Important: This documentation covers Yarn 1 (Classic).
For Yarn 2+ docs and migration guide, see yarnpkg.com.

Package detail

@jupyterlab/builder

jupyterlab96.8kBSD-3-Clause4.3.4TypeScript support: included

JupyterLab - Extension Builder

readme

@jupyterlab/builder

A JupyterLab package which provides functions that are used to compile and build JupyterLab extensions.

This package is only intended for use within Node.js environments.

changelog

(changelog)=

JupyterLab Changelog

v4.3

JupyterLab 4.3 includes a number of new features (described below), bug fixes, and enhancements. This release is compatible with extensions supporting JupyterLab 4.0. Extension authors are recommended to consult the Extension Migration Guide which lists deprecations and changes to the public API.

Minimap

The virtual scrollbar now acts as a minimap and exposes information on whether a cell:

  • is running/scheduled ([*]), idle ([ ]) or was already run (e.g. [1])
  • was modified since it was last executed ("dirty") - orange background
  • has an output that contains an error - red background
  • is markdown/code ([ ]/[*]/[1] for code, nothing for markdown)
  • how much text/code it contains
The minimap view

To enable the minimap, click on the hamburger icon (≡) which appears in the notebook's toolbar. If you do not see the hamburger icon, go to Settings → Notebook → Windowing mode and choose "full".

Fullscreen mode

JupyterLab now offers two ways to toggle the full screen mode from within the application:

  • using the View → Appearance → Fullscreen Mode menu entry
  • using a customizable shortcut, by default <kbd>F11</kbd> (custom shortcuts are supported in Chrome, Safari and Edge)

File browser enhancements

The file browser now:

  • supports resizing the columns and remembers the column sizes after reloading JupyterLab
  • supports uploading folders by drag-and-drop
  • supports navigation with a single click (opt-in)
  • has the file filter collapsed by default (funnel icon), increasing the space available
The file browser with resize handle and filter funnel icon

Server-side execution and collaboration

JupyterLab 4.2 added the option for extensions to implement server-side execution, which preserves outputs created when the browser window is closed or disconnected. The server-side execution builds on the same shared models API as the real-time collaboration (RTC).

This release includes additional work, improving both the server-side execution and real-time collaboration (RTC) use cases:

  • the intermediary state of streaming outputs is now optimized away preventing a memory leak when using shared models with long-running computations,
  • the cell execution indicator ([*]) is now synchronized in the model, allowing collaborators to see that a cell is executed, and allowing server-side execution extensions to populate the state accordingly,
  • the issue of spurious "File Change" dialog on save was addressed by enabling the collaborative models extension to update the document hash.

You can try these features by installing extensions:

* while jupyter-server-nbmodel is developed by maintainers of JupyterLab, as of the JupyterLab 4.3.0 release date it is not an official Project Jupyter extension.

Improved kernel and server interactions

The previous release enabled connecting to external kernels, such as those spawned by a third-party application like Blender. In this release the kernel selector dialog was improved to also show the external kernels.

The previous release improved the awareness of the kernel/kernel specification distinction by providing both tree and list view in the kernels sidebar panel, but only the tree view featured the kernel identifiers. In this release both the list and tree view show the kernel identifier stub.

A new toolbar button was added in the kernel allowing to shut down unused kernels (kernels with no widget attached).

List view of the kernels in the sidebar, with the clear Shut Down Unused kernels button focused

The following dialog windows can now be dismissed or silenced:

  • the "Server Connection Error" dialog now has an option to dismiss it for the duration of the session,
  • the "Restart Kernel?" dialog now has an option to not ask again. This preference is persisted in settings ( skipKernelRestartDialog),
The new options added in the server/session dialog windows

v4.2

Workspaces UI

It is now possible to switch and manage workspaces from within JupyterLab.

A context menu opened over the sidebar with workspaces list. The menu has options to manage the workspace over which it was opened - clone, rename, reset, delete, export, and import.

Recently opened/closed files

The jupyterlab-recents extension was integrated into JupyterLab.

Users are now able to:

  • re-open recently used files from the main menu:

    An 'Open Recent' sub-menu in the 'File' menu allowing to re-open recently used files

  • re-open recently closed files from the sidebar:

    A new 'Recently Closed' section in the 'Running' sidebar

  • quickly jump to open tabs/recently closed files by using a new searchable modal dialog (press <kbd>Ctrl</kbd>+<kbd>Alt</kbd>+<kbd>A</kbd> to open the dialog, or click on the [↗] icon in the sidebar):

    A modal dialog for quickly jumping to open/closed files

Full notebook windowing mode by default

Notebooks in the full windowing mode only render the visible cells, significantly improving the performance of the application. One limitation of full mode is that the search function in your browser may produce false negatives; using the JupyterLab search function is recommended. To revert to the behaviour from JupyterLab 4.1, go to Settings → Settings Editor → Notebook, scroll to "Windowing mode", and choose defer.

