v4.1.0

4.1.0

For the user-facing changes please see the changelog in the documentation.
Changes for extension developers are documented in the extension migration guide.

(Full Changelog)

New features added

• Add virtual scrollbar component to windowed lists. #15533 (@afshin)
• Experimental inline completer #15160 (@krassowski)
• Notebook execution history #15062 (@andrewfulton9)
• Load custom CSS functionality and documentation #14743 (@RRosio)
• Add plugin manager and extension locks #14536 (@krassowski)
• Open files from errors #13390 (@divyansshhh)

Enhancements made

• Show toast notification for running code cell while kernel initializing #15421 (@misterfads)
• Read only status notification on ctrl+s #15317 (@andrewfulton9)
• Store information about execution failure timing #15285 (@krassowski)
• Add defaultPath option to set the default directory for file dialog #15282 (@mmichilot)
• Expand search box horizontally when text grows long #15266 (@sinistersnare)
• Added alt descriptions to a few icon and images #15265 (@j264415)
• Custom kernel message serializer #15254 (@DonJayamanne)
• Improve docker script #15241 (@trungleduc)
• Clarify labels for user inputs and link dangling labels #15222 (@m158261)
• Add support for HTTP proxy in extension discovery #15219 (@dolevf)
• Ensure consistent link underline and color on hover #15181 (@m158261)
• Add the standard SQL mimetype #15180 (@brichet)
• Page_config attribute to handle keydown event at bubbling phase #15142 (@brichet)
• Add more LSP request types #15064 (@krassowski)
• Expose processedItemsCache as a protected in CompleterModel #15025 (@krassowski)
• [Accessibility] Using arrow keys to navigate in toolbars items #15021 (@brichet)
• Remove the loop to discover transform function if not registered #14990 (@brichet)
• Fix filebrowser.open and add ability to provide a factory #14983 (@fcollonval)
• Use config compatible with notebook 7 #14978 (@fcollonval)
• Bump lumino packages #14945 (@fcollonval)
• Recommend major versions for Lab 3/Lab 4 compatible extensions #14908 (@JasonWeill)
• Save and restore sidebar subpanels sizes and expansion states #14901 (@DenisaCG)
• Improve upgrade extension script #14882 (@fcollonval)
• Add a setting to show full path in breadcrumbs #14866 (@dharmaquark)
• Make status bar accessible at 400% zoom by hiding items with priority of zero (default) #14854 (@j264415)
• Add page option copyAbsolutePath enabling to copy absolute path #14842 (@pauky)
• feat: sync theme with system settings #14808 (@skyetim)
• Adds rank to ICompletionProvider #14800 (@hbcarlos)
• Add global keyboard shortcuts for all sidebar widgets #14799 (@g547315)
• Deprecates collaborative flag #14792 (@hbcarlos)
• Add error indicator in Table of Contents #14784 (@skyetim)
• output_area: Add expand/collapse icon in overlay prompt. #14640 (@brijsiyag)
• Activate the deferred plugins after shell restore #14610 (@brichet)
• Add readonly indicator #14600 (@andrewfulton9)
• Fix skiplink and add placeholder for additional skiplinks #14597 (@t03857785)
• Add shortcut tooltips to search buttons #14478 (@bikash30851)
• Add native viewing support for jsonl/ndjson #14460 (@timkpaine)
• Automatically toggle search in selection #14421 (@krassowski)
• Update to marked 7.0.2, add mermaidjs 10.3.1 #14102 (@bollwyvl)

