WARNING :
- The CUDA version works only with old Nvidia cards and is not compatible from the Nvidia RTX3000 cards.
- When you install a new version, you don't need to uninstall the old one. You won't lose your settings.
- Each time you install a new version, you may need to delete the cache of your browser and restart it.
- Before updating JRT, check that your JRT update license doesn't expire before the date indication in orange above the version you are about to download.

NOTE : CUDA is only used for a specific setting of the photo mode and works only with old Nvidia cards. If you don't need it, it's better to install the version without CUDA that is lighter.

Click here to access to all the versions (with CUDA and/or before 2020/09/01)


If your JRT update license expires on 2025/09/01 or later

v1.56.0.1 Setup without CUDA - 14 September 2025
v1.56.0.1 Update without CUDA (If you already have installed v1.36.6.0 Setup without CUDA or newer)

- Fixed a bug that made JRT to crash at the start.

v1.56.0.0 Setup without CUDA - 13 September 2025
v1.56.0.0 Update without CUDA (If you already have installed v1.36.6.0 Setup without CUDA or newer)

- Added a missing logo for the bmw m4 g82 gt4 evo.
- Added a calculator option named "Threshold in seconds for the extra lap unexpected, in case the leader slows down during the last lap". This option is set to 10 seconds by default so the extra lap in this case will be added only if the leader is supposed to be 10 seconds or less ahead of you at the start of the last lap. Before this update, there was no threshold and the extra lap could be calculated even if there was almost no chance that the leader could slows down enough to get the extra lap.
- Updated the link to the series logo for the banner on the timing.
- Added a 'Session split number' element on the dashboard that displays your session split number and the total number of splits.
- The split number and the total number of splits is now displayed after the session type on the timing and the dashboard.
- Added an option for the 'consumption required' elements on the dashboard to use the difference with the last lap consumption for the Background/Font conditional colors values. This way you can change the Background/Font color depending if the consumption required is above/under the last lap consumption.
- Fixed an issue where the relatives gaps column on the timing could suddenly display the relative gap in laps instead of seconds.
- Added elements on the dashboard to display the amount of fuel you were able to save since the start of your stint compared to the amount of fuel you would have if your consumption was the consumption that was required to finish the number of laps set in the Pit Parameters at the beginning of your stint.
- Fixed an issue with some country flags.
- Improved the SOF calculations for team race sessions. It is adjusted with the drivers that are racing for the teams.
- Added an 'Estimated current Stint length' element on the dashboard. It is based on the calculations mode selected like the estimated laps value.
- Added an option in the Pit Parameters to bind a button to set the target stint laps number to the estimated current Stint length value.
- Fixed a bug that was causing the JRT server to be a bit too slow to start.
- Now the predicted position after the pit stop (orange circle) is calculated also when you are in the pit lane.
- Added an option to change the orange circle color transparency.
- The remaining laps value calculated by JRT is now adjusted when there is a white flag and that JRT predicted an additional lap compare to iRacing.
- Fixed a bug with the JRT class detection where the GT3 class was not detected anymore and replaced GT3 by GTD.
- Added an option to play a sound when you press a button set in JRT.
- Added the options to use your car class color for the 'estimated laps' and 'estimated laps header' elements on the dashboard.
- Added options in 'JRT Config/Other' to customize the car class colors and names for each iRacing Series/League ID.
- Added a 'Brake bias target' element on the dashboard for the GTP cars.
- The ABS element is now also the 'Brake bias migration' element on the dashboard for the GTP cars.
- The Peak Brake Bias element is now also the 'Brake migration' element on the dashboard for the F1 cars.
- Fixed some bugs with the Brake bias display on the F1 cars.
- JRT uses a new method to estimate automatically the consumption of the other cars by analysing the stints in the race sessions, depending of the track and if they are using wet or dry compounds. The data is saved in a data_conso.json file in "My Documents/Joel Real Timing". The old method was to use your own consumption and to transfer it to the other cars using a consumption ratio, but this method was not good to estimate a GTP consumption if you were driving a GT car. The old method is still in use until the stints are long enough. This new method is not used on oval because there is rarely a full stint in a race or in a practice so the consumption will almost be never correct. Note that the estimated consumption are used by JRT to estimate how many times the leader is supposed to pit to calculate the more accurately possible the remaining laps in time limited races.
- Added an 'Estimated consumption' column option for the timing pages.
- Fixed a bug on the timing page when using the 'Automatically turns off the autoscroll when you are not in the car' and the 'group by class' options, with the 'Maximum number of lines' option set to -1 to display all the lines when the autoscroll is OFF.
- Fixed a bug with the extra lap unexpected, in case the leader slows down during the last.
- Fixed a bug with the predicted finishing position.
- Fixed a bug with the stint value.
- Added predicted gap with the winner (class winner) options for the timing and the dashboard.
- Added options on the dashboard to display the name and best/last laptime for the virtual (class) winner.
- Fixed a bug where changing the colors for the drivers on a timing page had no effect on the other pages until you refresh them.
- Fixed a bug with the remaining laps value for laps limited races.
- Added the option "Don't display the half arrows when a car behind is in the middle" for the spotter page.
- Improved the calculations for time limited races.
- Added an option on the timing to display a column for the estimated number of pitstops.
- When using the launcher page with the option 'Make the switch between pages faster' deactivated, and if you change the class to be shown for a timing page, it will be saved when you switch to another page on the launcher and get back to it.
- Fixed a new bug with the iRacing update that made JRT to crash when driving a GTP car.
- Fixed a bug where the 'lap number for the last pit' value for the car selected was not visible.
- Added an option in JRT Config / Others to save all the data (basic data) for the timing when you restart the JRT Server with the button set in JRT Config / General Buttons.
- Added the new cars and tracks.


If your JRT update license expires on 2020/09/01 or later

v1.33.12.42 Setup without CUDA - 13 September 2025
v1.33.12.42 Update without CUDA (If you already have installed v1.28.0.27 Setup without CUDA or newer)

- Added the new cars and tracks.