jupyterlab

4.5.0b1

(Full Changelog)

Enhancements made

• Show execution count in breakpoints, callstack, and sources panels while debugging in console #18003 (@arjxn-py)
• Make DocumentManager dialogs customizable #17961 (@Darshan808)
• Systematise how base URL is obtained to allow swapping it more easily #17952 (@krassowski)
• Export the ContentProviderRegistry #17940 (@martinRenou)
• Make filebrowser breadcrumbs configurable #17932 (@Darshan808)
• Debugger: Visual indicator when debugger is paused #17891 (@arjxn-py)
• Debugger: Show cell execution count in breakpoint/call stack/source panel #17881 (@arjxn-py)

Bugs fixed

• Fix race condition renaming unnamed files on first save #17982 (@shreve)
• Fix spurious scrollbar in output area due to prompt overlay #17981 (@shreve)
• Fix file drag-and-drop to breadcrumbs #17975 (@Darshan808)
• Delay content-visibility application to handle early CodeMirror initialization (Firefox) #17973 (@Meriem-BenIsmail)
• Prevent widget closure when Save As is cancelled #17956 (@Darshan808)
• Fix empty whitespace after large cell rendering #17949 (@Meriem-BenIsmail)
• Fix highlighting search on output cells and previous match skips #17797 (@itsmevichu)

Maintenance and upkeep improvements

• Bandaid: pin ipykernel on CI to pre-7.0 #17992 (@krassowski)
• Add UI testing on Firefox (ignore snapshot differences) #17965 (@krassowski)
• Update to Playwright 1.56.0 #17960 (@jtpio)
• Temporarily pin ipykernel to avoid CI breakage with 7.0 pre-release #17957 (@arjxn-py)
• Fix case of 'Debugger console' to 'Debugger Console' #17939 (@jtpio)
• Improve robustness of inline-completer UI tests #17931 (@ianthomas23)

Documentation improvements

• Update JupyterCon 2025 announcement links #17983 (@krassowski)
• Make DocumentManager dialogs customizable #17961 (@Darshan808)
• Fix parameter documentation issues in API reference #17954 (@krassowski)
• Add cross-references to API reference, fix missing packages in API #17953 (@krassowski)
• Systematise how base URL is obtained to allow swapping it more easily #17952 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@andrii-i | @arjxn-py | @Darshan808 | @github-actions | @hxrshxz | @ianthomas23 | @itsmevichu | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @Meriem-BenIsmail | @shreve

4.5.0b0

(Full Changelog)

Enhancements made

• Switch the default windowing mode to contentVisibility #17926 (@Meriem-BenIsmail)
• Pass context down in attachments resolver #17924 (@krassowski)
• Allow swapping the empty markdown cell placeholder (and translate it) #17920 (@krassowski)
• Enable the minimap for all windowing modes #17904 (@Meriem-BenIsmail)
• Debugger: Differentiate selected breakpoints with specific style #17893 (@HaudinFlorence)
• Use console for debugger evaluation #17892 (@gjmooney)

Bugs fixed

• Fix scrolling to targets within notebook #17928 (@krassowski)
• Debugger: fix adding a breakpoint on an empty line of code and reclicking after addition #17923 (@HaudinFlorence)
• Debugger: Only send the configurationDone message once as per the DAP #17912 (@martinRenou)
• Correctly dispose TerminalManager even if terminals are not available #17876 (@krassowski)

Maintenance and upkeep improvements

• Make debugger console tests more robust and faster #17937 (@krassowski)
• Fix integrity checks on CI #17927 (@krassowski)
• Ignore npmjs.com in check-links #17915 (@jtpio)
• Update to Playwright 1.55.1 #17914 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@github-actions | @gjmooney | @HaudinFlorence | @jtpio | @jupyterlab-probot | @krassowski | @martinRenou | @Meriem-BenIsmail

4.5.0a4

(Full Changelog)

Enhancements made

• Add IUserAPIClient to make swapping UserManager easier #17884 (@krassowski)
• Provide context about the tag and attribute to the URL resolver #17882 (@krassowski)
• Add file browser menu for creating new Python/R/Julia files #17848 (@martinRenou)
• Allow configuring toSkip for the SettingsEditor #17834 (@jtpio)
• Use content-visibility to render notebook cells more efficiently #17822 (@Meriem-BenIsmail)
• Use toolbar registry for log console #17814 (@gjmooney)
• Add a new addExtraLineOnCellMerge setting #17806 (@jtpio)
• Update to mermaid 11.10, marked 16.2 #17800 (@bollwyvl)
• Allow opening notebooks without starting a kernel #17798 (@jtpio)

Bugs fixed

• Improve description of windowing mode in settings #17897 (@davidbrochart)
• Fix notebook toolbar item order #17866 (@Darshan808)
• Fix output prompt overlay height for large outputs #17863 (@Meriem-BenIsmail)
• Debugger: scroll to the highlighted line in source panel #17860 (@brichet)
• Prevent overlay of content from other columns when renaming a file in the file browser #17857 (@CrafterKolyan)
• Select file and accept dialog on file double click in FileDialog.getOpenFiles #17844 (@martinRenou)
• Fix broken toolbar updates due to missing 'clear' cases in switch statements for ObservableList #17837 (@Darshan808)
• Debugger: Preserve variables panel contents when switching editor focus #17830 (@arjxn-py)
• Send code to console #17824 (@gjmooney)
• Change default line wrap in default editor config #17818 (@gjmooney)
• Clear incomplete execution metadata when splitting running cells #17804 (@Darshan808)
• Activate Code Folding submenu only where it is supported #17803 (@Darshan808)
• Don't create empty page_config in sys_prefix when disabled is empty #17791 (@gjmooney)

Maintenance and upkeep improvements

• Fix failing mermaid snapshots test #17845 (@krassowski)
• Re-add workflow to reject changes to staging #17776 (@jtpio)

Documentation improvements

• Add JupyterCon banner and Jupyter colors #17906 (@choldgraf)
• Allow configuring toSkip for the SettingsEditor #17834 (@jtpio)
• Improve language/grammar in extensions documentation #17833 (@jrdnbradford)
• Reorganise and improve discoverability in documentation #17821 (@cmarmo)
• Remove Isabela Presedo-Floyd from current maintainers #17810 (@isabela-pf)
• Replace deprecated toolbarRegistry.registerFactory with toolbarRegistry.addFactory in docs #17799 (@krassowski)
• Update zoom link for weekly meetings in CORPORATE.md #17789 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@arjxn-py | @bollwyvl | @brichet | @choldgraf | @cmarmo | @CrafterKolyan | @Darshan808 | @davidbrochart | @github-actions | @gjmooney | @HaudinFlorence | @isabela-pf | @jrdnbradford | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @Meriem-BenIsmail | @williamstein

4.5.0a3

(Full Changelog)

New features added

• Add terminal search functionality #17691 (@ianthomas23)

Enhancements made

• Allow to swap the URL resolver #17784 (@krassowski)
• Add the "Show Workspace Indicator" command to the palette #17780 (@jtpio)

Bugs fixed

• Mark cell as dirty at execution start instead of after execution #17774 (@Darshan808)
• Preserve original cell during split to maintain kernel connections #17755 (@Darshan808)
• Fix file browser navigation with preferredDir #17723 (@Darshan808)
• Fix opening active notebook from kernel - custom drive #15958 (@itsmevichu)

Maintenance and upkeep improvements

• Avoid ipykernel 7.0.0a2 in CI #17778 (@ianthomas23)
• Stabilize Code Folding Tests #17773 (@Darshan808)
• Check app.shell.currentWidget for updating the tab title, if available #17772 (@jtpio)
• Fix labeller config for audio/video extensions #17768 (@krassowski)

Documentation improvements

• Mark cell as dirty at execution start instead of after execution #17774 (@Darshan808)
• Stabilize Code Folding Tests #17773 (@Darshan808)
• Check app.shell.currentWidget for updating the tab title, if available #17772 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@Darshan808 | @fcollonval | @github-actions | @ianthomas23 | @itsmevichu | @jtpio | @jupyterlab-probot | @krassowski | @Zsailer

4.5.0a2

(Full Changelog)

Enhancements made

• Auto-switch between light and dark mode when "Synchronize with System Settings" is enabled #17733 (@MUFFANUJ)
• Keep cell id when the user changes cell type #17731 (@afshin)
• Discover the app directory relative to the installed module #17721 (@zanieb)
• Show checkbox and buttons of Dialog component on separate lines #17696 (@MUFFANUJ)
• Add types for interrupt messages, and move them from shell to control channel #17684 (@krassowski)
• Add fold/unfold commands to menu and command palette #17677 (@Darshan808)
• Add a new allowFileUploads setting to the file browser #17676 (@jtpio)
• Dockerfile: Install less, vim, and nano #17670 (@rschroll)
• Describe args for all commands #17649 (@jtpio)
• Add audio-extension and video-extension #17636 (@jtpio)
• Add select all command for file browser listing #17571 (@RRosio)

