jupyterlab 4.5.0 on Python PyPI

4.5.0

(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)

jupyterlab 4.5.0 v4.5.0 on Python PyPI

4.5.0

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

jupyterlab 4.5.0
v4.5.0

on Python PyPI