Improved Shortcuts Editor

Among the numerous improvements and bug fixes for the keyboard shortcuts editor:

  • it is now possible to remove the default shortcuts,
  • shortcuts are correctly sorted when using a language pack,
  • shortcuts with different arguments are now correctly displayed as individual entries.
A context menu opened over a keybinding in the Keyboard Shortcuts setting panel within the Settings widget

Dark high contrast theme

A new theme, JupyterLab Dark High Contrast, which is intended to benefit users with the need for higher contrast, following the WCAG AAA accessibility standard for color contrast. To select this theme, from the menu bar, choose Settings → Theme → JupyterLab Dark High Contrast. Please provide feedback and suggestions on further improvements to this theme.

A dark high contrast theme

Keyboard shortcuts improvements

Following feedback from users, implementation of certain shortcuts was moved from the CodeMirror editor to JupyterLab shortcut system, allowing for better integration:

  • the shortcut for deleting a line was restored to <kbd>Ctrl</kbd>+<kbd>D</kbd> as in JupyterLab 3.x; the shortcut for extending (multi-cursor) selection was remapped to <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>D</kbd>. The <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>K</kbd> shortcut can also be used for deleting lines for compatibility with other editors.
  • the shortcuts for toggling line comments (by default <kbd>Ctrl</kbd>+<kbd>/</kbd>) and block comments (by default <kbd>Alt</kbd>+<kbd>A</kbd>) can be customized in the Shortcuts Editor, enabling users of non-US keyboards to adjust the keybinding to one optimal on their keyboard layout. Please note that the block comment only works in languages which have a dedicated block comment syntax defined in the CodeMirror language data (e.g. C, JavaScript, but not Python). The line comment shortcut can be also used to comment out multiple lines.

v4.1

JupyterLab 4.1 includes a number of new features (described below), bug fixes, and enhancements for extension developers. This release is compatible with extensions supporting JupyterLab 4.0. Extension authors are recommended to consult the Extension Migration Guide which lists deprecations and changes to the public API.

Custom CSS

JupyterLab now supports automatic loading of custom CSS. Themes are the recommended way for customizing the JupyterLab look and feel, while custom CSS is intended for minor personal adjustments.

To opt in, start JupyterLab with the --custom-css flag. The location of the custom.css file is documented in the section on customizing the user interface.

`custom.css` is also available in Jupyter Notebook;
while similar selectors can be used for components shared between JupyterLab 4.1 and Jupyter Notebook 7.0,
there was a different set of selectors in Notebook 6 and older versions.
Users with the custom CSS file using the selectors from legacy Notebook versions
will need to update them and note that tutorials may refer to the selectors for the old Notebook versions.

Diagrams in Markdown

Matching GitHub-Flavoured Markdown, JupyterLab 4.1 now supports Mermaid diagrams. To create a mermaid diagram use the mermaid language specifier for a code block in a markdown cell or document, for example:

```mermaid
flowchart LR

A[Hard] -->|Text| B(Round)
B --> C{Decision}
C -->|One| D[Result 1]
C -->|Two| E[Result 2]
```

which renders as:

Rendered Mermaid diagram going from left to right with modern look; the diagram contains blueish square node with text Hard pointing to round square node with text Round; over the arrow connecting the two nodes there is a word Text; the second node further connects to a rhombus-shaped node with text Decision which then connects to two further nodes, Result 1 and Result 2.

Inline completer

JupyterLab now supports completion presented as ghost text in the cell and file editors, allowing generative AI models to provide multi-line completions. The suggestions are provided by plugins implementing the IInlineCompletionProvider API; by default a single provider which uses kernel history is available.

In a code cell with `def fac` content a ghost text containing a suggestion representing further code of factorial function is shown; over the code cell there is a floating widget allowing to accept the suggestion and iterate between alternative suggestions

The suggestions can be invoked as-you-type or manually using a configurable shortcut (by default <kbd>Alt</kbd> + <kbd>\</kbd>). The default keyboard shortcuts are displayed in the small widget shown when hovering over the ghost suggestion:

  • <kbd>Alt</kbd> + <kbd>End</kbd> - accept suggestion
  • <kbd>Alt</kbd> + <kbd>[</kbd> - previous suggestion
  • <kbd>Alt</kbd> + <kbd>]</kbd> - next suggestion

To enable the inline suggestions based on the kernel history, go to Settings → Inline Completer → History provider → check the "enabled" checkbox.

In addition to the built-in history suggestions, the jupyter-ai extension can provide suggestions from supported models. The jupyter-ai integration with inline completer is available starting with the v2.10.0 release.

