Update dependency @jupyterlab/builder to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@jupyterlab/builder	^3.6.3 -> ^4.0.0
@jupyterlab/builder	^3.6.3 -> ^4.0.0

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Release Notes

jupyterlab/jupyterlab (@​jupyterlab/builder)

v4.5.0

Compare Source

(Full Changelog)

New features added

• Add terminal search functionality #​17691 (@​ianthomas23)

Enhancements made

• Fix kernel status display in status bar #​18047 (@​Darshan808)
• Introduce DebuggerDisplayRegistry to provide context-aware display names for debugger panels #​18043 (@​arjxn-py)
• Introduce new token for the default IContentProvider #​18027 (@​martinRenou)
• Update Show more outputs button design #​18021 (@​andrii-i)
• Optimize content-visibility application #​18013 (@​Meriem-BenIsmail)
• Show execution count in breakpoints, callstack, and sources panels while debugging in console #​18003 (@​arjxn-py)
• Keep debugger state though kernel restarts #​17972 (@​gjmooney)
• 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)
• 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)
• Debugger: Visual indicator when debugger is paused #​17891 (@​arjxn-py)
• Add IUserAPIClient to make swapping UserManager easier #​17884 (@​krassowski)
• Provide context about the tag and attribute to the URL resolver #​17882 (@​krassowski)
• Debugger: Show cell execution count in breakpoint/call stack/source panel #​17881 (@​arjxn-py)
• 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)
• Allow to swap the URL resolver #​17784 (@​krassowski)
• Add the "Show Workspace Indicator" command to the palette #​17780 (@​jtpio)
• 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)
• 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)
• Add an optional exportAs method to NbConvert.IManager #​17482 (@​jtpio)
• Reorder extra_labextensions_path to favor defaults #​17476 (@​peytondmurray)
• Use the system clipboard for copying and pasting cells #​17445 (@​yacchin1205)
• Add jump to executing/executed cell button #​16880 (@​Darshan808)

Bugs fixed

• Update lumino to v2025.11.13 #​18108 (@​krassowski)
• Use IntersectionObserver to disable containment for on-screen cells #​18091 (@​Meriem-BenIsmail)
• Fix layout trashing when navigating notebook cell-by-cell #​18080 (@​krassowski)
• Hide “Paused in Debugger” overlay when session terminates #​18067 (@​arjxn-py)
• Debugger: Fix breakpoints lost when closing modules #​18063 (@​HaudinFlorence)
• Fix allow-same-origin exception handling in sandbox when changing trust status #​18049 (@​skapin)
• Don't open default editor if a different kind of editor is already open #​18034 (@​robertstrauss)
• Fix debugger initialization for notebooks on reload #​18028 (@​arjxn-py)
• Only show hidden part of the path in the tooltip of ellipsis #​18026 (@​krassowski)
• Fix ObservableList.removeValue behaviour: if item isn't found, don't just remove the last item! #​18019 (@​robertstrauss)
• Fix breadcrumb drag-and-drop issues #​18014 (@​Darshan808)
• 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 scrolling to targets within notebook #​17928 (@​krassowski)
• Debugger: fix adding a breakpoint on an empty line of code and reclicking after addition #​17923 (@​HaudinFlorence)
• Make file browser optional in file editor extension #​17922 (@​Ankitaupadhaya)
• Debugger: Only send the configurationDone message once as per the DAP #​17912 (@​martinRenou)
• Improve description of windowing mode in settings #​17897 (@​davidbrochart)
• Fix kernel status display in status bar #​17894 (@​Darshan808)
• Correctly dispose TerminalManager even if terminals are not available #​17876 (@​krassowski)
• 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)
• Fix highlighting search on output cells and previous match skips #​17797 (@​itsmevichu)
• Don't create empty page_config in sys_prefix when disabled is empty #​17791 (@​gjmooney)
• Mark cell as dirty at execution start instead of after execution #​17774 (@​Darshan808)
• Preserve original cell during split to maintain kernel connections #​17755 (@​Darshan808)
• 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 file browser navigation with preferredDir #​17723 (@​Darshan808)
• 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)
• Fix error handing in extension manager (typo and undefined variable) #​17592 (@​Darshan808)
• Fixes for accessibility issues reported on missing ARIA roles #​17591 (@​nkn2022)
• Fix stringmd5 in docker image if both md5sum and md5 are present #​17590 (@​ritzdevp)
• Improve the Table of Contents logic to handle more heading definitions #​17583 (@​itsmevichu)
• 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 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)
• Fix incorrect ARIA labels in the MainAreaWidget #​17527 (@​dnlzrgz)
• 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)
• Enable save in collaborative mode #​17508 (@​Darshan808)
• Add aria-hidden to icons (<svg> elements) which do not have a title #​17472 (@​nkn2022)
• Allow grid and flexbox style attributes during Markdown/HTML sanitization #​17408 (@​dotnetautor)
• Fix opening active notebook from kernel - custom drive #​15958 (@​itsmevichu)

