jupyterlab 4.6.4

v4.6.4

on Python PyPI

4.6.4

(Full Changelog)

Security fixes

• GHSA-3325-v43h-43rv - moderate
• GHSA-6966-vjj6-99xv - high
• GHSA-jwrc-gm9j-263p - moderate
• GHSA-3jqq-pw4j-pqcj - moderate

Bugs fixed

• Backport of security patches on 4.6.x branch #19793 (@krassowski, @MUFFANUJ)
• Cache and throttle path resolution to avoid requests storm #19726 (@krassowski)
• Fix race when starting the search - keep correct filter #19765 (@krassowski)
• Fix PyPI extension manager package.json inspection for tar.gz archives #19613 (@MUFFANUJ)
• Fix resizing optimization for larger notebooks #19620 (@krassowski)
• Preserve kernelspec metadata when spec is unavailable #19247 (@tomatotomata)
• Fix respecting commsOverSubshells option in connectTo() #19734 (@krassowski)
• Show context actions for all images, not only SVGs #19618 (@fly1d)
• Save sidebar section expansion state from the hidden flag #19415 (@jtpio)
• Fix memory leak when Property Inspector is open and other issues exposed by new linter rules #19318 (@krassowski)

Maintenance and upkeep improvements

• Update links to jupyter-ydoc API after docs pages moved #19790 (@krassowski)
• CI: align Yarn cache configuration #19737 (@zihjiang)
• Use Galata filebrowser helpers in tests #19645 (@Darshan808)
• Disable subshell usage in comm example #19725 (@krassowski)
• Remove pin to old ipykernel v7 pre-release in UI tests #19672 (@krassowski)
• Update Altair snapshot #19488 (@jtpio)
• Use ui-test-report-comment action from maintainer-tools #19290 (@krassowski)
• Backport PR #19307: Update @jupyter/eslint-plugin to v1.1, adopt ne… #19315 (@krassowski)
• Update the copyright year to 2026 #19308 (@JussiRoos)

Documentation improvements

• Fix the IPython display link in the json-extension README #19732 (@jtpio)
• Update announcement banner to point to jupyter-wide announcement banner #19189 (@jasongrout)

Contributors to this release

The following people contributed discussions, new ideas, code and documentation contributions, and review.
See our definition of contributors.

(GitHub contributors page for this release)

@Darshan808 (activity) | @fly1d (activity) | @jasongrout (activity) | @jtpio (activity) | @JussiRoos (activity) | @krassowski (activity) | @MUFFANUJ (activity) | @tomatotomata (activity) | @zihjiang (activity)