The Inline Completer API is still considered experimental and may be subject to changes, please share feedback!

Keyboard navigation improvements

Numerous improvements to keyboard navigation with focus on accessibility and usability are included in this release:

  • the notebook cells now retain focus
  • the focus can now be moved beyond the active notebook
  • the toolbars can now be navigated using arrow keys

For more details, see this post on the Jupyter Blog.

Execution history in notebook

The code from previously executed cells can be used to populate empty cells, allowing to iterate on code from previous cells or even previous sessions (depending on how a specific kernel stores history).

To cycle between history items, press <kbd>Alt</kbd> + <kbd>Arrow Up</kbd> and <kbd>Alt</kbd> + <kbd>Arrow Down</kbd>.

To enable execution history, go to Settings → Notebook → check the "Kernel history access" checkbox.

This feature was already available in the console in previous releases; it only works with kernels supporting execution history requests. To clear the execution history, consult the documentation of the kernel you are using (e.g., IPython/ipykernel).

Opening files from tracebacks

Paths to code files detected in tracebacks returned by kernels on execution error are now turned into links. These links will open the corresponding file for editing, if it is in the Jupyter root directory, or they will open a read-only preview if the file is outside of the root directory and the active kernel supports the debugger.

A link to the file with definition of imported module is shown in the traceback

Error indicator in the table of contents

When a cell fails during execution, an error indicator will be displayed by the corresponding heading, increasing awareness of the notebook state and enabling users to quickly navigate to the cell which requires attention.

Error indicator in the shape of a triangle with exclamation sign (using ⚠ UTF character) shown next to one of the headings in the table of contents panel

Plugin Manager

Individual plugins can now be disabled or enabled from a new Plugin Manager user interface. Each extension is composed of one or more plugins, and plugins form the basis of JupyterLab itself, thus the plugin manager enables more extensive customization of the JupyterLab experience.

An example search result in the plugin extension listing

This feature is intended for advanced users and is documented in depth in the documentation.

Administrators may want to lock specific plugins if they are required for any reason; this will prevent users from disabling the plugins via Plugin Manager and remote API calls. The Plugin Manager itself can be disabled using the CLI.

Virtual scrollbar for notebook in windowed mode

The windowed notebook received an optional scrollbar delineating the active cell and selected cells. Users can jump to a specific cell.

Virtual scrollbar shown on the right side of notebook

To enable the virtual scrollbar, go to Settings → Notebook → Windowing mode, choose "full", and click on the hamburger icon (≡) which appears in the notebook's toolbar.

Virtual scrollbar is considered experimental, please share feedback!

Notifications

JupyterLab 3.6 added a notification center which so far was only used for announcements and version update notifications (both opt-in). JupyterLab 4.1 adds two notifications to guide users in potentially confusing situations:

  • when a user attempts to save a read-only document, a transient notification suggesting using "save as" is displayed
  • when a user attempts to execute a cell before a slow-starting kernel has initialized, a notification is shown to indicate that the cell cannot be yet executed (this is opt-in and needs to be enabled in settings)

Full notebook windowing mode improvements

Notebooks in the full windowing mode only render the visible cells, significantly improving the performance of the application. Numerous improvements for the full windowing mode behaviour (such as scrolling, search, rendering, and navigation) are included in this release (see the list of issues in #15258 for details).

The windowing mode is still experimental and known issues remain to be solved
([#15415](https://github.com/jupyterlab/jupyterlab/issues/15415), [#15465](https://github.com/jupyterlab/jupyterlab/issues/15465),  [#15594](https://github.com/jupyterlab/jupyterlab/issues/15594)).
In addition, a sporadic regression in cell ordering ([#15610](https://github.com/jupyterlab/jupyterlab/issues/15610)) was observed in 4.1 beta,
and remains to be fixed, pending reports from users willing to test the windowing mode in JupyterLab 4.1 to help create reproducible steps that would enable fixing this issue.

Users who already enabled this mode in previous versions are advised to evaluate the benefits of fixes included in 4.1 against regressions linked above before deciding to upgrade.

Search improvements

  • The search box will now grow automatically to accommodate longer text
  • Search in selection can now be toggled using <kbd>Alt</kbd> + <kbd>L</kbd> and automatic search in selection can be configured in settings
  • Tooltips with shortcuts were added to the buttons in the search box to improve discoverability of the shortcuts

Miscellaneous

  • The current theme (dark/light) can now be synced with the browser/system preference (Settings menu → Theme → Synchronise with System Settings)
  • A blue "read-only" status indicator is now displayed in the toolbar of documents which cannot be saved because their model is read-only.
  • Native support for viewing jsonl/ndjson files was added
  • Collapsing of breadcrumbs in the File Browser can be disabled in File Browser settings
  • Extension manager can now use a HTTP proxy for fetching extensions

Moved plugins

Some internal JupyterLab plugins have been re-organized to allow for better flexibility for deployments and downstream applications like Notebook 7. This might affect users that disable specific plugins with the jupyter labextension disable command or the disabledExtensions config option.