Bugs fixed

• Fix scrollbars partially blocking code completion #15736 (@phil-zxx)
• Fix running kernels listing for kernels without icons #15735 (@paolocarinci)
• Fix cell toolbar getting stuck when using collapse cell #15732 (@FoSuCloud)
• Fix kernels sidepanel scrollbar #15718 (@FoSuCloud)
• Fix overrides.json not working for shortcuts #15716 (@krassowski)
• Add scroll margin to headings for better alignment #15703 (@krassowski)
• Fix scrolling on execution and switching notebook mode #15702 (@krassowski)
• Fix shortcut UI failing on filtering when empty command is given #15695 (@krassowski)
• Fix search highlights removal on clearing input box #15690 (@krassowski)
• Remove the add cell button from the tabbable item #15679 (@brichet)
• Migrate to user level or to none (as fallback) #15678 (@krassowski)
• Ensure void elements have closing slash in mermaid svg #15661 (@bollwyvl)
• Fix jupyterlab downgrade issue on extension installation #15650 (@Sarthug99)
• Fix outputarea package from not detecting updates #15642 (@MFA-X-AI)
• Fix kernel shortcuts, add migration, fix defaults population #15639 (@krassowski)
• Fix new line getting inserted when running cells with Ctrl + Enter #15638 (@krassowski)
• Fix markdown getting un-rendered when focusing on a different cell #15634 (@krassowski)
• Fixes focus indicator on input checkbox for Firefox #15612 (@alden-ilao)
• Upgrade jupyter-ui-toolkit #15600 (@fcollonval)
• Fix ctrl+s notification incorrectly showing up in RTC mode #15597 (@andrewfulton9)
• Fix spurious "File Changed" dialogs using hash from jupyter-server v2.11.1+ #15577 (@Wh1isper)
• Accept/invoke inline completions with Tab #15571 (@krassowski)
• Show the notification center if the status bar is disabled #15568 (@jtpio)
• Fixes the order of items in notebook toolbar #15553 (@brichet)
• Add a title to the Plugin Manager widget #15552 (@jtpio)
• Link to paths starting at Unix-style root in the tracebacks #15548 (@krassowski)
• Fix jupyter labextension watch --help #15542 (@akx)
• Implement level trait for plugin/extension managers #15512 (@krassowski)
• Fix display of float variables with value of infinity in the debugger tree #15487 (@ashna1jain)
• Workaround focus leaving input box on consecutive submissions #15479 (@krassowski)
• Fix FormComponent showing error indicators in all fields when using a customValidate function #15464 (@mmichilot)
• Fix file dialog contents loading with defaultPath, and model disposal #15463 (@mmichilot)
• Fix search CM set up #15459 (@fcollonval)
• Fix search coming back in notebook and editor #15443 (@krassowski)
• Fix Shift + L not working in stdin #15440 (@krassowski)
• Scroll to the active cell when typing (in edit mode) #15413 (@brichet)
• Don't play with the focus when handling focus event #15408 (@fcollonval)
• Updated light theme visited link colour to make text visible #15406 (@m158261)
• Optimized and more robust PyPIExtensionManager #15404 (@fcollonval)
• Do not update filebrowser breadcrumbs when not needed #15387 (@krassowski)
• Improve scrolling to heading #15386 (@fcollonval)
• Don't show default value for objects in Settings Editor #15380 (@firai)
• Fix highlighting search in an out-of-viewport cell #15376 (@fcollonval)
• Remove unnecessary requirement from codemirror service plugin #15362 (@paulkim3151)
• Update notebook window on resize if height changes #15357 (@krassowski)
• Fix scrolling past long outputs in presence of un-rendered headings #15356 (@krassowski)
• Fix missing default property breaking codemirror overrides.json #15346 (@LJMP)
• Fix update button in extension manager #15331 (@nbowditch-einblick)
• Fix collapsed cells styling #15322 (@fcollonval)
• Fix scrolling when dragging files in the file browser #15318 (@krassowski)
• Improve cell toolbar tracker #15314 (@fcollonval)
• Declare Webpack loaders with require.resolve() #15299 (@tibdex)
• Fix autobrackets and other default CM extension #15297 (@fcollonval)
• Fix rulers position with gutter width #15296 (@fcollonval)
• Fix overreactive scrolling to next cell after Shift + Enter #15288 (@krassowski)
• Keep active cell rendered in the full windowed mode #15286 (@krassowski)
• Fix connection loop issue with standalone foreign document in LSP #15262 (@trungleduc)