Bugs fixed

• Exclude version 6.30.0 of ipykernel, which add a regression on the debugger #17744 (@brichet)
• Fix initial column sizes in FileDialog.getOpenFiles dialog #17737 (@martinRenou)
• Fix anchor navigation on sanitized HTML #17727 (@brichet)
• Fix error when deleting a markdown cell with heading #17720 (@itsmevichu)
• Reduce UI blocking time when saving large notebooks by using file stream #17707 (@krassowski)
• Fix scrollbar behaviour when scrolling past long cell in full windowing mode #17705 (@krassowski)
• Normalize ToolbarButtonComponent dataset attributes with the data- prefix #17703 (@RRosio)
• Do not change silently when executing an empty cell #17701 (@brichet)
• Fix tab order for status bar items #17700 (@MUFFANUJ)
• Update @codemirror/view to v6.38.1, fixing lineWrap in defer mode #17698 (@krassowski)
• Fix auto completion on irrelevant cell types #17693 (@itsmevichu)
• Check minimum docker version when starting docker build #17675 (@rschroll)
• Fix uncoalesced cell stream outputs clearing #17672 (@Darshan808)
• Fix threadId being passed to the debugger #17667 (@kr-2003)
• Fix colors for CodeMirror panels #17666 (@krassowski)
• Create a subshell per target and kernel when using CommsOverSubshells.PerCommTarget #17634 (@ianthomas23)
• Prevent memory leak when rendering text stream #17628 (@krassowski)
• Fix cell toolbar enabled status with multiple notebooks #17625 (@MUFFANUJ)
• Add layout containment on viewport in windowed mode #17620 (@krassowski)
• Fix selection visibility in terminal while using Dark High Contrast theme #17618 (@MUFFANUJ)
• Fix setting allowed schemes on runtime using Sanitizer.setAllowedSchemes #17602 (@bsundaram1)
• Emit selectionChanged on model refresh #17596 (@jtpio)
• Fixes for accessibility issues reported on missing ARIA roles #17591 (@nkn2022)
• Improve the Table of Contents logic to handle more heading definitions #17583 (@itsmevichu)

Maintenance and upkeep improvements

• Update to Playwright 1.54.2 #17760 (@jtpio)
• Add logs to the server startup in the js-testing tests #17754 (@jtpio)
• Pin to httpx<1 #17746 (@jtpio)
• Bump form-data from 4.0.2 to 4.0.4 #17717 (@dependabot)
• Bump brace-expansion from 1.1.11 to 1.1.12 #17699 (@dependabot)
• Add more retries on the frequently failing test #17689 (@krassowski)
• Bump actions/cache from 3 to 4 in the actions group #17674 (@dependabot)
• Update library name, minor edit #17671 (@afshin)
• Fix terminal visual regression snapshots test failures #17656 (@krassowski)
• Update UI Tests Documentation snapshots #17654 (@jtpio)
• Update mermaid 11.7.0 #17641 (@bollwyvl)
• Drop manual Firefox install, add playwright cache #17631 (@krassowski)
• Update to Playwright 1.53 #17622 (@jtpio)
• Remove the need for ILabShell for the inspector plugins #17608 (@jtpio)

Documentation improvements

• Fix anchor navigation on sanitized HTML #17727 (@brichet)
• Improve documentation for jupyter.lab.transform #17726 (@MUFFANUJ)
• Describe args for all commands #17649 (@jtpio)
• Fix link to zulip and icon in docs #17639 (@krassowski)
• Add audio-extension and video-extension #17636 (@jtpio)
• Documentation for Kernel Subshells #17623 (@MUFFANUJ)
• Added --yes to conda environment creation command #17605 (@kathatherine)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @bollwyvl | @brichet | @bsundaram1 | @Darshan808 | @dependabot | @github-actions | @ianthomas23 | @itsmevichu | @jtpio | @jupyterlab-probot | @kathatherine | @kr-2003 | @krassowski | @lumberbot-app | @martinRenou | @MUFFANUJ | @nkn2022 | @pre-commit-ci | @RRosio | @rschroll | @zanieb

4.5.0a1

(Full Changelog)

Enhancements made

• Add a selectionChanged signal to the file browser #17563 (@jtpio)
• Auto-open uploaded files with size and settings control #17556 (@Darshan808)
• Add a setting to configure the default log level for the Log Console #17547 (@jtpio)
• Add a signal when cells are pasted in the Notebook #17506 (@brichet)
• Add new CSS rule for expanding linked output to 100% height #17487 (@SylvainCorlay)
• Use the system clipboard for copying and pasting cells #17445 (@yacchin1205)

Bugs fixed

• Fix error handing in extension manager (typo and undefined variable) #17592 (@Darshan808)
• Fix stringmd5 in docker image if both md5sum and md5 are present #17590 (@ritzdevp)
• Ensure strings with yellow background in tracebacks are visible #17577 (@EtiennePelletier)
• Add standby callback to lumino polls #17567 (@mahendrapaipuri)
• Fix stdin input triggering cell re-execution on Shift+Enter #17565 (@Darshan808)
• fileeditor-extension: fix handling of launcher, commands and menu entries on specsChanged #17550 (@jtpio)
• Fix incorrect ARIA labels in the MainAreaWidget #17527 (@dnlzrgz)
• Enable save in collaborative mode #17508 (@Darshan808)
• Allow grid and flexbox style attributes during Markdown/HTML sanitization #17408 (@dotnetautor)

Maintenance and upkeep improvements

• Use hatch to get the version #17559 (@krassowski)
• Temporarily ignore links to github.com #17544 (@krassowski)

Documentation improvements

• Add a selectionChanged signal to the file browser #17563 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@brichet | @Darshan808 | @dnlzrgz | @dotnetautor | @EtiennePelletier | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @mahendrapaipuri | @ritzdevp | @SylvainCorlay | @yacchin1205

4.5.0a0

(Full Changelog)

Enhancements made

• Add an optional exportAs method to NbConvert.IManager #17482 (@jtpio)
• Reorder extra_labextensions_path to favor defaults #17476 (@peytondmurray)

Bugs fixed

• Fix Settings Editor incorrectly resetting values to default in filtered view #17540 (@yukiiii04)
• Update widget flag on attaching cell to viewport #17532 (@trungleduc)
• Fix rendering of long cell editors in windowed notebook #17528 (@krassowski)
• Upgrade CodeMirror packages to latest #17526 (@krassowski)
• Update lumino to v2025.4.30 to pull menu aria fix #17525 (@krassowski)
• Fix editing shortcuts on Safari (allow shortcut edit button to receive focus) #17511 (@minrk)
• Add aria-hidden to icons (<svg> elements) which do not have a title #17472 (@nkn2022)

Maintenance and upkeep improvements

• Bump actions/create-github-app-token from 1 to 2 in the actions group #17529 (@dependabot)
• Bump tough-cookie from 4.1.2 to 4.1.4 #17502 (@dependabot)
• Bump ws from 8.16.0 to 8.18.1 in /jupyterlab/tests/mock_packages/test-hyphens-underscore #17500 (@dependabot)
• Bump ws from 8.16.0 to 8.18.1 in /jupyterlab/tests/mock_packages/test_no_hyphens #17499 (@dependabot)
• Update to Playwright 1.52.0 #17483 (@jtpio)

Documentation improvements

• Add new entry to Postmortems in RELEASE.md #17505 (@jtpio)
• Add an optional exportAs method to NbConvert.IManager #17482 (@jtpio)
• Reorder extra_labextensions_path to favor defaults #17476 (@peytondmurray)

Contributors to this release

(GitHub contributors page for this release)

@dependabot | @jtpio | @jupyterlab-probot | @krassowski | @minrk | @nkn2022 | @peytondmurray | @pre-commit-ci | @trungleduc | @yukiiii04

4.4.10

(Full Changelog)

Bugs fixed

• Fix ObservableList.removeValue behaviour: if item isn't found, don't just remove the last item! #18019 (@robertstrauss)
• Fix highlighting search on output cells and previous match skips #17797 (@itsmevichu)
• Fix spurious scrollbar in output area due to prompt overlay #17981 (@shreve)
• Fix race condition renaming unnamed files on first save #17982 (@shreve)
• Fix empty whitespace after large cell rendering #17949 (@Meriem-BenIsmail)

Maintenance and upkeep improvements

• Bandaid: pin ipykernel on CI to pre-7.0 #17992 (@krassowski)
• Fix examples on 4.4.x #17963 (@krassowski)
• Temporarily pin ipykernel to avoid CI breakage with 7.0 pre-release #17957 (@arjxn-py)

Documentation improvements

• Update JupyterCon 2025 announcement links #17983 (@krassowski)
• Add cross-references to API reference, fix missing packages in API #17953 (@krassowski)
• Fix parameter documentation issues in API reference #17954 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@andrii-i | @arjxn-py | @Darshan808 | @github-actions | @hxrshxz | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @meeseeksmachine

4.4.9

(Full Changelog)

Bugs fixed

• Correctly dispose TerminalManager even if terminals are not available #17876 (@krassowski)
• Fix scrolling to targets within notebook #17928 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@jupyterlab-probot | @krassowski | @martinRenou | @meeseeksmachine

4.4.8

(Full Changelog)