  • The help:open command is not defined in the @jupyterlab/help-extension:resources plugin anymore, but has been moved to a new @jupyterlab/help-extension:open plugin instead.

v4.0

4.0.0 - Highlights

Below are the major highlights in JupyterLab 4.0.0.

New text editor

CodeMirror, the text editor used for cells and file editors, has been updated to CodeMirror 6. This brings important accessibility and performance improvements as well as better customization capabilities. We have also improved the editor settings. Previously, users had to customize settings separately for each type of cell, the file editor, and the console editor. Now, you can change your settings in one place. It is now easier to use the default settings for all editors and to change some settings for specific cases. For example, you can now hide line numbers only for markdown cells.

Developers can now provide editor extensions, like themes and programming language parsers, through new application registries.

New extension manager

Starting with JupyterLab 3, extensions can be installed via Python packages (or other providers of prebuilt extensions).

In JupyterLab 4, building on this feature, the Extension Manager now includes extensions from pypi.org. This removes the build step from installation of extension when using Extension Manager.

Developers can provide an alternative package repository to display their own set of extensions.

The Search and Replace functionality has been improved with new features when searching in a notebook:

  • Highlight matches in rendered markdown cells
  • Search in selection
  • Multi-line search
  • Replace using regex capture-group references
  • Replace while preserving case

UI improvements

Some new elements have been added or changed in the UI:

  • Rework the running kernels section
  • "Add a new cell" button at the bottom of a notebook
  • Dialog to display keyboard shortcuts as in the Classic Notebook (use <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>H</kbd>)
  • Display the first line of cell input and outputs when they are collapsed

Accessibility improvements

JupyterLab is not yet fully accessible. Currently, we are focused on making Notebook 7 accessible. A big part of the code is shared, though, and the following accessibility improvements are in JupyterLab 4:

  • Improved focus and keyboard navigation in the file browser
  • More ARIA roles and labels were added to UI elements
  • Main menu collapses to a hamburger menu if there is not enough space to display all items.

Performance enhancements

JupyterLab is now faster, thanks to the following improvements:

  • CSS rules optimization: CSS selectors have been optimized to improve web browser performance when many elements are present on a page.
  • Upgrade to CodeMirror 6: Especially for notebooks with many cells, the new CodeMirror version is far more efficient than the previous version. Large notebooks should load more quickly.
  • Upgrade to MathJax 3: The mathematical equations renderer library has been been upgraded from v2 to v3 allowing faster rendering.
  • Notebook windowing: By rendering only the parts of a notebook that fit in the web browser viewport, JupyterLab is much more efficient. See an important note below.

Notebook windowing might add side effects for example if some cell outputs are displaying iframes. Therefore it is not yet the default value. But we recommend user to switch to it and report bugs to help us polish it. To test it, you need to set the user setting Notebook > Windowing mode to full. If you have issues with notebook rendering, try changing back to defer or none. (none should be used as a last resort, because it disables all optimizations.)

Real Time Collaboration

JupyterLab 3.6 already made significant improvements to the Real Time Collaboration (RTC) feature. The feature is now in a separate repository: jupyter_collaboration. The rationale is to limit the dependencies for users who don't need RTC. Separating RTC also helps organizations using JupyterLab that do not meet the specific requirements regarding file content management.

To enable RTC, install the jupyter-collaboration package with either pip or conda.

  • with pip: pip install "jupyter-collaboration>=1.0.0a0"
  • with conda: not yet available

RTC highlights in the standalone jupyter-collboration package, version 1.0.0, include:

  • Support for displaying multiple cursors and selections
  • Support for registration of new shared model types

For developers

Here are the main tool updates that will benefit extension authors and developers:

  • TypeScript v5
  • Yarn v3
  • React v18
  • Lumino v2

We recommend using Node.js v18 or newer, because older versions will reach end of life in 2023 or earlier (see Node release schedule).

