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Release Notes for JMRI 4.24 release

Date: July 9, 2021

From: Bob Jacobsen

Subject: Test Release 4.24 of JMRI/DecoderPro is available for download.

We are very pleased to announce that the 4.23 series of JMRI test releases has resulted in a version that's good enough to be recommended for general use, including by new users. We're therefore making that version, "Production Release 4.24" available for download today.

Notes:

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 4.20, 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 relese.

  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 Store your configuration and panel files under a new name and use those from now on.
  3. 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.

Known problems with this release

New warnings for this release:

Older warnings

See the JMRI 4.20 release note for more warnings predating the 4.21 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 installing this test release.

Download links:

Changes since production release 4.22:

This production version is made from test releases 4.23.1 through 4.23.8. The full list of changes in those is available from our code repository.

Hardware Support

CBUS

DCC++ and DCC-EX

LocoNet

MQTT

OpenLCB / LCC

  • JMRI will now respond to the Global Identify Events message as the standard requires.
  • SPROG

    Uhlenbrock Intellibox

    New / Updated decoder definitions

    Doehler & Haas

    ESU

    LDH

    PIKO

    TAMS

    Tam Valley Depot

    ZIMO

    Control Panel Editor

    CTC Tool

    Dispatcher

    Layout Editor

    NX - Entry/Exit Tool

    LogixNG

    • LogixNG (Logix Next Generation) is a new way of adding logic to the model railroad.
    • Add Actions and Expressions for Blocks.
    • Add Actions for labels and icons on panels.
    • Add support for WhereUsed bean usage searches.
    • Add WhereUsed reports for Blocks and Sensors.
    • Implement Clock Action and Expression

    PanelPro

    Preferences

    Roster

    Scripting

    Signals

    Signal Systems

    Cab Signals

    Simple Signal Logic

    Throttle

    Turnouts, Lights, Sensors and other elements

    Virtual Sound Decoder

    Where Used

    Miscellaneous