• Update virtual documents conditionally #15250 (@trungleduc)
• Fix completer documentation panel hiding and animation #15238 (@krassowski)
• Fix MathJax font override, avoid double initialization #15230 (@bollwyvl)
• Fix expanionStates error #15225 (@DenisaCG)
• Fix clicking in the TOC does not scroll #15184 (@parmentelat)
• Fix translation for Mermaid JS context menu label #15178 (@Deepali1211)
• Restore syntax highlighting for mimetypes with more than one identifier #15175 (@jans-code)
• Restore horizontal scrolling of outputs for Firefox #15171 (@fcollonval)
• Fix Show Keyboard Shortcuts command #15170 (@jtpio)
• Copy absolute path with first slash in the file browser #15168 (@pauky)
• Fix completer width inflation and jitter #15132 (@krassowski)
• Fix selection in active line #15129 (@krassowski)
• Fix documentation panel display logic of the completer #15106 (@trungleduc)
• Remove unusedDocuments, fix culling of foreign documents #15105 (@krassowski)
• Fix return type of getMimeTypeByLanguage() #15101 (@krassowski)
• Fix background-color in <select> elements in dark theme #15098 (@Rmarieta)
• Check applicable provider in ProviderReconciliator #15094 (@trungleduc)
• Fix text wrapping in the search box #15080 (@eliaslma)
• Fix _updateConstraints missing protected/private classifier. #15066 (@krassowski)
• Completer: switch renderer & model on update, update on providers change #15065 (@krassowski)
• HoverBox: adjust right when moving node to fit within window #15052 (@krassowski)
• Do not shrink completer's documentation panel #15024 (@krassowski)
• Pass completion context to shouldShowContinuousHint() #15015 (@krassowski)
• fixes codemirror settings #15009 (@andrewfulton9)
• Define cells to run as independent of selection #14996 (@krassowski)
• Fix translation syntax to extract it by the parser #14979 (@fcollonval)
• added title to Close tab icon #14973 (@j264415)
• Allow opening links in new tabs when HTML is trusted #14933 (@yuvipanda)
• Custom script to upgrade staging/yarn.lock #14926 (@fcollonval)
• Fix incorrect indentation browser_check.py #14921 (@mctoohey)
• Improve LSP API #14920 (@hbcarlos)
• Make the DOM structure of linked output views more similar to outputs #14911 (@SylvainCorlay)
• In defer mode render enough cells to fill the viewport #14865 (@fcollonval)
• Fix CodeMirror tooltip positioning and tooltip background #14858 (@krassowski)
• Enable keyboard navigation in the statusbar #14853 (@j264415)
• fix: update blocked extensions uris #14846 (@emmanuel-ferdman)
• Fix CodeMirror theme selection background color #14841 (@AllanChain)
• Fix icon and theme/styles for grid in CSV/TSV viewer #14822 (@krassowski)
• Adds this context when calling ICompletionProvider.modelFactory #14812 (@hbcarlos)
• Adds missing parameters to ICompleterProvider API #14809 (@hbcarlos)
• Blur footer for any key that triggers a 'select above', not just ArrowUp #14796 (@smacke)
• Fix incorrect CSS value for statusbar popover shadow #14789 (@krassowski)
• Emit changed signal from output area when an output is updated #14785 (@bollwyvl)
• Removes context data from shared model #14771 (@hbcarlos)
• fix: out of order headings display in toc #14753 (@skyetim)
• Fix indentation problem after multi-line Python function definition #14748 (@FoSuCloud)
• Fix View Menu "Show line number" does not show its corresponding shortcut #14740 (@FoSuCloud)
• Fix kernel message deserialization #14721 (@davidbrochart)
• Expose serverCapabilities, provides, and updateLogging #14712 (@krassowski)
• Fix HTML lang being set to 'default' resulting in blind users with screenreader reading everything in German #14705 (@andrii-i)
• Ensure the kernel selector show the default kernel if notebook does not have a valid assigned kernel #14693 (@echarles)
• Add a title to the Markdown Preview widget #14681 (@jtpio)
• Fix semantic commands enabled status #14664 (@fcollonval)
• Improve typing to avoid bad usage of context.contentsModel.content #14660 (@fcollonval)
• Hide completer when changing notebook tabs #14534 (@nishikantparmariam)
• Add min width to constrain resizing in side-by-side view #14529 (@dharmaquark)
• Fix tab trap notebook cells #14115 (@gabalafou)

