JMRI 3.4 - Production release
If you've never installed a version of this program before, please read the installation guide (on the left) for your computer type and layout hardware. They will show you how to install the things that are needed before the program will run.
See also the page of layout connections.
If you've previously installed a working version of the program, you only need to download and install one of the files listed here.
- Mac OS X: https://sourceforge.net/projects/jmri/files/production%20files/JMRI.3.4-r23744.dmg/download
- Windows: https://sourceforge.net/projects/jmri/files/production%20files/JMRI.3.4-r23744.exe/download
- Linux: https://sourceforge.net/projects/jmri/files/production%20files/JMRI.3.4-r23744.tgz/download
For more information on the release contents, please see the release note.
JMRI - Developer releases
As the program develops, we also produce test versions. You may want to try these, as new features will show up in them first. They are announced in the JMRI users email group.
The most current test release is JMRI 3.5.6. More information on it, including the links to download a copy, can be found in release note.
For more information on the rough development schedule, please see the JMRI road map (which is only occasionally updated).
Other Related Items
Sun's Java Runtime support [more]
The Crandic Automated Traffic System (CATS) is a JMRI-based application by Rodney Black for controlling and operating a model railroad. There's more information on the CATS web site.