To ease code migration to JupyterLab 4, developers should review the migration guide. A few existing extensions have already been migrated and can be used as examples:

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

Documentation improvements

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

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

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

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

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

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

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

4.3.0

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@achhina | @afshin | @ajbozarth | @algonell | @andrewfulton9 | @andreytaboola | @andrii-i | @bollwyvl | @brichet | @ChairBorn | @cmarmo | @Darshan808 | @davidbrochart | @dependabot | @dhysdrn | @doshi-kevin | @echarles | @EdsterG | @ellisonbg | @ericsnekbytes | @fcollonval | @g547315 | @gabalafou | @gderocher | @github-actions | @guyq1997 | @HaudinFlorence | @hnben | @itsmevichu | @j264415 | @JasonWeill | @jgoodson | @joaopalmeiro | @jtpio | @jupyterlab-probot | @kaushalaaditya99 | @krassowski | @krishanbhasin-px | @lumberbot-app | @mahendrapaipuri | @maitreya2954 | @Mehak261124 | @mjpsyapse | @Nagidrop | @Nazeeh21 | @nekomeowww | @NexVeridian | @pauldruce | @pre-commit-ci | @Renegade334 | @Rob-P-Smith | @RRosio | @sanskriti2005 | @srdas | @SylvainCorlay | @tonyfast | @welcome | @williamstein | @Wzixiao

4.3.0rc1

(Full Changelog)

Enhancements made

  • Standardize the button role and label for single, dismissal buttons in dialogs #16622 (@joaopalmeiro)

Bugs fixed

Maintenance and upkeep improvements

  • Ignore https://code.visualstudio.com in check-links #16878 (@jtpio)
  • Fix job updating snapshots when triggered by comment on first-time contributor PR #16872 (@krassowski)
  • Bump markdown-to-jsx from 7.3.2 to 7.5.0 #16868 (@dependabot)
  • Update to Playwright 1.48.0 #16854 (@jtpio)
  • Require newer handlebars version (^4.7.7) to silence false positive CVE notifications #16740 (@mjpsyapse)

Documentation improvements

  • Add 4.3.0rc0 to the release postmortems #16858 (@jtpio)
  • Standardize the button role and label for single, dismissal buttons in dialogs #16622 (@joaopalmeiro)

Contributors to this release

(GitHub contributors page for this release)

@Darshan808 | @dependabot | @github-actions | @joaopalmeiro | @jtpio | @jupyterlab-probot | @kaushalaaditya99 | @krassowski | @mjpsyapse | @Nagidrop

4.3.0rc0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@algonell | @ChairBorn | @github-actions | @HaudinFlorence | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @nekomeowww | @pre-commit-ci

4.3.0b3

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@dependabot | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski

4.3.0b2

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Fix typo in the IPropertyInspectorProvider plugin description #16797 (@jtpio)
  • Replace link to accessibility project with a link to accessibility issues #16787 (@jtpio)
  • Remove Python 2 from documentation #16771 (@JasonWeill)
  • Fix compatibility with server-side execution extensions #16764 (@krassowski)
  • Document mandatory steps before running JupyterLab in dev mode #16761 (@cmarmo)

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @bollwyvl | @cmarmo | @Darshan808 | @davidbrochart | @dependabot | @fcollonval | @github-actions | @JasonWeill | @joaopalmeiro | @jtpio | @jupyterlab-probot | @krassowski

4.3.0b1

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@cmarmo | @davidbrochart | @dependabot | @itsmevichu | @JasonWeill | @joaopalmeiro | @jtpio | @jupyterlab-probot | @krassowski | @maitreya2954

4.3.0b0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrii-i | @brichet | @davidbrochart | @dependabot | @dhysdrn | @EdsterG | @fcollonval | @gabalafou | @gderocher | @github-actions | @HaudinFlorence | @itsmevichu | @JasonWeill | @joaopalmeiro | @jtpio | @jupyterlab-probot | @krassowski | @Mehak261124 | @Nazeeh21 | @NexVeridian | @pauldruce | @pre-commit-ci | @Renegade334 | @Rob-P-Smith | @RRosio | @tonyfast | @welcome | @williamstein

4.3.0a2

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@dependabot | @fcollonval | @g547315 | @gabalafou | @github-actions | @j264415 | @JasonWeill | @joaopalmeiro | @jtpio | @jupyterlab-probot | @krassowski | @NexVeridian | @pre-commit-ci | @welcome

4.3.0a1

(Full Changelog)