Maintenance and upkeep improvements

• Bump the actions group with 3 updates #15728 (@dependabot)
• Bump the actions group with 3 updates #15727 (@dependabot)
• Replace ifaxity/wait-on-action wrapper with direct wait-on use #15721 (@krassowski)
• Run Mermaid tests on CI #15717 (@krassowski)
• Bump hatchling #15694 (@fcollonval)
• Switch from pytest-tornasync to pytest-jupyter #15662 (@KiranmaiKalla)
• Update to mermaid 10.7.0 #15647 (@bollwyvl)
• Use jlpm for docs snapshots too #15646 (@krassowski)
• Use jlpm as npm client for snapshot updates #15641 (@krassowski)
• Fix syntax error in benchmark workflow #15630 (@krassowski)
• Bump follow-redirects from 1.15.2 to 1.15.4 #15622 (@dependabot)
• Bump the actions group with 1 update #15620 (@dependabot)
• Bump the actions group with 2 updates #15619 (@dependabot)
• Fix dependabot config #15618 (@fcollonval)
• Restore previous Galata page.filebrowser.refresh() timeout logic #15607 (@jtpio)
• Revert "Bump actions/labeler from 4 to 5" #15593 (@jtpio)
• Group dependabot updates #15592 (@jtpio)
• Bump pandas from 2.1.3 to 2.1.4 #15588 (@dependabot)
• Bump altair from 5.1.2 to 5.2.0 #15585 (@dependabot)
• Bump actions/stale from 8 to 9 #15583 (@dependabot)
• Bump actions/labeler from 4 to 5 #15582 (@dependabot)
• Bump tj-actions/changed-files from 40.2.0 to 41.0.1 #15581 (@dependabot)
• Bump github/codeql-action from 2 to 3 #15580 (@dependabot)
• Update to actions/upload-artifact@v4 and action/download-artifact@v4 #15536 (@jtpio)
• Restore some CSS rules for backward compatibility #15530 (@brichet)
• Ignore ipython in dependabot updates #15528 (@jtpio)
• Revert "Bump yarn to 3.6.4" #15526 (@jtpio)
• Fix visual tests, allow to disable termianal cursor blinking #15524 (@krassowski)
• Manually trigger benchmark tests instead of running them on pull_request_review #15523 (@jtpio)
• Clean up eslint scripts in the translation packages #15504 (@jtpio)
• Bump ESLint dependencies #15502 (@jtpio)
• Adopt ruff format #15499 (@jtpio)
• Pin actions/labeler to v4 to fix failing CI action #15496 (@krassowski)
• Bump jupyterlab-language-pack-zh-cn from 4.0.post3 to 4.0.post6 #15477 (@dependabot)
• Bump matplotlib from 3.7.2 to 3.8.2 #15475 (@dependabot)
• Bump scipy from 1.11.3 to 1.11.4 #15474 (@dependabot)
• Bump pandas from 2.1.2 to 2.1.3 #15473 (@dependabot)
• Bump dessant/lock-threads from 4 to 5 #15472 (@dependabot)
• Bump tj-actions/changed-files from 40.0.2 to 40.2.0 #15471 (@dependabot)
• Bump actions/github-script from 6 to 7 #15470 (@dependabot)
• Bump rjsf to 5.13.4 #15469 (@mmichilot)
• Fix URLs in debugger-extension #15462 (@fcollonval)
• Upgrade releaser workflows for silent support, use npm provenance and PyPI trusted publishers #15446 (@fcollonval)
• Maintenance bump lumino #15405 (@fcollonval)
• Bump axios from 1.3.4 to 1.6.1 #15385 (@dependabot)
• Update @jupyter/ydoc in dev_mode #15383 (@fcollonval)
• Exclude ipynb files in prettier pre-commit #15378 (@brichet)