Bugs fixed

• Debugger: Only send the configurationDone message once as per the DAP #17912 (@martinRenou)
• Fix output prompt overlay height for large outputs #17863 (@Meriem-BenIsmail)
• Prevent overlay of content from other columns when renaming a file in the file browser #17857 (@CrafterKolyan)
• Fix notebook toolbar item order #17866 (@Darshan808)

Maintenance and upkeep improvements

• Ignore npmjs.com in check-links #17915 (@jtpio)

Documentation improvements

• Add JupyterCon banner and Jupyter colors #17906 (@choldgraf)

Contributors to this release

(GitHub contributors page for this release)

@brichet | @github-actions | @HaudinFlorence | @jtpio | @jupyterlab-probot | @krassowski | @martinRenou | @meeseeksmachine | @Meriem-BenIsmail | @williamstein

4.4.7

(Full Changelog)

Enhancements made

• Update to mermaid 11.10, marked 16.2 #17813 (@bollwyvl)

Bugs fixed

• Change default line wrap in default editor config #17818 (@gjmooney)
• Select file and accept dialog on file double click in FileDialog.getOpenFiles #17844 (@martinRenou)
• Fix broken toolbar updates due to missing 'clear' cases in switch statements for ObservableList #17837 (@Darshan808)
• Send code to console #17824 (@gjmooney)
• Clear incomplete execution metadata when splitting running cells #17804 (@Darshan808)
• Don't create empty page_config in sys_prefix when disabled is empty #17791 (@gjmooney)

Documentation improvements

• Improve language/grammar in extensions documentation #17833 (@jrdnbradford)
• Reorganise and improve discoverability in documentation #17821 (@cmarmo)
• Replace deprecated toolbarRegistry.registerFactory with toolbarRegistry.addFactory in docs #17799 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@bollwyvl | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @meeseeksmachine | @Meriem-BenIsmail

4.4.6

(Full Changelog)

Bugs fixed

• Preserve original cell during split to maintain kernel connections #17755 (@Darshan808)
• Fix file browser navigation with preferredDir #17723 (@Darshan808)
• Fix anchor navigation on sanitized HTML #17727 (@brichet)
• Fix tab order for status bar items #17700 (@MUFFANUJ)
• Fix uncoalesced cell stream outputs clearing #17672 (@Darshan808)
• Fix error when deleting a markdown cell with heading #17720 (@itsmevichu)
• Fix initial column sizes in FileDialog.getOpenFiles dialog #17737 (@martinRenou)
• Exclude version 6.30.0 of ipykernel, which add a regression on the debugger #17744 (@brichet)

Maintenance and upkeep improvements

• Avoid ipykernel 7.0.0a2 in CI #17778 (@ianthomas23)
• Add logs to the server startup in the js-testing tests #17754 (@jtpio)
• Bump form-data from 4.0.2 to 4.0.4 #17717 (@dependabot[bot])
• Pin to httpx<1 #17746 (@jtpio)
• Add more retries on the frequently failing test #17689 (@krassowski)

Documentation improvements

• Fix file browser navigation with preferredDir #17723 (@Darshan808)
• Fix anchor navigation on sanitized HTML #17727 (@brichet)
• Improve documentation for jupyter.lab.transform #17726 (@MUFFANUJ)

Contributors to this release

(GitHub contributors page for this release)

@brichet | @Darshan808 | @fcollonval | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine | @Zsailer

4.4.5

(Full Changelog)

Bugs fixed

• Fix scrollbar behaviour when scrolling past long cell in full windowing mode #17705 (@krassowski)
• Update @codemirror/view to v6.38.1, fixing lineWrap in defer mode #17698 (@krassowski)
• Fix auto completion on irrelevant cell types #17693 (@itsmevichu)
• Do not change silently when executing an empty cell #17701 (@brichet)
• Reduce UI blocking time when saving large notebooks by using file stream #17707 (@krassowski)
• Normalize ToolbarButtonComponent dataset attributes with the data- prefix #17703 (@RRosio)
• Fixes for accessibility issues reported on missing ARIA roles #17591 (@nkn2022)
• Fix threadId being passed to the debugger #17667 (@kr-2003)

Maintenance and upkeep improvements

• Bump brace-expansion from 1.1.11 to 1.1.12 #17699 (@dependabot[bot])

Documentation improvements

• Documentation for Kernel Subshells #17623 (@MUFFANUJ)

Contributors to this release

(GitHub contributors page for this release)

@Darshan808 | @github-actions | @itsmevichu | @jtpio | @jupyterlab-probot | @kr-2003 | @krassowski | @martinRenou | @meeseeksmachine | @nkn2022

4.4.4

(Full Changelog)

Bugs fixed

• Fix colors for CodeMirror panels #17666 (@krassowski)
• Fix cell toolbar enabled status with multiple notebooks #17625 (@MUFFANUJ)
• Create a subshell per target and kernel when using CommsOverSubshells.PerCommTarget #17634 (@ianthomas23)
• Prevent memory leak when rendering text stream #17628 (@krassowski)
• Fix setting allowed schemes on runtime using Sanitizer.setAllowedSchemes #17602 (@bsundaram1)
• Add layout containment on viewport in windowed mode #17620 (@krassowski)
• Fix selection visibility in terminal while using Dark High Contrast theme #17618 (@MUFFANUJ)

Maintenance and upkeep improvements

• [4.4.x] Update documentation snapshots #17658 (@jtpio)
• Fix terminal visual regression snapshots test failures #17656 (@krassowski)

Documentation improvements

• Fix link to zulip and icon in docs #17639 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@github-actions | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @meeseeksmachine

4.4.3

(Full Changelog)

Bugs fixed

• Enable save in collaborative mode #17508 (@Darshan808)
• Fix error handing in extension manager (typo and undefined variable) #17592 (@Darshan808)
• Ensure strings with yellow background in tracebacks are visible #17577 (@EtiennePelletier)
• Fix stdin input triggering cell re-execution on Shift+Enter #17565 (@Darshan808)
• Add standby callback to lumino polls #17567 (@mahendrapaipuri)
• Fix incorrect ARIA labels in the MainAreaWidget #17527 (@dnlzrgz)
• fileeditor-extension: fix handling of launcher, commands and menu entries on specsChanged #17550 (@jtpio)

Maintenance and upkeep improvements

• Use hatch to get the version #17559 (@krassowski)
• Temporarily ignore links to github.com #17544 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@github-actions | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine

4.4.2

(Full Changelog)

Bugs fixed

• Fix Settings Editor incorrectly resetting values to default in filtered view #17540 (@yukiiii04)
• Upgrade CodeMirror packages to latest #17526 (@krassowski)
• Update widget flag on attaching cell to viewport #17532 (@trungleduc)
• Update lumino to v2025.4.30 to pull menu aria fix #17525 (@krassowski)
• Fix rendering of long cell editors in windowed notebook #17528 (@krassowski)
• Add aria-hidden to icons (<svg> elements) which do not have a title #17472 (@nkn2022)
• Fix editing shortcuts on Safari (allow shortcut edit button to receive focus) #17511 (@minrk)

Maintenance and upkeep improvements

• Reconfigure 4.4.x branch #17537 (@krassowski)
• Bump tough-cookie from 4.1.2 to 4.1.4 #17502 (@dependabot[bot])

Documentation improvements

• Reconfigure 4.4.x branch #17537 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine | @nkn2022

4.4.1

(Full Changelog)

Bugs fixed

• Fix undo/redo in cells created in none windowing mode #17486 (@krassowski)
• Fix token extraction for incomplete paths #17477 (@DenisaCG)
• Fix handling of the single click navigation #17475 (@jtpio)
• Follow changes to stream outputs #17469 (@davidbrochart)
• Fix incorrect modifications in collaborative save events #17466 (@Darshan808)
• Fix document search matching text within unsupported SVG tags #17429 (@achhina)
• Fix handling of the CSV viewer theme #17405 (@jtpio)
• Fix browser tab name updates when started in single-document mode #17210 (@Darshan808)

Maintenance and upkeep improvements

• Bump webpack from 5.91.0 to 5.99.6 in /jupyterlab/tests/mock_packages/test-hyphens-underscore #17495 (@dependabot)
• Bump webpack from 5.91.0 to 5.99.6 in /jupyterlab/tests/mock_packages/test_no_hyphens #17494 (@dependabot)
• Bump @babel/runtime from 7.21.0 to 7.27.0 #17491 (@dependabot)
• Fix @jupyterlab/services import #17457 (@jtpio)
• Remove dependencies for Python < 3.9 #17453 (@bnavigator)
• Bump nanoid from 3.3.7 to 3.3.11 in /jupyterlab/tests/mock_packages/test-hyphens-underscore #17448 (@dependabot)

Contributors to this release

(GitHub contributors page for this release)

@achhina | @afshin | @bnavigator | @brichet | @Darshan808 | @davidbrochart | @DenisaCG | @dependabot | @jtpio | @jupyterlab-probot | @krassowski | @pre-commit-ci

4.4.0

See: https://jupyterlab.readthedocs.io/en/latest/getting_started/changelog.html#v4-4