New features added

Enhancements made

  • Define ICodeCellModel.executionState, deprecate setPrompt() #16431 (@krassowski)
  • Implement viewport tracking and reactive rendering in scrollbar #16392 (@krassowski)
  • Use lazy loading for HTML/PDF files, and help tabs #16387 (@hnben)
  • Add option to dismiss "Server Connection Error" dialog for the duration of the session #16269 (@RRosio)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Fix the description for the main inline completer plugin #16526 (@krassowski)
  • Update JupyterLab 3.x maintenance announcement #16506 (@krassowski)
  • Fix check link CI failure in README (time zone converter site) #16482 (@afshin)
  • Fix typo in documentation - spurious single quote prefix #16476 (@achhina)
  • Ensure api directory is present to build documentation #16467 (@Darshan808)
  • Add a notice for Windows users to activate symbolic links in contributing section #16465 (@Darshan808)
  • Align extension migration docs with the latest extension template #16450 (@jtpio)
  • Add typings to the inline completer example #16421 (@jtpio)
  • Align tutorial with extension template #16414 (@jtpio)
  • Fix failing link check (point to JAWS on Wikipedia) #16365 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@achhina | @afshin | @brichet | @Darshan808 | @davidbrochart | @dependabot | @echarles | @ellisonbg | @fcollonval | @github-actions | @HaudinFlorence | @hnben | @itsmevichu | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @krishanbhasin-px | @lumberbot-app | @mahendrapaipuri | @Mehak261124 | @pre-commit-ci | @RRosio | @sanskriti2005 | @srdas | @welcome

4.3.0a0

(Full Changelog)

Enhancements made

Bugs fixed

  • Fix execution in console in terminal interaction mode #16348 (@krassowski)
  • Fix workspace context menu incorrectly showing up in other sidebar sections #16346 (@krassowski)
  • Fix Shift + Tab contextual help inspector tooltip regression #16343 (@krassowski)
  • Reactive toolbar: avoid simultaneous calls to _onResize() #16335 (@brichet)
  • Upgrade CodeMirror dependencies #16306 (@krassowski)
  • Resetting a shortcut does not restore and enable the default if it was modified #16304 (@itsmevichu)
  • Allow to invoke inline completer anywhere (not only at the end of line) #16298 (@ajbozarth)
  • Search and replace with substring in markdown and raw cells #16293 (@JasonWeill)
  • Wait for the cell toolbar items to be rendered the first time before looking for overlap #16291 (@brichet)
  • Add lowercase proxy vars and make priority consistent with other tools #16287 (@jgoodson)

Maintenance and upkeep improvements

Documentation improvements

  • Run Python tests on MacOS with Python 12, replace canvas with jest-canvas-mock #16314 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@ajbozarth | @brichet | @dependabot | @fcollonval | @github-actions | @itsmevichu | @JasonWeill | @jgoodson | @jtpio | @jupyterlab-probot | @krassowski | @Rob-P-Smith | @welcome | @Wzixiao

4.2.0

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@davidbrochart | @dependabot | @fcollonval | @FoSuCloud | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @welcome

4.2.0rc0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@Alanhou1222 | @divyansshhh | @github-actions | @itsmevichu | @JasonWeill | @jtpio | @jupyterlab-probot | @kolibril13 | @krassowski | @NexVeridian | @Rob-P-Smith | @sawickid | @welcome

4.2.0b3

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@dependabot | @fcollonval | @jupyterlab-probot | @krassowski

4.2.0b2

(Full Changelog)

Enhancements made

  • Use toolkit search input for all search inputs: filebrowser, extension manager, debugger kernel source #16046 (@Mehak261124)
  • Much smaller "Last Modified" column, date #15948 (@JasonWeill)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@AnastasiaSliusar | @andrii-i | @bollwyvl | @brichet | @dependabot | @fcollonval | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @Mehak261124 | @milinm | @Tanmay-Deshmukh | @welcome

4.2.0b1

(Full Changelog)

New features added

  • Dark High Contrast Theme for JupyterLab with Improved Sidebar Focus Indication #15623 (@m158261)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Mention JupyterLab Desktop in the installation section #16100 (@krassowski)
  • Dark High Contrast Theme for JupyterLab with Improved Sidebar Focus Indication #15623 (@m158261)

Contributors to this release

(GitHub contributors page for this release)

@Alanhou1222 | @brichet | @davidbrochart | @dependabot | @e218736 | @echarles | @fcollonval | @FoSuCloud | @gabalafou | @github-actions | @itsmevichu | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @m158261 | @pre-commit-ci | @Susilkessav | @welcome

4.2.0b0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @fcollonval | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @UntitledError-09 | @welcome

4.2.0a2

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@brichet | @dependabot | @erkin98 | @fcollonval | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @mdietz94 | @Mehak261124 | @minrk | @RRosio | @trungleduc | @welcome

4.2.0a1

(Full Changelog)

Enhancements made

  • Allow to customise directory and notebook icon #15828 (@linlol)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrii-i | @blink1073 | @brichet | @dependabot | @diyoyo | @fcollonval | @FoSuCloud | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @linlol | @welcome

4.2.0a0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@AllanChain | @brichet | @dependabot | @ericsnekbytes | @fcollonval | @FoSuCloud | @github-actions | @HaudinFlorence | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @linlol | @lumberbot-app | @trungleduc | @welcome