• More robust galata/UI tests #15355 (@krassowski)
• Bump tj-actions/changed-files from 39.2.0 to 40.0.2 #15342 (@dependabot)
• Bump ipywidgets from 8.1.0 to 8.1.1 #15340 (@dependabot)
• Bump altair from 5.1.1 to 5.1.2 #15339 (@dependabot)
• Bump scipy from 1.11.1 to 1.11.3 #15338 (@dependabot)
• Bump pandas from 2.1.1 to 2.1.2 #15337 (@dependabot)
• Bump black[jupyter] from 23.7.0 to 23.10.1 #15336 (@dependabot)
• Turn off navigation with keys #15310 (@fcollonval)
• Bump mermaid 10.6.0, marked 9.1.2, rjsf 5.13.2 #15302 (@bollwyvl)
• Improve error message when deprecated --collaborative is used without jupyter-collaboration #15300 (@mdengler)
• Bump yarn to 3.6.4 #15295 (@fcollonval)
• Update benchmark reporter snapshots #15279 (@krassowski)
• Bump @babel/traverse from 7.21.2 to 7.23.2 #15272 (@dependabot)
• Update canvas to a version with prebuilds for nodeJS 20 #15270 (@fcollonval)
• Bump @jupyterlab/rendermime-interfaces to 3.9.0-alpha.1 #15240 (@jtpio)
• Fix completer tests after transition to pointer events #15237 (@krassowski)
• Bump postcss from 8.4.25 to 8.4.31 #15218 (@dependabot)
• Update to marked 9.0.3, mermaidjs 10.5.0, update binder config #15214 (@bollwyvl)
• Switch from hub to gh CLI #15213 (@fcollonval)
• Reword LSP tracker plugin description #15209 (@fcollonval)
• Restore removed API #15204 (@fcollonval)
• Bump ipython from 8.15.0 to 8.16.1 #15200 (@dependabot)
• Bump jupyterlab-language-pack-zh-cn from 4.0.post2 to 4.0.post3 #15194 (@dependabot)
• Bump pandas from 2.1.0 to 2.1.1 #15193 (@dependabot)
• Bump altair from 5.0.1 to 5.1.1 #15192 (@dependabot)
• Bump ruff from 0.0.287 to 0.0.291 #15190 (@dependabot)
• Bump actions/checkout from 3 to 4 #15189 (@dependabot)
• Bump toshimaru/auto-author-assign from 1.6.2 to 2.0.1 #15188 (@dependabot)
• Bump tj-actions/changed-files from 38.2.0 to 39.2.0 #15187 (@dependabot)
• Bump iterative/setup-cml from 1 to 2 #15186 (@dependabot)
• Remove hard coded text-plain in multiple places #15182 (@fcollonval)
• Update to @jupyter/ydoc 1.1.1 #15177 (@jtpio)
• Bump systeminformation from 5.17.12 to 5.21.7 #15147 (@dependabot)
• Add a test for dynamic text spacing for launcher cards #15146 (@j264415)
• Added tests to check for aria labels and roles for accessibility #15137 (@m158261)
• Add a valid email in update extension #15133 (@brichet)
• Install playwright browser in jupyterlab.browser_check #15117 (@brichet)
• Create dev environment with docker #15111 (@trungleduc)
• Enable Playwright trace #15087 (@jtpio)
• Added test to check close tab button has a title #15086 (@m158261)
• Pin skywalking-eyes to patched version detecting license headers after | #15072 (@krassowski)
• React on galata update comment, fix binder URL in docs #15070 (@krassowski)
• License header job fix: ignore text files, update format #15068 (@krassowski)
• Disable language server auto-detection to speed up tests on CI #15061 (@krassowski)
• Bump pandas from 2.0.3 to 2.1.0 #15060 (@dependabot)