(Full Changelog)

New features added

• Add Settings Import Feature from a JSON File #16994 (@Darshan808)
• Support kernel subshells #16963 (@ianthomas23)

Enhancements made

• Create "Kernels" section, split statusbar settings #17415 (@krassowski)
• Add IKernelSpecAPICLient and ITerminalAPIClient, fix definitions of interfaces #17395 (@jtpio)
• If subshells are supported by the kernel, send comm messages to subshells #17363 (@martinRenou)
• Add a setting to disable the context menu #17352 (@afshin)
• Add IKernelAPIClient and ISessionAPIClient as options for Kernel.IManager and Session.IManager #17348 (@jtpio)
• Fix checkbox alignment in dialog using display: flex #17343 (@SatyajitRedekar)
• Speed up output rendering: add a limit on max length of protocol to linkify #17264 (@krassowski)
• Remove spurious regex to slightly improve performance of streaming large outputs #17262 (@krassowski)
• Add (opt-in) workspace selector, show workspace name in the title #17256 (@Darshan808)
• Add commands to change the console prompt position to the palette #17253 (@jtpio)
• Improve UX for "Rename on First Save" Dialog #17217 (@MUFFANUJ)
• Replace R logo with official logo #17216 (@ajbozarth)
• Bump @codemirror/lang-python to provide match-case indentation #17189 (@deephbz)
• Remove --subshell-console flag #17180 (@ianthomas23)
• Add Content Provider API #17092 (@krassowski)
• Copy edits in CONTRIBUTING.md #17078 (@JasonWeill)
• Add option to render markdown cells upon exit #17076 (@peytondmurray)
• Add option for automatic Fill-in-the-Middle inline completion #17067 (@Darshan808)
• Update the form schema if it changed #16907 (@brichet)
• Export user preference settings to a json file #16896 (@Darshan808)
• Add more descriptive labels for fetching Jupyter news options #16848 (@Adam-D-Lewis)
• Hide the terminals part of the running sessions status bar item by default #16846 (@jtpio)
• Allow customizing the ServiceManager with plugins #16794 (@jtpio)
• Move @jupyterlab/debugger icons to @jupyterlab/ui-components #16745 (@joaopalmeiro)
• Add option to disable input placeholder text #16713 (@maitreya2954)
• Allow changing the position of the code console prompt cell, add settings and toolbar items #13837 (@jtpio)

Bugs fixed

• Fix CommandPalette gets re-rendered even if hidden #17442 (@fcollonval)
• Add distinct accessible aria label for each toolbar #17441 (@nkn2022)
• Fix read-only indicator not showing in RTC docprovider #17440 (@Darshan808)
• Fix visual indication for drag and drop in editor #17438 (@MUFFANUJ)
• Fix usage of ITerminalAPIClient in TerminalConnection #17437 (@jtpio)
• Fix for filebrowser tooltip rendering the kernel info repeatedly #17421 (@itsmevichu)
• More specific selector for "Copy Output to Clipboard" #17413 (@jtpio)
• Fix rendering URLs as linked in errors #17371 (@afshin)
• Fix cell output stream if previous chunk did not end in new line #17369 (@davidbrochart)
• Use "Move to Trash" over "Delete" when contents manager's delete_to_trash is True #17359 (@jesuino)
• Add widget ID arg to semantic command invocations #17350 (@afshin)
• Improve scrolling edge cases #17339 (@krassowski)
• Fix HTML lang attribute #17337 (@fcollonval)
• Fix typo in LSP console message on kernel change #17323 (@iisakkirotko)
• Fix handling of a null banner in the code console #17322 (@jtpio)
• Updated enabling logic for run-all-below button on Notebook Panel #17298 (@rsaditya01)
• Disable new ctrl + m toggle focus binding, enable configuring it via Keyboard Shortcuts #17291 (@krassowski)
• Fix order of extensions in PyPI Extension Manager #17266 (@Princekumarofficial)
• Allow <GroupItem> to filter out null children and accept any ReactNode #17244 (@MUFFANUJ)
• Cache item state to improve filebrowser's performance #17239 (@Rishab87)
• Fix windowing crash due to out-of-bounds access #17238 (@krassowski)
• Fix vertical scrollbar issue caused by \tag{} directive in LaTeX #17223 (@MUFFANUJ)
• Fix display of tooltip/title for terminal and kernel sessions statusbar item #17220 (@MUFFANUJ)
• Fix disabling Fuzzy Filtering in the File Browser #17214 (@Darshan808)
• Fix for inconsistent tab closure in "Close All Tabs" operation #17203 (@itsmevichu)
• Fix "running" prompt state with server-side execution #17195 (@krassowski)
• Fix for issue preventing cell metadata removal #17194 (@itsmevichu)
• Add missing aria labels in application shell #17192 (@Rishab87)
• Fix misaligned SVG icon in "Add Tag" button #17187 (@MUFFANUJ)
• Increase color contrast of operators in code editor #17173 (@hxrshxz)
• Fix read-only cells becoming editable on settings change #17167 (@Darshan808)
• Ensure search highlight is applied to Python builtin keywords #17160 (@hxrshxz)
• Fix scrolling and selection restoration on undo/redo #17158 (@krassowski)
• Fix emission of lastCell from notebook run actions #17156 (@pawel99k)
• Improve contrast for 'Add' button in Keyboard Shortcuts UI in both dark and light theme #17153 (@hxrshxz)
• Fixed Missing Comma in devcontainer.json to enable functional configuration #17150 (@hxrshxz)
• Fixing dialog closing unexpectedly when typing in the textarea #17142 (@Rishab87)
• Fix setter for contentProviderId #17141 (@jtpio)
• Fix title for overscan count option #17130 (@krassowski)
• Ensure context menu closes when clicking outside it in the minimap #17128 (@peytondmurray)
• Respect query argument in settingeditor:open when settings editor is already open #17121 (@andrewfulton9)
• Fix sanitizer call in ToC if html data is array of strings #17114 (@martenrichter)
• Use bare string proxies parameter for httpx<0.28 #17113 (@AmberArr)
• Add missing bind(this) to NotebookAdapter's isReady function #17109 (@martenrichter)
• Fix background of the popup toolbar #17098 (@krassowski)
• Focus terminal after copy and paste operations #17097 (@krassowski)
• Sync Settings Editor with Updated Settings #17091 (@Darshan808)
• Fix consecutive invocations of inline completion #17082 (@fcollonval)
• Fix contrast for unselected search matches in Dark High Contrast theme #17065 (@krassowski)
• Bump @codemirror packages #17064 (@jtpio)
• Use AsyncHTTPTransport over HTTPTransport for httpx #17058 (@krassowski)
• Reset resizeData after column adjustment to allow file dragging #17047 (@Darshan808)
• Fix newline handling in stream outputs #17043 (@davidbrochart)
• Fix filebrowser name order #17038 (@Nriver)
• Improve performance of rendering stdout/stderr #17022 (@krassowski)
• Fixing missed first keystroke on Ctrl+F #17005 (@itsmevichu)
• Fix disappearing cells (heal offsets after updating estimated sizes) #17000 (@krassowski)
• Fix handling of carriage return in output streams #16999 (@davidbrochart)
• Fix emission of FileBrowserModel.onFileChanged for drives (including RTC:) #16988 (@davidbrochart)
• Restore viewport min-height when not windowing #16979 (@brichet)
• Fix regression in standard error rendering performance #16975 (@krassowski)
• Drag image prompt styling #16972 (@JasonWeill)
• Remove unused CSS #16968 (@mgeier)
• Fix moving files when Last Modified column is hidden #16962 (@krassowski)
• Fix prefix removal when reconciling completions from multiple sources #16953 (@krassowski)
• Fix total size estimation in full windowing mode to reduce scrollbar jitter #16950 (@krassowski)
• Enable Scroll for Overflowing Menus on Small Screens #16945 (@Darshan808)
• Disable paste for read-only markdown cells & fix replace all for markdown cells #16943 (@itsmevichu)
• Fix Regex Functionality for Find and Replace / Replace All #16940 (@itsmevichu)
• Improve drag image styling #16936 (@JasonWeill)
• Add clarification about FileFormat in Services.Contents #16927 (@cmarmo)
• Reuse serverSettings when reopen an existing terminal #16921 (@ianthomas23)
• Maintain autosave timers while disconnected #16903 (@holzman)
• Abort saving if a file cannot be saved #16900 (@JasonWeill)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)
• Fix for unable to lock any extension #16213 (@itsmevichu)

