From the CHANGELOG:

• embed zstd added (1.5.5)
• updated lz4 updated to 1.9.4
• PlotJuggler with Fast-CDR-2.x.x (#932 <https://github.com/facontidavide/PlotJuggler/issues/932>_)
• fix an important bug in ROS2 parser, that prevented special messages from being identified.
• fix #935 <https://github.com/facontidavide/PlotJuggler/issues/935>_ and #934 <https://github.com/facontidavide/PlotJuggler/issues/934>_
• Add Sample Count to transforms
• fix compilation in Windows

Contributors: Davide Faconti, Manuel Valch

Quick file reload button

Repeat the last Load File operation, without triggering a popup Dialog.
Fast and straightforward to use!

ULOG improvements

Not the parameters are store as 1 sample timeseries in PlotJuggler and are therefore accessible in the Lua.
Feature sponsored by https://sky-watch.com/

Transform widgets will now retain the last value

I found myself changing those parameters by hand too many time and I am sure the same happened to you

Fix JointState messages in ROS

See pull request #927

Offer a parameter in Preferences to ignore numerical truncation

DANGER: use it at your own risk. Read the discussion here https://github.com/facontidavide/PlotJuggler/issues/929

• support std_msgs/Empty (fix https://github.com/facontidavide/PlotJuggler/issues/924)
• Allow ZMQ plugin to work as server
• fix issue https://github.com/facontidavide/PlotJuggler/issues/926: CSV timestamp
• attempt to match ambiguous ros msg

... and some other changes

Recently I have found myself comparing multiple rosbags / MCAPS a lot.

It was always possible to do this, selecting multiple files in the dialog, but I realized that if it is cumbersome if only one of the two files changed and you want to reload that only.

With the addition of the checkbox below, you can now do the same, even when loading files one by one.
When checked, you will be able to add a prefix to the loaded timeseries and the dialog asking if you want to delete the previous ones will be skipped.

Fixed some issue recently introduced in the new ROS parsers

Fixing some regressions related to ROS parsing. Please update

The main change introduced in this release is the support for DataTamer, a library that makes recording data in your application easy and efficient.

https://github.com/PickNikRobotics/data_tamer

The best way to use DataTamer and PlotJuggler is using MCAP files, but more options will be shared soon (ROS topics should work soon).

Also, we removed the redundant code between PlotJuggler and the ROS plugins (version 2.0+ should be used in the future).

fixing a critical bug introduced in 3.7.0

Noteworthy changes

• Handle protobuf maps (https://github.com/facontidavide/PlotJuggler/issues/824)
• Add progress dialog to MCAP loading and better error messages
• Faster file loading, in particular for large files!
• Prevent runtime_error exceptions from plugins crashing the main app (https://github.com/facontidavide/PlotJuggler/issues/812)
• Add a "central difference" method of derivative calculation (https://github.com/facontidavide/PlotJuggler/issues/813)
• Fix the bug where the shared library Parquet is not linked (https://github.com/facontidavide/PlotJuggler/issues/807)
• Fix for segfault in DataLoadCSV destructor (https://github.com/facontidavide/PlotJuggler/issues/784)
• Fixing nan check (https://github.com/facontidavide/PlotJuggler/issues/777)
• Update Reactive Scripts on playback loop (https://github.com/facontidavide/PlotJuggler/issues/771)

This is an exciting release that features a massive refactoring of the MessageParse base plugin.

This change was necessary to exploit the flexibility of MCAP, a new supported file format that is protocol agnostic.

A new parser able to decode both ROS1 and ROS2 messages has been introduced. Currently it works only with MCAP.
This parser uses the library rosx_introspection.

• Finally, PlotJuggler can be installed using Snaps!
• Fixed some issued with the Fast Fourier Transform toolbox
• Improved compilation instructions and dependency management (conan and vcpkg) in Windows.
• More configurable Zoom Out.
• More bug fixes

• Contributors: Bartimaeus-, Davide Faconti, Guillaume Beuzeboc, Hugal31, ozzdemir, grekiki

New License

I switched from LGPL to MPL-2.0 to make it easier to develop proprietary plugins.
Please remember that, if you modify an existing file in the code of PlotJuggler, you still need to release those modifications.

Background colors

This is a very exciting new feature: you can highlight a portion of your plot using a background color based on the value of a timeseries. Potential applications:

• Link a "state" series to a set of colors, to show visually the state.
• Notify when a certain value exceeds a pre-defined threshold.

Statistics dialog

Very simple floating dialog that display some basic statistics about the data in the visible region of a plot.

Few PR have been merged, mostly related to CSV.

New Lua Editor

Another notable improvement is in terms of the Lua scriting:

It provides syntax highlight, autocomplete, auto-indent and line numbering, thanks to https://github.com/Megaxela/QCodeEditor

Parquet Plugin

A new Plugin that support Arrow parquet file is also introduced, but it will be compiled only if parquet-devel is installed in your system.
https://arrow.apache.org/install/

1. Improved MQTT plugin, sponsored by Fuzzy Logic Robotics.
2. Now you can flip the vertical and horizontal axis of XY plots (sponsored feature)

This new release fixes a number of bugs:

• Quaternion toolbox fixed #587
• Segfault when canceling CSV import #585
• Segmentation fault on exit #560

But the most important feature is the one described here: https://slides.com/davidefaconti/plotjuggler-reactive-scripts/fullscreen

Enjoy!

See changelog for more info.

This is another pretty big update!

It will break ABI/API compatibility with other 3rd party plugins, therefore you will need to recompile them. But I promise it is worth it!

This versions introduces a new family of plugins, called "Toolbox", that allows the integration of a Widgets into the app. These widget can analyze, preview and transform data.

Version 3.3.0 contains two toolboxes:

• Fast Fourier Transforms, sponsored by https://www.dji.com/
• Quaternion to Roll Pitch Yaw.

The CSV Importer plugin has been considerably improved, too.