• Bump jupyterlab-language-pack-zh-cn from 4.0.post1 to 4.0.post2 #15059 (@dependabot)
• Update sphinx requirement from <7.2.0,>=1.8 to >=1.8,<7.3.0 #15058 (@dependabot)
• Bump ipython from 8.14.0 to 8.15.0 #15057 (@dependabot)
• Bump ruff from 0.0.282 to 0.0.286 #15056 (@dependabot)
• Bump tj-actions/changed-files from 37.5.1 to 38.2.0 #15055 (@dependabot)
• Bump apache/skywalking-eyes from 0.4.0 to 0.5.0 #15054 (@dependabot)
• Commit JS and Python packages in one commit on release #15042 (@jtpio)
• Fix docs build on Gitpod #15041 (@jtpio)
• Deprecate LSP adapter getEditorIndexAt() method #15028 (@krassowski)
• Add | null to the mermaid plugin activate parameter #15003 (@jtpio)
• Fix pepy.tech links #14982 (@fcollonval)
• simplify binder python baseline #14971 (@bollwyvl)
• Check backward dep #14953 (@fcollonval)
• Restore welcome test #14946 (@fcollonval)
• Make the browser check default_url configurable #14944 (@jtpio)
• Fix broken link #14937 (@fcollonval)
• Remove docker ignore file #14936 (@fcollonval)
• Rename readthedoc config #14927 (@fcollonval)
• Bump matplotlib from 3.7.1 to 3.7.2 #14896 (@dependabot)
• Bump ruff from 0.0.276 to 0.0.282 #14895 (@dependabot)
• Bump ipywidgets from 8.0.6 to 8.1.0 #14894 (@dependabot)
• Bump black[jupyter] from 23.3.0 to 23.7.0 #14893 (@dependabot)
• Bump jupyterlab-language-pack-zh-cn from 4.0.post0 to 4.0.post1 #14892 (@dependabot)
• Bump tj-actions/changed-files from 37.0.5 to 37.5.1 #14891 (@dependabot)
• Fix integration tests #14886 (@fcollonval)
• Bump word-wrap from 1.2.3 to 1.2.4 #14847 (@dependabot)
• Move opening help resources to a separate plugin #14837 (@jtpio)
• Bump version to 4.1.0a0 #14834 (@fcollonval)
• Bump stylelint from 14.16.1 to 15.10.1 #14802 (@dependabot)
• Add style validator #14795 (@krassowski)
• Separate LSP settings handling out to another plugin #14786 (@krassowski)
• fix changed username, pin pydantic<2 for CI #14780 (@bollwyvl)
• Bump tj-actions/changed-files from 36.0.11 to 37.0.5 #14779 (@dependabot)
• Bump ruff from 0.0.271 to 0.0.275 #14778 (@dependabot)
• Bump pandas from 2.0.2 to 2.0.3 #14777 (@dependabot)
• Bump scipy from 1.10.1 to 1.11.1 #14776 (@dependabot)
• Relax Event.IManager interface #14770 (@trungleduc)
• Bump semver from 7.3.8 to 7.5.2, update to Lerna 7 #14750 (@dependabot)
• Clean up obsolete docker #14729 (@fcollonval)
• Port LSP connection manager fixes/enhancements #14714 (@krassowski)
• Drop StatusMessage which is dead code #14713 (@krassowski)
• Update requirements: conda != Python, jupyter-server over notebook #14709 (@krassowski)
• Don't list log file as changes when checking license header #14700 (@fcollonval)
• Ensure not breaking backward compatibility #14699 (@fcollonval)
• Simplify Gitpod command to start JupyterLab #14690 (@jtpio)
• Update the jupyter labextension list compat message #14680 (@jtpio)
• Update to TypeScript 5.1 #14638 (@jtpio)
• Fix OSTYPE check in ci_install.sh #11801 (@jtpio)

