Release Notes for JMRI 3.1.1 release

Date: August 19, 2012

From: Bob Jacobsen

Subject: Test version 3.1.1 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 3.2 production release.

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:


Older warnings

This release, and all other releases in this cycle, require Java 1.6.

Known problems with this release

The following problems are fixed in JMRI 3.1.2, which you should use instead of this release.

Digitrax PR3 Standalone mode is missing from the connection details.

Certain existing preference files won't be found, requiring you to re-enter your preferences.

Download links:

Please use these links for downloading:

Mac OS X:



Changes since production release 3.0

Kevin Dickerson made the following changes

Dan Boudreau made the following changes to operations:

Gregory Madsen made the following changes to operations:

Robin Becker added xxx-blink-web.gif icons with correct frame delays and dimensions for web and panel use.

Steve Todd made the following changes:

Stephen Lowens:

D Heap:

LokSound V4.0 Decoder CV249 (Min Steam Chuff Distance) was inadvertently assigned to CV248 instead of CV249. Also some others I wanted were missing, so I added CVs 47,48,51,122,123,129,130,133,250,255, which were the ones missing but present in LokProgrammer 4.3.3 and present in LokSound V4.0 Instruction manual 4. Edition, May 2012 from firmware 4.6. CV131 appears to be obsolete but I did not remove it. Had to move a few option numbers up and down to fit all on to existing panes.

Clint Taylor added code to allow function buttons to work within the Loconet Slot Monitor.

John Crellin updated several MRC decoders and provided a new definition for the MRC 1905.