Check out the announcement Panel 1.0 Release Candidate - Announcements - HoloViz Discourse
This release is really a big improvement of the foundation. But on top of that there are many new components and features. A few are below.
FloatPanel
A new floating panel you can use for widgets, text and everything else
Tooltips
You can now add tooltips to many of the widgets to improve the user experience
Live Documentation
The dev documentation](Overview — Panel v1.0.0rc1) is now live and interactive powered by Pyodide.
Swipe Widget
Compare images, plots, tables and more