Maintenance and upkeep improvements

• Do not try to prettier .mypy_cache #17444 (@krassowski)
• Bump vega from 5.31.0 to 5.32.0 #17436 (@dependabot)
• Make ILabShell optional in the logconsole extension #17430 (@jtpio)
• Fix types in translation package, remove usages of any #17414 (@krassowski)
• Remove workflow using tj-actions/changed-files #17398 (@jtpio)
• Fix definition of the ILicensesClient interface #17397 (@jtpio)
• Update to mermaid 11.6.0, marked 15.0.7 #17396 (@bollwyvl)
• Bump nanoid from 3.3.7 to 3.3.9 in /jupyterlab/tests/mock_packages/test_no_hyphens #17387 (@dependabot)
• Bump @babel/helpers from 7.21.0 to 7.26.10 #17385 (@dependabot)
• Bump axios from 1.7.4 to 1.8.2 #17380 (@dependabot)
• Update the copyright year to 2025 #17379 (@jtpio)
• Update to Playwright 1.51.0 #17372 (@jtpio)
• Require JupyterLab.IInfo for the plugin manager plugin #17367 (@jtpio)
• Move the licenses plugin to apputils-extension #17361 (@jtpio)
• Bump the actions group with 2 updates #17353 (@dependabot)
• Expose ConfigSectionManager via a plugin #17345 (@jtpio)
• Enforce plugin name convention and rename noncompliant plugins #17338 (@jtpio)
• Use ITranslationConnector to fetch the translations #17329 (@jtpio)
• Normalize translator plugin ids #17328 (@jtpio)
• Provide ISettingsConnector via a separate plugin #17327 (@jtpio)
• Provide ITranslatorConnector via a separate plugin #17325 (@jtpio)
• Bump semver and tough-cookie to non-vulnerable versions #17319 (@dlqqq)
• Bump dompurify from 3.2.3 to 3.2.4 #17305 (@dependabot)
• Bump vega from 5.24.0 to 5.26.0 #17295 (@dependabot)
• Clean up references to jupyter-packaging #17294 (@jtpio)
• Fix missing checks for author comment association for docs #17289 (@krassowski)
• Fix CI failures caused by changes in jupyterlab-demo #17283 (@krassowski)
• Update to Lumino 2025.2.1, fix the console prompt menu alignment #17274 (@jtpio)
• Update to TypeScript 5.5 #17271 (@jtpio)
• Use the same isPalette arg as for other commands #17258 (@jtpio)
• Update to TypeScript 5.4 #17255 (@jtpio)
• Update to Playwright 1.50 #17254 (@jtpio)
• Bump tj-actions/changed-files from 45.0.5 to 45.0.6 in the actions group #17249 (@dependabot)
• Bump the pip group with 2 updates #17248 (@dependabot)
• Improving reliability of the the galata tests #17221 (@Darshan808)
• Updated mock packages to use hatch-jupyter-builder #17219 (@Rishab87)
• Update to TypeScript 5.2 #17207 (@jtpio)
• Bump katex from 0.16.11 to 0.16.21 #17185 (@dependabot)
• Remove skipLibCheck from the test tsconfig #17143 (@jtpio)
• Bump tj-actions/changed-files from 45.0.4 to 45.0.5 in the actions group #17134 (@dependabot)
• Bump the pip group with 3 updates #17133 (@dependabot)
• Fix exposing ISignal instead of Signal #17122 (@jtpio)
• Add pixi files to various ignore files #17120 (@jtpio)
• Bump systeminformation from 5.21.8 to 5.23.8 #17116 (@dependabot)
• Workaround the Chromium bug with navigator.language #17094 (@krassowski)
• Update to Playwright 1.49 #17085 (@jtpio)
• Bump the pip group across 1 directory with 4 updates #17081 (@dependabot)
• Update to typedoc 0.27.4 #17070 (@bollwyvl)
• Bump nanoid from 3.3.6 to to 3.3.8 #17057 (@krassowski)
• Restore bottom httpx version window #17041 (@bollwyvl)
• Bump cross-spawn from 7.0.3 to 7.0.6 in /jupyterlab/tests/mock_packages/test-hyphens-underscore #17040 (@dependabot)
• Drop Python 3.8 #17036 (@jtpio)
• Fixes debugger UI-test with python>=3.12 #17024 (@brichet)
• Bump tj-actions/changed-files from 45.0.3 to 45.0.4 in the actions group #17019 (@dependabot)
• Fix extension manager failure with new httpx versions, bump httpx to v0.28.0 #17013 (@davidbrochart)
• Pin Python version for visual regression testing to 3.11 #16989 (@krassowski)
• Fix a test in terminal.spec.ts #16942 (@holzman)
• Fix docmanager/savehandler "continue to save" test #16933 (@holzman)
• Update sphinx requirement from <8.1.0,>=1.8 to >=1.8,<8.2.0 in the pip group across 1 directory #16922 (@dependabot)
• Bump tj-actions/changed-files from 45.0.2 to 45.0.3 in the actions group #16911 (@dependabot)
• Bump mermaid from 10.7.0 to 10.9.3 #16885 (@dependabot)
• Run CI on Python 3.9 and 3.13 (drop 3.8 from testing matrix) #16852 (@krassowski)
• Upgrade to mermaid 11.x, marked 15.x #15733 (@bollwyvl)

Documentation improvements

• Update changelog links, add new code console screenshot #17392 (@jtpio)
• User-facing changelog for 4.4 #17368 (@krassowski)
• Sort the list of plugins and tokens in the documentation #17364 (@jtpio)
• If subshells are supported by the kernel, send comm messages to subshells #17363 (@martinRenou)
• Move the licenses plugin to apputils-extension #17361 (@jtpio)
• Expose ConfigSectionManager via a plugin #17345 (@jtpio)
• Enforce plugin name convention and rename noncompliant plugins #17338 (@jtpio)
• Clarify documentation on bot privileges for updating snapshots #17336 (@Princekumarofficial)
• Fix heading levels in extension migration guide #17332 (@krassowski)
• Normalize translator plugin ids #17328 (@jtpio)
• Add FAQ item about repeated key press events on OS X #17279 (@jtpio)
• Add item about nightly releases to the FAQ #17278 (@jtpio)
• Update to TypeScript 5.5 #17271 (@jtpio)
• Update to TypeScript 5.4 #17255 (@jtpio)
• Allow <GroupItem> to filter out null children and accept any ReactNode #17244 (@MUFFANUJ)
• Update link to the Zoom channel #17209 (@jtpio)
• Update to TypeScript 5.2 #17207 (@jtpio)
• Document named attributes sanitization #17178 (@hxrshxz)
• Use more formal wording in docs: repo → repository #17152 (@pdarshane)
• Fix jupyverse installation instructions #17137 (@SamuelMarks)
• Update docs to include export and import functionality for overrides.json #17104 (@Darshan808)
• Add Content Provider API #17092 (@krassowski)
• Copy edits in CONTRIBUTING.md #17078 (@JasonWeill)
• Update to typedoc 0.27.4 #17070 (@bollwyvl)
• Drop Python 3.8 #17036 (@jtpio)
• Use Zulip for instant messaging #17031 (@jtpio)
• Update to typedoc 0.26, fix missing module pages #17006 (@bollwyvl)
• Add forgotten bracket in code sample #16998 (@cmarmo)
• Document IInlineCompletionItem.token #16959 (@fcollonval)
• Add clarification about FileFormat in Services.Contents #16927 (@cmarmo)
• Fix inconsistency in Contents.IChangedArgs documentation #16918 (@cmarmo)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)
• Allow customizing the ServiceManager with plugins #16794 (@jtpio)
• Move @jupyterlab/debugger icons to @jupyterlab/ui-components #16745 (@joaopalmeiro)

Contributors to this release

(GitHub contributors page for this release)

@Adam-D-Lewis | @afshin | @ajbozarth | @AmberArr | @andrewfulton9 | @andreytaboola | @andrii-i | @bollwyvl | @brichet | @Carreau | @claytonparnell | @cmarmo | @Darshan808 | @davidbrochart | @deephbz | @dependabot | @dlqqq | @echarles | @fcollonval | @fleming79 | @github-actions | @holzman | @hxrshxz | @ianthomas23 | @iisakkirotko | @itsmevichu | @JasonWeill | @jesuino | @joaopalmeiro | @jtpio | @jupyterlab-probot | @kellyrowland | @krassowski | @kuraga | @lumberbot-app | @maitreya2954 | @martenrichter | @martinRenou | @mgeier | @MUFFANUJ | @nkn2022 | @Nriver | @pawel99k | @pdarshane | @peytondmurray | @pre-commit-ci | @Princekumarofficial | @Rishab87 | @rpwagner | @RRosio | @rsaditya01 | @SamuelMarks | @SatyajitRedekar | @SylvainCorlay | @trungleduc | @Zsailer

4.4.0rc1

(Full Changelog)

Bugs fixed

• Fix CommandPalette gets re-rendered even if hidden #17442 (@fcollonval)
• Add distinct accessible aria label for each toolbar #17441 (@nkn2022)
• Fix read-only indicator not showing in RTC docprovider #17440 (@Darshan808)
• Fix visual indication for drag and drop in editor #17438 (@MUFFANUJ)
• Fix usage of ITerminalAPIClient in TerminalConnection #17437 (@jtpio)
• Improve scrolling edge cases #17339 (@krassowski)

Maintenance and upkeep improvements

• Do not try to prettier .mypy_cache #17444 (@krassowski)
• Bump vega from 5.31.0 to 5.32.0 #17436 (@dependabot)
• Make ILabShell optional in the logconsole extension #17430 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@Darshan808 | @dependabot | @fcollonval | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @MUFFANUJ | @nkn2022