4.1.2

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@FoSuCloud | @github-actions | @JasonWeill | @jupyterlab-probot | @kiliansinger | @krassowski | @lumberbot-app | @nluetts | @trungleduc | @welcome

4.1.1

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

  • Update jupyter-collaboration for the Binder environment #15767 (@jtpio)
  • Fix failing "Notebook Toolbar › Paste cell" test #15720 (@krassowski)

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@davidbrochart | @dhml | @fcollonval | @g547315 | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @minrk | @pre-commit-ci | @welcome

4.1.0

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

API and Breaking Changes

Deprecated features

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

4.1.0rc1

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@FoSuCloud | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @Sarthug99 | @welcome

4.1.0rc0

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Mention jupyter-ai pre-release in inline completer changelog section #15669 (@krassowski)

Contributors to this release

(GitHub contributors page for this release)

@brichet | @dependabot | @fcollonval | @FoSuCloud | @github-actions | @j264415 | @JasonWeill | @jupyterlab-bot | @jupyterlab-probot | @KiranmaiKalla | @krassowski | @welcome | @Wh1isper

4.1.0b2

(Full Changelog)

Security fixes

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

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

4.1.0b1

(Full Changelog)

Enhancements made

  • Show toast notification for running code cell while kernel initializing #15421 (@misterfads)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • 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)

Contributors to this release

(GitHub contributors page for this release)

@alden-ilao | @andrewfulton9 | @bollwyvl | @brichet | @dependabot | @fcollonval | @github-actions | @j264415 | @jtpio | @jupyterlab-probot | @krassowski | @MFA-X-AI | @misterfads | @pre-commit-ci | @welcome | @Wh1isper

4.1.0b0

(Full Changelog)

New features added

  • Add virtual scrollbar component to windowed lists. #15533 (@afshin)

Enhancements made

  • Custom kernel message serializer #15254 (@DonJayamanne)
  • Clarify labels for user inputs and link dangling labels #15222 (@m158261)
  • Make status bar accessible at 400% zoom by hiding items with priority of zero (default) #14854 (@j264415)
  • Add global keyboard shortcuts for all tab bar widgets #14799 (@g547315)
  • Fix skiplink and add placeholder for additional skiplinks #14597 (@t03857785)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Deprecated features

Contributors to this release

(GitHub contributors page for this release)

@afshin | @akx | @ashna1jain | @brichet | @DcWire | @dependabot | @DonJayamanne | @fcollonval | @g547315 | @gabalafou | @GabrielaVives | @github-actions | @j264415 | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @m158261 | @mmichilot | @parmentelat | @pre-commit-ci | @t03857785 | @tonyfast | @welcome

4.1.0a4

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @blink1073 | @brichet | @fcollonval | @gabalafou | @github-actions | @j264415 | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @m158261 | @mdengler | @parmentelat | @RRosio | @tonyfast | @welcome

4.1.0a3

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @andrii-i | @blink1073 | @bollwyvl | @brichet | @DenisaCG | @dependabot | @dharmaquark | @divyansshhh | @dolevf | @eliaslma | @ericsnekbytes | @fcollonval | @firai | @github-actions | @j264415 | @jtpio | @jupyterlab-probot | @krassowski | @LJMP | @lumberbot-app | @m158261 | @mmichilot | @nbowditch-einblick | @nishikantparmariam | @parmentelat | @pauky | @paulkim3151 | @pre-commit-ci | @sinistersnare | @skyetim | @tibdex | @tonyfast | @trungleduc | @welcome

4.1.0a2

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

API and Breaking Changes

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrewfulton9 | @bikash30851 | @brichet | @Deepali1211 | @dependabot | @echarles | @fcollonval | @gabalafou | @github-actions | @HaudinFlorence | @hbcarlos | @isabela-pf | @jans-code | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @m158261 | @parmentelat | @pre-commit-ci | @Rmarieta | @smacke | @trungleduc | @welcome

4.1.0a1

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@AllanChain | @andrii-i | @bollwyvl | @brichet | @brijsiyag | @coriegulik | @davidbrochart | @DenisaCG | @dependabot | @echarles | @emmanuel-ferdman | @ericsnekbytes | @fcollonval | @FoSuCloud | @g547315 | @gabalafou | @GabrielaVives | @github-actions | @hbcarlos | @holzman | @isabela-pf | @j264415 | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @lumberbot-app | @mctoohey | @pauky | @pre-commit-ci | @skyetim | @SylvainCorlay | @timkpaine | @tonyfast | @trungleduc | @welcome | @yuvipanda

4.0.2

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@dependabot | @ericsnekbytes | @fcollonval | @GabrielaVives | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @pre-commit-ci | @tonyfast

