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Release Notes for JMRI 3.9.3 release

Date: September 13, 2014

From: Bob Jacobsen

Subject: Test version 3.9.3 of JMRI/DecoderPro is available for download.


This is a test release. Please post a note if you encounter any new or old bugs! And please back up your JMRI files before installing this, in case you want to go back to an earlier version.

This is the next in a series of test versions. We expect this series to end in a JMRI 3.10 production release around the end of 2014.

Some of the changes involved are quite extensive. They may require a certain amount of experience before they are working well. Therefore, this test version should be considered experimental.

JMRI is now only available under the GNU General Public License. For more information, please see our copyright and licensing page.

New warnings for this version:

RFID support has been changed to allow for additional protocols - existing CORE-ID readers should remain unaffected but, in certain circumstances, it may be necessary to update connection configuration with the correct protocol.

The activation.jar library is no longer included with the JMRI download. This shouldn't have any impact on you, but it's remotely possible that it might impact you if you have your own Java code that you're combining with JMRI and/or you're still using a Java version before Java 1.6. (Scripts and panel files will not be impacted.)

Images associated with roster entries are now saved to the roster directory instead of the resources directory when added to the roster entry. Existing images are not moved.

The JMRI 3.9.* releases series, including this one, and JMRI 3.10 (expected in December 2014), will be the last JMRI releases that will work with Java 1.6. To use any later JMRI test or production releases, you'll have to update the Java on your computer to Java 1.8 or later. All JMRI releases 3.9.3 and later are tested on Java 1.8, so you can do the Java update now if you want to.

Older warnings

The XmlIO web service has been deprecated and is scheduled to be removed in JMRI 3.11 (July 2015). All users and developers who are relying on direct access to the XmlIO API are recommended to begin using the JSON API. inControl web throttle users are recommended to begin using webThrottle instead, or to plan on investing in devices that can support webThrottle, WiThrottle for iOS, or Engine Driver for Android.

Known problems with this release

None at the time of this release.

Download links:

Please use these links for downloading:

Mac OS X:



Changes since test release 3.9.2:

The Speedometer now handles international format input. If you live in a place where decimal numbers are written like "1,3" and JMRI is set to that locale (see the Locale section on this page), then you can use commas for the decimal mark when inputting the distances. We'll be updating more parts of JMRI to do this in the future.

The AAR-1946 and B&O-1957 signal system definitions had some internal problems fixed. This shouldn't cause any problems for people using them, but we can't be 100% certain. If you're using these, please check to make sure your signals are still working OK, and let us know if they're not.

Removed the activation.jar library, along with various references to loading it. This is no longer needed since JMRI now requires Java 1.6 or later.

System Support

Some improvements to the support for MRC command stations via the Prodigy USB computer interface.

This is the first series of JMRI to support the Roco Z21 command stations via its built in network connection.


New / Updated decoder definitions

Much work on improving the structure of the files, which has resulted in some internal changes.

Improvements to the Italian translation.

Added Digitrax SFX006 & DN166I2B definitions (Alain Le Marchand)

Added Soundtraxx Tsunami definitions for:

Added MyLocoSound DCC decoder definitions (Alain Le Marchand)

Robin Becker updated the Tam Valley Depot Quad-LN_S stationary decoder to add a Reset menu item when using the Service Mode programmer.

Dave Heap made the following changes to the Function Map:



Dan Boudreau made the following changes to operations:

JSON and Web Throttles