4.4.0rc0

(Full Changelog)

Enhancements made

• Create "Kernels" section, split statusbar settings #17415 (@krassowski)
• Improve UX for "Rename on First Save" Dialog #17217 (@MUFFANUJ)

Bugs fixed

• Fix for filebrowser tooltip rendering the kernel info repeatedly #17421 (@itsmevichu)

Maintenance and upkeep improvements

• Update to mermaid 11.6.0, marked 15.0.7 #17396 (@bollwyvl)

Contributors to this release

(GitHub contributors page for this release)

@bollwyvl | @brichet | @itsmevichu | @jupyterlab-probot | @krassowski | @MUFFANUJ

4.4.0b2

(Full Changelog)

Enhancements made

• Add IKernelSpecAPICLient and ITerminalAPIClient, fix definitions of interfaces #17395 (@jtpio)
• If subshells are supported by the kernel, send comm messages to subshells #17363 (@martinRenou)

Bugs fixed

• More specific selector for "Copy Output to Clipboard" #17413 (@jtpio)
• Fix rendering URLs as linked in errors #17371 (@afshin)

Maintenance and upkeep improvements

• Fix types in translation package, remove usages of any #17414 (@krassowski)
• Remove workflow using tj-actions/changed-files #17398 (@jtpio)
• Fix definition of the ILicensesClient interface #17397 (@jtpio)

Documentation improvements

• If subshells are supported by the kernel, send comm messages to subshells #17363 (@martinRenou)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @fleming79 | @ianthomas23 | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @trungleduc

4.4.0b1

(Full Changelog)

Enhancements made

• Add a setting to disable the context menu #17352 (@afshin)
• Add IKernelAPIClient and ISessionAPIClient as options for Kernel.IManager and Session.IManager #17348 (@jtpio)
• Fix checkbox alignment in dialog using display: flex #17343 (@SatyajitRedekar)

Bugs fixed

• Fix cell output stream if previous chunk did not end in new line #17369 (@davidbrochart)
• Use "Move to Trash" over "Delete" when contents manager's delete_to_trash is True #17359 (@jesuino)
• Add widget ID arg to semantic command invocations #17350 (@afshin)
• Fix HTML lang attribute #17337 (@fcollonval)
• Fix typo in LSP console message on kernel change #17323 (@iisakkirotko)
• Fix handling of a null banner in the code console #17322 (@jtpio)
• Updated enabling logic for run-all-below button on Notebook Panel #17298 (@rsaditya01)
• Fix order of extensions in PyPI Extension Manager #17266 (@Princekumarofficial)
• Fix for issue preventing cell metadata removal #17194 (@itsmevichu)
• Fix for unable to lock any extension #16213 (@itsmevichu)

Maintenance and upkeep improvements

• Bump nanoid from 3.3.7 to 3.3.9 in /jupyterlab/tests/mock_packages/test_no_hyphens #17387 (@dependabot)
• Bump @babel/helpers from 7.21.0 to 7.26.10 #17385 (@dependabot)
• Bump axios from 1.7.4 to 1.8.2 #17380 (@dependabot)
• Update the copyright year to 2025 #17379 (@jtpio)
• Update to Playwright 1.51.0 #17372 (@jtpio)
• Require JupyterLab.IInfo for the plugin manager plugin #17367 (@jtpio)
• Move the licenses plugin to apputils-extension #17361 (@jtpio)
• Bump the actions group with 2 updates #17353 (@dependabot)
• Expose ConfigSectionManager via a plugin #17345 (@jtpio)
• Enforce plugin name convention and rename noncompliant plugins #17338 (@jtpio)
• Use ITranslationConnector to fetch the translations #17329 (@jtpio)
• Normalize translator plugin ids #17328 (@jtpio)
• Provide ISettingsConnector via a separate plugin #17327 (@jtpio)
• Provide ITranslatorConnector via a separate plugin #17325 (@jtpio)
• Bump semver and tough-cookie to non-vulnerable versions #17319 (@dlqqq)

Documentation improvements

• Update changelog links, add new code console screenshot #17392 (@jtpio)
• User-facing changelog for 4.4 #17368 (@krassowski)
• Sort the list of plugins and tokens in the documentation #17364 (@jtpio)
• Move the licenses plugin to apputils-extension #17361 (@jtpio)
• Expose ConfigSectionManager via a plugin #17345 (@jtpio)
• Enforce plugin name convention and rename noncompliant plugins #17338 (@jtpio)
• Clarify documentation on bot privileges for updating snapshots #17336 (@Princekumarofficial)
• Fix heading levels in extension migration guide #17332 (@krassowski)
• Normalize translator plugin ids #17328 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrii-i | @bollwyvl | @Darshan808 | @davidbrochart | @dependabot | @dlqqq | @fcollonval | @github-actions | @ianthomas23 | @iisakkirotko | @itsmevichu | @jesuino | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @pre-commit-ci | @Princekumarofficial | @RRosio | @rsaditya01 | @SatyajitRedekar | @trungleduc

4.4.0b0

(Full Changelog)

Enhancements made

• Speed up output rendering: add a limit on max length of protocol to linkify #17264 (@krassowski)
• Remove spurious regex to slightly improve performance of streaming large outputs #17262 (@krassowski)
• Add (opt-in) workspace selector, show workspace name in the title #17256 (@Darshan808)
• Add commands to change the console prompt position to the palette #17253 (@jtpio)
• Add more descriptive labels for fetching Jupyter news options #16848 (@Adam-D-Lewis)
• Allow customizing the ServiceManager with plugins #16794 (@jtpio)

Bugs fixed

• Disable new ctrl + m toggle focus binding, enable configuring it via Keyboard Shortcuts #17291 (@krassowski)
• Allow <GroupItem> to filter out null children and accept any ReactNode #17244 (@MUFFANUJ)
• Cache item state to improve filebrowser's performance #17239 (@Rishab87)
• Fix windowing crash due to out-of-bounds access #17238 (@krassowski)
• Fix vertical scrollbar issue caused by \tag{} directive in LaTeX #17223 (@MUFFANUJ)
• Add missing aria labels in application shell #17192 (@Rishab87)
• Fix misaligned SVG icon in "Add Tag" button #17187 (@MUFFANUJ)
• Ensure search highlight is applied to Python builtin keywords #17160 (@hxrshxz)
• Fix scrolling and selection restoration on undo/redo #17158 (@krassowski)
• Fixing dialog closing unexpectedly when typing in the textarea #17142 (@Rishab87)

Maintenance and upkeep improvements

• Bump dompurify from 3.2.3 to 3.2.4 #17305 (@dependabot)
• Bump vega from 5.24.0 to 5.26.0 #17295 (@dependabot)
• Clean up references to jupyter-packaging #17294 (@jtpio)
• Fix missing checks for author comment association for docs #17289 (@krassowski)
• Fix CI failures caused by changes in jupyterlab-demo #17283 (@krassowski)
• Update to Lumino 2025.2.1, fix the console prompt menu alignment #17274 (@jtpio)
• Update to TypeScript 5.5 #17271 (@jtpio)
• Use the same isPalette arg as for other commands #17258 (@jtpio)
• Update to TypeScript 5.4 #17255 (@jtpio)
• Update to Playwright 1.50 #17254 (@jtpio)
• Bump tj-actions/changed-files from 45.0.5 to 45.0.6 in the actions group #17249 (@dependabot)
• Bump the pip group with 2 updates #17248 (@dependabot)
• Improving reliability of the the galata tests #17221 (@Darshan808)
• Updated mock packages to use hatch-jupyter-builder #17219 (@Rishab87)
• Update to TypeScript 5.2 #17207 (@jtpio)

Documentation improvements

• Add FAQ item about repeated key press events on OS X #17279 (@jtpio)
• Add item about nightly releases to the FAQ #17278 (@jtpio)
• Update to TypeScript 5.5 #17271 (@jtpio)
• Update to TypeScript 5.4 #17255 (@jtpio)
• Allow <GroupItem> to filter out null children and accept any ReactNode #17244 (@MUFFANUJ)
• Update to TypeScript 5.2 #17207 (@jtpio)
• Use more formal wording in docs: repo → repository #17152 (@pdarshane)
• Allow customizing the ServiceManager with plugins #16794 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@Adam-D-Lewis | @afshin | @andrii-i | @brichet | @Carreau | @Darshan808 | @dependabot | @dlqqq | @echarles | @fcollonval | @github-actions | @hxrshxz | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @MUFFANUJ | @pdarshane | @pre-commit-ci | @Rishab87 | @rpwagner | @RRosio | @Zsailer

4.4.0a3

(Full Changelog)

Enhancements made

• Replace R logo with official logo #17216 (@ajbozarth)
• Bump @codemirror/lang-python to provide match-case indentation #17189 (@deephbz)
• Remove --subshell-console flag #17180 (@ianthomas23)
• Fix read-only cells becoming editable on settings change #17167 (@Darshan808)
• Hide the terminals part of the running sessions status bar item by default #16846 (@jtpio)
• Allow changing the position of the code console prompt cell, add settings and toolbar items #13837 (@jtpio)

