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

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)