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Release Notes for JMRI 4.99.7 release

Date: May 7, 2022

From: Bob Jacobsen

Subject: Test Release 4.99.7 of JMRI/DecoderPro is available for download.

Notes:

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 4.99.* test releases to migrate JMRI to Java 11. It requires Java 11 to work. (See our page on downloading Java 11) We expect this series to end in the next JMRI 5.0 production release at the end of Spring 2022. (See the tentative release schedule)

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

Update From Older JMRI Versions

If you are currently using a version older than JMRI 4.24, please follow these instructions carefully:
  1. Is your current version older than JMRI 4.12? If so, then update to JMRI 4.12 first, and ensure everything works correctly: check start-up, check things you need to be working, and check the JMRI log as well) before doing anything else. Store your configuration and panel files under a new name and use those from now on. Then continue with step 2.

    If you are currently using JMRI 4.7.3 or earlier on Linux or macOS (Windows doesn't need this), then it's very important that you update to JMRI 4.12 and carrying out the migration process described in the JMRI 4.12 release note before updating to any later release.

  2. Is your current version older than JMRI 4.20? Then update to JMRI 4.20 first, and ensure that works correctly (check start-up, check things you need to be working, and check the JMRI log as well) before doing anything else Save your preferences again. Store your configuration and panel files under a new name, use those from now on, and go on to step 3.
  3. Is your current version older than JMRI 4.24? Then update to JMRI 4.24 first, and ensure that works correctly (check start-up, check things you need to be working, and check the JMRI log as well) before doing anything else Save your preferences again. Store your configuration and panel files under a new name and use those from now on.
  4. You can then install this release.
Following this multi-step order of updating via stable major releases safeguards you against possible migration issues that can arise from skipping these versions.

New problems with this release

If that affects you, please either wait for JMRI 4.99.8, due out shortly after this one, or pick up the fix in a JMRI development build installer from Jenkins.

New warnings for this release:

Older warnings

See the JMRI 4.26 release note for more warnings predating the 4.99 development series, including pointers to various migration issues. These may be relevant to you if you're updating from an earlier version; we strongly recommend you update to JMRI 4.20 before installing this test release.

Download links:

Changes since Test Release 4.99.6:

The list of included changes is available from our GitHub code repository.

Hardware Support

CBUS

DCC++ and DCC-EX

LocoNet

MQTT

New / Updated decoder definitions

Digitrax

Doehler & Haas

MD Electronics

ZIMO

DecoderPro

Layout Editor

LogixNG

Operations

Panel Editor

Control Panel Editor

Turnouts, Lights, Sensors and other elements

Warrants

Web Access

Miscellaneous