Bugs fixed

• Fix display of tooltip/title for terminal and kernel sessions statusbar item #17220 (@MUFFANUJ)
• Fix disabling Fuzzy Filtering in the File Browser #17214 (@Darshan808)
• Fix for inconsistent tab closure in "Close All Tabs" operation #17203 (@itsmevichu)
• Fix "running" prompt state with server-side execution #17195 (@krassowski)
• Increase color contrast of operators in code editor #17173 (@hxrshxz)
• Fix emission of lastCell from notebook run actions #17156 (@pawel99k)
• Improve contrast for 'Add' button in Keyboard Shortcuts UI in both dark and light theme #17153 (@hxrshxz)
• Fixed Missing Comma in devcontainer.json to enable functional configuration #17150 (@hxrshxz)
• Fix setter for contentProviderId #17141 (@jtpio)
• Ensure context menu closes when clicking outside it in the minimap #17128 (@peytondmurray)

Maintenance and upkeep improvements

• Bump katex from 0.16.11 to 0.16.21 #17185 (@dependabot)
• Remove skipLibCheck from the test tsconfig #17143 (@jtpio)
• Update to Playwright 1.49 #17085 (@jtpio)

Documentation improvements

• Update link to the Zoom channel #17209 (@jtpio)
• Document named attributes sanitization #17178 (@hxrshxz)

Contributors to this release

(GitHub contributors page for this release)

@ajbozarth | @brichet | @Darshan808 | @deephbz | @dependabot | @github-actions | @hxrshxz | @ianthomas23 | @itsmevichu | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @MUFFANUJ | @pawel99k | @peytondmurray | @pre-commit-ci | @SylvainCorlay

4.4.0a2

(Full Changelog)

New features added

• Support kernel subshells #16963 (@ianthomas23)

Enhancements made

• Add Content Provider API #17092 (@krassowski)
• Add option to render markdown cells upon exit #17076 (@peytondmurray)

Bugs fixed

• Fix title for overscan count option #17130 (@krassowski)
• Respect query argument in settingeditor:open when settings editor is already open #17121 (@andrewfulton9)
• Fix sanitizer call in ToC if html data is array of strings #17114 (@martenrichter)
• Use bare string proxies parameter for httpx<0.28 #17113 (@AmberArr)
• Add missing bind(this) to NotebookAdapter's isReady function #17109 (@martenrichter)

Maintenance and upkeep improvements

• Bump tj-actions/changed-files from 45.0.4 to 45.0.5 in the actions group #17134 (@dependabot)
• Bump the pip group with 3 updates #17133 (@dependabot)
• Fix exposing ISignal instead of Signal #17122 (@jtpio)
• Add pixi files to various ignore files #17120 (@jtpio)
• Bump systeminformation from 5.21.8 to 5.23.8 #17116 (@dependabot)

Documentation improvements

• Fix jupyverse installation instructions #17137 (@SamuelMarks)
• Update docs to include export and import functionality for overrides.json #17104 (@Darshan808)
• Add Content Provider API #17092 (@krassowski)
• Use Zulip for instant messaging #17031 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@AmberArr | @andrewfulton9 | @andreytaboola | @bollwyvl | @Darshan808 | @davidbrochart | @dependabot | @echarles | @fcollonval | @ianthomas23 | @jtpio | @jupyterlab-probot | @krassowski | @martenrichter | @peytondmurray | @SamuelMarks

4.4.0a1

(Full Changelog)

New features added

• Add Settings Import Feature from a JSON File #16994 (@Darshan808)

Enhancements made

• Copy edits in CONTRIBUTING.md #17078 (@JasonWeill)
• Add option for automatic Fill-in-the-Middle inline completion #17067 (@Darshan808)
• Move @jupyterlab/debugger icons to @jupyterlab/ui-components #16745 (@joaopalmeiro)

Bugs fixed

• Fix background of the popup toolbar #17098 (@krassowski)
• Focus terminal after copy and paste operations #17097 (@krassowski)
• Sync Settings Editor with Updated Settings #17091 (@Darshan808)
• Fix consecutive invocations of inline completion #17082 (@fcollonval)
• Fix contrast for unselected search matches in Dark High Contrast theme #17065 (@krassowski)
• Bump @codemirror packages #17064 (@jtpio)
• Use AsyncHTTPTransport over HTTPTransport for httpx #17058 (@krassowski)
• Reset resizeData after column adjustment to allow file dragging #17047 (@Darshan808)
• Fix newline handling in stream outputs #17043 (@davidbrochart)
• Fix filebrowser name order #17038 (@Nriver)
• Improve performance of rendering stdout/stderr #17022 (@krassowski)
• Fixing missed first keystroke on Ctrl+F #17005 (@itsmevichu)
• Fix disappearing cells (heal offsets after updating estimated sizes) #17000 (@krassowski)
• Fix handling of carriage return in output streams #16999 (@davidbrochart)
• Fix emission of FileBrowserModel.onFileChanged for drives (including RTC:) #16988 (@davidbrochart)
• Restore viewport min-height when not windowing #16979 (@brichet)
• Fix regression in standard error rendering performance #16975 (@krassowski)
• Drag image prompt styling #16972 (@JasonWeill)
• Remove unused CSS #16968 (@mgeier)
• Abort saving if a file cannot be saved #16900 (@JasonWeill)

Maintenance and upkeep improvements

• Workaround the Chromium bug with navigator.language #17094 (@krassowski)
• Bump the pip group across 1 directory with 4 updates #17081 (@dependabot)
• Update to typedoc 0.27.4 #17070 (@bollwyvl)
• Bump nanoid from 3.3.6 to to 3.3.8 #17057 (@krassowski)
• Restore bottom httpx version window #17041 (@bollwyvl)
• Bump cross-spawn from 7.0.3 to 7.0.6 in /jupyterlab/tests/mock_packages/test-hyphens-underscore #17040 (@dependabot)
• Drop Python 3.8 #17036 (@jtpio)
• Fixes debugger UI-test with python>=3.12 #17024 (@brichet)
• Bump tj-actions/changed-files from 45.0.3 to 45.0.4 in the actions group #17019 (@dependabot)
• Fix extension manager failure with new httpx versions, bump httpx to v0.28.0 #17013 (@davidbrochart)
• Pin Python version for visual regression testing to 3.11 #16989 (@krassowski)
• Run CI on Python 3.9 and 3.13 (drop 3.8 from testing matrix) #16852 (@krassowski)
• Upgrade to mermaid 11.x, marked 15.x #15733 (@bollwyvl)

Documentation improvements

• Copy edits in CONTRIBUTING.md #17078 (@JasonWeill)
• Update to typedoc 0.27.4 #17070 (@bollwyvl)
• Drop Python 3.8 #17036 (@jtpio)
• Update to typedoc 0.26, fix missing module pages #17006 (@bollwyvl)
• Add forgotten bracket in code sample #16998 (@cmarmo)
• Move @jupyterlab/debugger icons to @jupyterlab/ui-components #16745 (@joaopalmeiro)

Contributors to this release

(GitHub contributors page for this release)

@bollwyvl | @brichet | @claytonparnell | @cmarmo | @Darshan808 | @davidbrochart | @dependabot | @fcollonval | @itsmevichu | @JasonWeill | @joaopalmeiro | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @mgeier | @Nriver | @pre-commit-ci | @RRosio

4.4.0a0

(Full Changelog)

Enhancements made

• Improve drag image styling #16936 (@JasonWeill)
• Update the form schema if it changed #16907 (@brichet)
• Export user preference settings to a json file #16896 (@Darshan808)
• Add option to disable input placeholder text #16713 (@maitreya2954)

Bugs fixed

• Fix moving files when Last Modified column is hidden #16962 (@krassowski)
• Fix prefix removal when reconciling completions from multiple sources #16953 (@krassowski)
• Fix total size estimation in full windowing mode to reduce scrollbar jitter #16950 (@krassowski)
• Enable Scroll for Overflowing Menus on Small Screens #16945 (@Darshan808)
• Disable paste for read-only markdown cells & fix replace all for markdown cells #16943 (@itsmevichu)
• Fix Regex Functionality for Find and Replace / Replace All #16940 (@itsmevichu)
• Add clarification about FileFormat in Services.Contents #16927 (@cmarmo)
• Reuse serverSettings when reopen an existing terminal #16921 (@ianthomas23)
• Maintain autosave timers while disconnected #16903 (@holzman)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)

Maintenance and upkeep improvements

• Fix a test in terminal.spec.ts #16942 (@holzman)
• Fix docmanager/savehandler "continue to save" test #16933 (@holzman)
• Update sphinx requirement from <8.1.0,>=1.8 to >=1.8,<8.2.0 in the pip group across 1 directory #16922 (@dependabot)
• Bump tj-actions/changed-files from 45.0.2 to 45.0.3 in the actions group #16911 (@dependabot)
• Bump mermaid from 10.7.0 to 10.9.3 #16885 (@dependabot)