Maintenance and upkeep improvements

• Drop altair installation in release test; migrate from deprecated vega_datasets to altair.datasets #​18120 (@​krassowski)
• Make usage2 server startup/teardown test more robust #​18087 (@​krassowski)
• Separate verdaccio install and startup to fix flaky release_test CI job #​18082 (@​krassowski)
• Update PyPI Downloads badge in README.md #​18052 (@​jtpio)
• Update to mermaid 11.12.1 #​18046 (@​bollwyvl)
• Revert "Fix kernel status display in status bar" #​18038 (@​krassowski)
• Fix flaky test Drag file from nested directory to parent via breadcrumb #​18015 (@​Darshan808)
• 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)
• Make debugger console tests more robust and faster #​17937 (@​krassowski)
• Improve robustness of inline-completer UI tests #​17931 (@​ianthomas23)
• Fix integrity checks on CI #​17927 (@​krassowski)
• Ignore npmjs.com in check-links #​17915 (@​jtpio)
• Update to Playwright 1.55.1 #​17914 (@​jtpio)
• Fix failing mermaid snapshots test #​17845 (@​krassowski)
• Avoid ipykernel 7.0.0a2 in CI #​17778 (@​ianthomas23)
• Re-add workflow to reject changes to staging #​17776 (@​jtpio)
• 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)
• 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)
• Use hatch to get the version #​17559 (@​krassowski)
• Temporarily ignore links to github.com #​17544 (@​krassowski)
• 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

• Update JupyterLab pre-release version to 4.5.0rc1 #​18111 (@​krassowski)
• Clean up references to Gitpod #​18107 (@​jtpio)
• Update example for disabling buildAvailable #​18075 (@​Frank-Steiner)
• Update announcement from JupyterCon to JupyterLab 4.5.0 RC #​18074 (@​krassowski)
• Mention JupyterLab 4.5.0 RC in the installation instructions #​18061 (@​krassowski)
• Add plausible and logos to API docs #​18059 (@​krassowski)
• Update PyPI Downloads badge in README.md #​18052 (@​jtpio)
• Convert documentation to Markdown #​18044 (@​jtpio)
• Add plausible.io stats to the jupyterlab docs #​18041 (@​jasongrout)
• Document how to disable the file uploads via the settings #​18040 (@​jtpio)
• Fix changelog URLs #​18031 (@​krassowski)
• Update JupyterCon 2025 announcement links #​17983 (@​krassowski)
• User-facing changelog for JupyterLab 4.5 #​17967 (@​RRosio)
• 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)
• 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)
• 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)
• 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)
• Add a selectionChanged signal to the file browser #​17563 (@​jtpio)
• 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)

@​afshin | @​andrii-i | @​Ankitaupadhaya | @​arjxn-py | @​bollwyvl | @​brichet | @​bsundaram1 | @​choldgraf | @​cmarmo | @​CrafterKolyan | @​Darshan808 | @​davidbrochart | @​dependabot | @​dnlzrgz | @​domoritz | @​dotnetautor | @​ellisonbg | @​EtiennePelletier | @​fcollonval | @​Frank-Steiner | @​github-actions | @​gjmooney | @​HaudinFlorence | @​hxrshxz | @​ianthomas23 | @​isabela-pf | @​itsmevichu | @​jasongrout | @​JasonWeill | @​jrdnbradford | @​jtpio | @​jupyterlab-probot | @​kathatherine | @​kr-2003 | @​krassowski | @​lumberbot-app | @​mahendrapaipuri | @​martinRenou | @​Meriem-BenIsmail | @​minrk | @​MUFFANUJ | @​nkn2022 | @​peytondmurray | @​pre-commit-ci | @​ritzdevp | @​robertstrauss | @​RRosio | @​rschroll | @​shreve | @​skapin | @​superlevure | @​SylvainCorlay | @​tonyfast | @​trungleduc | @​williamstein | @​yacchin1205 | @​yukiiii04 | @​zanieb | @​Zsailer

v4.4.10

Compare Source

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 | [@​lu

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