JupyterLab 3.6.0 is released!

JupyterLab 3.6.0 Release

Here are the new cool features available in JupyterLab 3.6.0:

  • Real-time collaboration rework
  • Notifications
  • Terminals enhancements
  • Various highlights
  • Performance improvements

The full changelog is available there.

:busts_in_silhouette: Real-time collaboration rework

The major work done for 3.6.0 is an important rework of the experimental real-time collaboration feature.

In real-time collaboration mode, the current user identity is
highlighted in the top right corner. And you can see all connected
users in a new side panel. You can even click to their name to jump
their current position.

See the documentation for more information and requirements.

:mega: Notifications

Notifications in JupyterLab are now a thing. At start up, you will notice a toast asking your consent to get news from Jupyter and to check if an update is available:

An annoucement will only be shown as a toast the first.

Announcements feature

More information to customize the behavior can be found there.

You can disable this popup either by creating an overrides.json file with:

  "@jupyterlab/apputils-extension:notification": {
    "fetchNews": "false"

Or disabling notifications plugin altogether by running:

jupyter labextension disable "@jupyterlab/apputils-extension:announcements"

:desktop_computer: Terminals enhancements

  • New context menu entries to copy and paste (support varies between browsers)

Copy-paste terminal selection

  • Links are now clickable in the terminals.

Hoora to Mladen Gibanica for contributing with this feature.

Links in terminal

:sparkles: Various highlights

:racing_car: Performance improvements

  • Improved performance of menus which are now positioned in compositor
  • Improved output rendering times
  • (opt-in) Faster tab switching

To enable faster tab-switching on Chromium browsers (and experimentally on latest Firefox version) you can go to “Settings” → “JupyterLab Shell” and switch the “hiddenMode” to “contentVisibility”. Feedback on performance and behaviour of this feature is welcome.

Edited to add how to disable the pop-up and to add performance improvements section


You can try real time collaboration on Binder :arrow_right: Binder

  • Real-time collaboration rework is not shown for us while * Notifications are shown. Users icon is not shown, we are using Azure AD enabled with jupyterhub. is that the reason it is not shown?
    Please respond.

Real-time collaboration is an opt-in feature as described in the documentation linked in the post above which also contains the list of requirements and actions needed to enable it: Real Time Collaboration — JupyterLab 3.6.1 documentation

If something does not work please open a new issue on jupyterlab repository GitHub following the bug report template and providing all details needed to understand your problem.