Documentation improvements

• Document IInlineCompletionItem.token #16959 (@fcollonval)
• Add clarification about FileFormat in Services.Contents #16927 (@cmarmo)
• Fix inconsistency in Contents.IChangedArgs documentation #16918 (@cmarmo)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @brichet | @cmarmo | @Darshan808 | @dependabot | @fcollonval | @holzman | @ianthomas23 | @itsmevichu | @JasonWeill | @jtpio | @jupyterlab-probot | @kellyrowland | @krassowski | @kuraga | @maitreya2954 | @pre-commit-ci

4.3.8

(Full Changelog)

Bugs fixed

• Fix setting allowed schemes on runtime using Sanitizer.setAllowedSchemes #17602 (@bsundaram1)
• Fix error handing in extension manager (typo and undefined variable) #17592 (@Darshan808)
• Fix Settings Editor incorrectly resetting values to default in filtered view #17540 (@yukiiii04)

Maintenance and upkeep improvements

• [4.3.x] Update altair to fix CI #17648 (@jtpio)
• Temporarily ignore links to github.com #17544 (@krassowski)
• Reconfigure 4.3.x branch (4.4.x is new stable) #17536 (@krassowski)

Documentation improvements

• Reconfigure 4.3.x branch (4.4.x is new stable) #17536 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@brichet | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @meeseeksmachine

4.3.7

(Full Changelog)

Bugs fixed

• Fix editing shortcuts on Safari (allow shortcut edit button to receive focus) #17511 (@minrk)
• Fix undo/redo in cells created in none windowing mode #17486 (@krassowski)
• Fix incorrect modifications in collaborative save events #17466 (@Darshan808)
• Fix document search matching text within unsupported SVG tags #17429 (@achhina)
• More specific selector for "Copy Output to Clipboard" #17413 (@jtpio)
• Fix rendering URLs as linked in errors #17371 (@afshin)

Maintenance and upkeep improvements

• [4.3.x] Drop 3.8 from the testing matrix #17522 (@jtpio)
• Updated mock packages to use hatch-jupyter-builder #17219 (@Rishab87)
• Remove workflow using tj-actions/changed-files #17399 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @brichet | @Darshan808 | @fleming79 | @github-actions | @ianthomas23 | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @meeseeksmachine | @nkn2022 | @trungleduc

4.3.6

(Full Changelog)

Enhancements made

• Remove spurious regex to slightly improve performance of streaming large outputs #17262 (@krassowski)

Bugs fixed

• Fix cell output stream if previous chunk did not end in new line #17369 (@davidbrochart)
• Updated enabling logic for run-all-below button on Notebook Panel #17298 (@rsaditya01)
• Fix for issue preventing cell metadata removal #17194 (@itsmevichu)
• Ensure search highlight is applied to Python builtin keywords #17160 (@hxrshxz)
• Add missing aria labels in application shell #17192 (@Rishab87)
• Fixing dialog closing unexpectedly when typing in the textarea #17142 (@Rishab87)

Maintenance and upkeep improvements

• [4.3.x] Update reference snapshots #17383 (@jtpio)
• Bump semver and tough-cookie to non-vulnerable versions #17319 (@dlqqq)
• Bump vega from 5.24.0 to 5.26.0 #17295 (@dependabot[bot])
• Fix missing checks for author comment association for docs #17289 (@krassowski)

Documentation improvements

• Clarify documentation on bot privileges for updating snapshots #17336 (@Princekumarofficial)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrii-i | @bollwyvl | @Carreau | @Darshan808 | @dlqqq | @echarles | @fcollonval | @fleming79 | @github-actions | @hxrshxz | @ianthomas23 | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @martinRenou | @meeseeksmachine | @rpwagner | @RRosio | @trungleduc | @Zsailer

4.3.5

(Full Changelog)

Bugs fixed

• Fix scrolling and selection restoration on undo/redo #17158 (@krassowski)
• Fix windowing crash due to out-of-bounds access #17238 (@krassowski)
• Increase color contrast of operators in code editor #17173 (@hxrshxz)
• Fix disabling Fuzzy Filtering in the File Browser #17214 (@Darshan808)
• Fix display of tooltip/title for terminal and kernel sessions statusbar item #17220 (@MUFFANUJ)
• Fix for inconsistent tab closure in "Close All Tabs" operation #17203 (@itsmevichu)
• Fix emission of lastCell from notebook run actions #17156 (@pawel99k)
• Fix "running" prompt state with server-side execution #17195 (@krassowski)
• Improve contrast for 'Add' button in Keyboard Shortcuts UI in both dark and light theme #17153 (@hxrshxz)
• Ensure context menu closes when clicking outside it in the minimap #17128 (@peytondmurray)
• Fix sanitizer call in ToC if html data is array of strings #17114 (@martenrichter)
• Use bare string proxies parameter for httpx<0.28 #17113 (@AmberArr)
• Add missing bind(this) to NotebookAdapter's isReady function #17109 (@martenrichter)

Documentation improvements

• Document named attributes sanitization #17178 (@hxrshxz)
• Fix jupyverse installation instructions #17137 (@SamuelMarks)
• Use Zulip for instant messaging #17031 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andreytaboola | @bollwyvl | @brichet | @Darshan808 | @davidbrochart | @echarles | @fcollonval | @github-actions | @hxrshxz | @ianthomas23 | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @meeseeksmachine | @SylvainCorlay

4.3.4

(Full Changelog)

Bugs fixed

• Sync Settings Editor with Updated Settings #17091 (@Darshan808)
• Focus terminal after copy and paste operations #17097 (@krassowski)
• Fix background of the popup toolbar #17098 (@krassowski)
• Fix consecutive invocations of inline completion #17082 (@fcollonval)
• Fix contrast for unselected search matches in Dark High Contrast theme #17065 (@krassowski)

Maintenance and upkeep improvements

• Workaround the Chromium bug with navigator.language #17094 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@bollwyvl | @Darshan808 | @davidbrochart | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine

4.3.3

(Full Changelog)

Bugs fixed

• Use AsyncHTTPTransport over HTTPTransport for httpx #17058 (@krassowski)
• Fix filebrowser name order #17038 (@Nriver)
• Remove unused CSS #16968 (@mgeier)
• Improve drag image styling #16936 (@JasonWeill)
• Fix newline handling in stream outputs #17043 (@davidbrochart)
• Reset resizeData after column adjustment to allow file dragging #17047 (@Darshan808)
• Abort saving if a file cannot be saved #16900 (@JasonWeill)

Maintenance and upkeep improvements

• Bump nanoid from 3.3.6 to to 3.3.8 #17057 (@krassowski)
• Restore bottom httpx version window #17041 (@bollwyvl)

Contributors to this release

(GitHub contributors page for this release)

@JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine

4.3.2

(Full Changelog)

Bugs fixed

• Improve performance of rendering stdout/stderr #17022 (@krassowski)
• Fixing missed first keystroke on Ctrl+F #17005 (@itsmevichu)
• Fix disappearing cells (heal offsets after updating estimated sizes) #17000 (@krassowski)
• Fix regression in standard error rendering performance #16975 (@krassowski)
• Fix handling of carriage return in output streams #16999 (@davidbrochart)
• Fix emission of FileBrowserModel.onFileChanged for drives (including RTC:) #16988 (@davidbrochart)
• Drag image prompt styling #16972 (@JasonWeill)
• Restore viewport min-height when not windowing #16979 (@brichet)

Maintenance and upkeep improvements

• Bump required setuptools to 40.8.0 #17032 (@krassowski)
• Fix extension manager failure with new httpx versions, bump httpx to v0.28.0 #17013 (@davidbrochart)
• Pin Python version for visual regression testing to 3.11 #16989 (@krassowski)
• Reconfigure 4.3.x branch #16970 (@krassowski)

Documentation improvements

• Add forgotten bracket in code sample #16998 (@cmarmo)
• Reconfigure 4.3.x branch #16970 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@claytonparnell | @Darshan808 | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @meeseeksmachine | @RRosio

4.3.1

(Full Changelog)

Bugs fixed

• Fix total size estimation in full windowing mode to reduce scrollbar jitter #16950 (@krassowski)
• Fix moving files when Last Modified column is hidden #16962 (@krassowski)
• Enable Scroll for Overflowing Menus on Small Screens #16945 (@Darshan808)
• Fix prefix removal when reconciling completions from multiple sources #16953 (@krassowski)
• Disable paste for read-only markdown cells & fix replace all for markdown cells #16943 (@itsmevichu)
• Maintain autosave timers while disconnected #16903 (@holzman)
• Fix Regex Functionality for Find and Replace / Replace All #16940 (@itsmevichu)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)
• Add clarification about FileFormat in Services.Contents #16927 (@cmarmo)
• Reuse serverSettings when reopen an existing terminal #16921 (@ianthomas23)

Documentation improvements

• Document IInlineCompletionItem.token #16959 (@fcollonval)
• Fix triggering completer on the beginning of the lines #16863 (@andrewfulton9)
• Fix inconsistency in Contents.IChangedArgs documentation #16918 (@cmarmo)

Contributors to this release

(GitHub contributors page for this release)

@Darshan808 | @JasonWeill | @jtpio | @jupyterlab-probot | @kellyrowland | @krassowski | @kuraga | @meeseeksmachine