Documentation improvements

• Copy edits in LSP support #15730 (@JasonWeill)
• Remove Python 3.0, Notebook 5 mentions from contributor docs #15710 (@JasonWeill)
• Mention jupyter-ai pre-release in inline completer changelog section #15669 (@krassowski)
• User-facing changelog for 4.1 #15648 (@krassowski)
• Fix link to yarn docs in extension migration guide #15640 (@krassowski)
• Fix kernel shortcuts, add migration, fix defaults population #15639 (@krassowski)
• Note changes to statusbar items behaviour in extension migration guide #15556 (@j264415)
• Add virtual scrollbar component to windowed lists. #15533 (@afshin)
• Restore some CSS rules for backward compatibility #15530 (@brichet)
• Implement level trait for plugin/extension managers #15512 (@krassowski)
• Update "jlpm config set registry" command in documentation #15506 (@DcWire)
• Update migration guide about the Toolbar selector #15501 (@brichet)
• Adopt ruff format #15499 (@jtpio)
• Add npm provenance issue to the list of release postmortems #15493 (@jtpio)
• Fix completer cycling documentation formatting #15393 (@krassowski)
• Turn off navigation with keys #15310 (@fcollonval)
• Bump yarn to 3.6.4 #15295 (@fcollonval)
• Expand search box horizontally when text grows long #15266 (@sinistersnare)
• Fixed home page link to sibling project. #15256 (@ericsnekbytes)
• Improve docker script #15241 (@trungleduc)
• Fix typo in Notification.dismiss #15197 (@krassowski)
• Experimental inline completer #15160 (@krassowski)
• Restore dark/light toggle, remove duplicated search box #15141 (@krassowski)
• Create dev environment with docker #15111 (@trungleduc)
• React on galata update comment, fix binder URL in docs #15070 (@krassowski)
• Notebook execution history #15062 (@andrewfulton9)
• Commit JS and Python packages in one commit on release #15042 (@jtpio)
• Fix Binder link in README.md #15039 (@jtpio)
• [Accessibility] Using arrow keys to navigate in toolbars items #15021 (@brichet)
• Remove --UNSAFE flag in the extension tutorial docs #15007 (@jtpio)
• Fix more links #14989 (@fcollonval)
• Fix pepy.tech links #14982 (@fcollonval)
• Fix broken link #14937 (@fcollonval)
• Custom script to upgrade staging/yarn.lock #14926 (@fcollonval)
• Improve LSP API #14920 (@hbcarlos)
• Recommend major versions for Lab 3/Lab 4 compatible extensions #14908 (@JasonWeill)
• Update yarn link documentation #14902 (@gabalafou)
• Align copier version with the extension template #14899 (@jtpio)
• Fix broken link to security model #14861 (@fcollonval)
• Create JupyterLab 3.4.4 accessibility statement #14856 (@isabela-pf)
• Add page option copyAbsolutePath enabling to copy absolute path #14842 (@pauky)
• Move opening help resources to a separate plugin #14837 (@jtpio)
• Bump stylelint from 14.16.1 to 15.10.1 #14802 (@dependabot)
• fix changed username, pin pydantic<2 for CI #14780 (@bollwyvl)
• fix: typo in notifications settings documentation #14747 (@holzman)
• fix: typo in param annotation #14745 (@emmanuel-ferdman)
• Load custom CSS functionality and documentation #14743 (@RRosio)
• fix: typo in common extension points page #14727 (@emmanuel-ferdman)
• Improve examples #14726 (@fcollonval)
• Fix docs for semantic commands registration #14718 (@jtpio)
• Update requirements: conda != Python, jupyter-server over notebook #14709 (@krassowski)
• Ensure documentation switcher data always points to the latest JSON. #14698 (@fcollonval)
• Set out expectations for good first issue label #14686 (@krassowski)
• Update the jupyter labextension list compat message #14680 (@jtpio)
• Document more features for JupyterLab on Binder #14677 (@fcollonval)
• Fix copier command in documentation #14671 (@fcollonval)
• Document UX implications of windowed notebooks on search #14667 (@ericsnekbytes)
• Update contributing.rst for Windows users #14666 (@coriegulik)
• Add plugin manager and extension locks #14536 (@krassowski)
• New docs page: developer/accessibility.html #14426 (@gabalafou)
• Update to marked 7.0.2, add mermaidjs 10.3.1 #14102 (@bollwyvl)

API and Breaking Changes

• Check applicable provider in ProviderReconciliator #15094 (@trungleduc)

Deprecated features

• Restore some CSS rules for backward compatibility #15530 (@brichet)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @akx | @alden-ilao | @AllanChain | @andrewfulton9 | @andrii-i | @ashna1jain | @bikash30851 | @blink1073 | @bollwyvl | @brichet | @brijsiyag | @coriegulik | @davidbrochart | @DcWire | @Deepali1211 | @DenisaCG | @dependabot | @dharmaquark | @divyansshhh | @dolevf | @DonJayamanne | @echarles | @eliaslma | @emmanuel-ferdman | @ericsnekbytes | @fcollonval | @firai | @FoSuCloud | @g547315 | @gabalafou | @GabrielaVives | @github-actions | @HaudinFlorence | @hbcarlos | @holzman | @isabela-pf | @j264415 | @jans-code | @JasonWeill | @jtpio | @jupyterlab-bot | @jupyterlab-probot | @KiranmaiKalla | @krassowski | @LJMP | @lumberbot-app | @m158261 | @mctoohey | @mdengler | @MFA-X-AI | @misterfads | @mlucool | @mmichilot | @nbowditch-einblick | @nishikantparmariam | @paolocarinci | @parmentelat | @pauky | @paulkim3151 | @phil-zxx | @pre-commit-ci | @Rmarieta | @RRosio | @Sarthug99 | @sinistersnare | @skyetim | @smacke | @SylvainCorlay | @t03857785 | @tibdex | @timkpaine | @tonyfast | @trungleduc | @welcome | @Wh1isper | @yuvipanda