
Loading custom paths from the loose track directory (*.aip files contain info for a single path)
Small change attempting to reduce AI tendency to stay behind a slower car.