4.0.1

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@brijsiyag | @c3Vu | @dependabot | @fcollonval | @github-actions | @j264415 | @JasonWeill | @JeanLescutMuller | @jtpio | @jupyterlab-probot | @krassowski | @nishikantparmariam | @t03857785 | @tpatel | @tuncbkose | @welcome

4.0.0

(Full Changelog)

JupyterLab 4 is released! :tada:

Check out the new features, improvements and bug fixes: https://jupyterlab.readthedocs.io/en/latest/getting_started/changelog.html#v4-0

For extension authors, there is a migration guide available to help you migrate your extensions to JupyterLab 4: https://jupyterlab.readthedocs.io/en/latest/extension/extension_migration.html#jupyterlab-3-x-to-4-x

For reference, below are the changed since v4.0.0rc1:

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrii-i | @fcollonval | @github-actions | @HaudinFlorence | @jupyterlab-probot | @krassowski | @welcome

4.0.0rc1

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrewfulton9 | @andrii-i | @bikash30851 | @dependabot | @fcollonval | @gabalafou | @github-actions | @JaSpa | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksdev | @pre-commit-ci | @welcome

4.0.0rc0

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

API and Breaking Changes

Contributors to this release

(GitHub contributors page for this release)

@3coins | @a3626a | @aditya211935 | @afshin | @agoose77 | @ajbozarth | @akhmerov | @alec-kr | @Alexboiboi | @andrii-i | @athornton | @blink1073 | @bollwyvl | @brichet | @c00kie123 | @cccs-nik | @chbrandt | @ChristopherDavisUCI | @damiend97 | @davidbrochart | @dependabot | @dlqqq | @dmonad | @kamalika0363 | @domoritz | @echarles | @ellisonbg | @ericsnekbytes | @fcollonval | @firai | @FoSuCloud | @fperez | @frenzymadness | @frivas-at-navteca | @gabalafou | @GabrielaVives | @github-actions | @HaudinFlorence | @hbcarlos | @hsuanxyz | @hugetim | @isabela-pf | @jasongrout | @JasonWeill | @jmk89 | @joaopalmeiro | @JohanMabille | @jtpio | @jupyterlab-probot | @kenyaachon | @kostyafarber | @krassowski | @kulsoomzahra | @liliyao2022 | @malemburg | @markgreene74 | @marthacryan | @martinRenou | @matthewturk | @mctoohey | @meeseeksdev | @meeseeksmachine | @mgcth | @minrk | @mlucool | @NikolayXHD | @oscar6echo | @peytondmurray | @pre-commit-ci | @psychemedia | @RobbyPratl | @RRosio | @rursprung | @siddartha-10 | @steff456 | @SylvainCorlay | @telamonian | @thetorpedodog | @thomasaarholt | @tonyfast | @trallard | @trungleduc | @vidartf | @vthinkxie | @welcome | @yangql176 | @yanmulin | @yczhangsjtu | @yumyumqing | @yuvipanda | @zrottman | @Zsailer

v3.6

3.6.3

(Full Changelog)

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrii-i | @bollwyvl | @brichet | @damiend97 | @fcollonval | @github-actions | @JasonWeill | @jtpio | @jupyterlab-probot | @krassowski | @welcome

3.6.2

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrii-i | @blink1073 | @bollwyvl | @brichet | @bt- | @dlqqq | @domoritz | @echarles | @fcollonval | @fperez | @gabalafou | @GabrielaVives | @github-actions | @goanpeca | @HaudinFlorence | @hbcarlos | @ianhi | @jasongrout | @JasonWeill | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @meeseeksdev | @meeseeksmachine | @mlucool | @psychemedia | @telamonian | @tonyfast | @vidartf | @welcome

3.6.1

(Full Changelog)

Bugs fixed

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@fcollonval | @jupyterlab-probot | @meeseeksmachine

3.6.0

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

API and Breaking Changes

Contributors to this release

(GitHub contributors page for this release)

@afshin | @andrii-i | @blink1073 | @bollwyvl | @brichet | @Carreau | @davidbrochart | @echarles | @ellisonbg | @ericsnekbytes | @fcollonval | @fperez | @github-actions | @HaudinFlorence | @hbcarlos | @jasongrout | @JasonWeill | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @martinRenou | @meeseeksdev | @meeseeksmachine | @psychemedia | @SylvainCorlay | @trungleduc | @uenot | @vidartf | @welcome

v3.5

3.5.0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release) @Carreau | @davidbrochart | @ellisonbg | @fcollonval | @hbcarlos | @jasongrout | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksdev | @meeseeksmachine | @SylvainCorlay | @trungleduc | @welcome

v3.4

3.4.7

(Full Changelog)

Enhancements made

Bugs fixed

Contributors to this release

(GitHub contributors page for this release)

@agoose77 | @blink1073 | @ellisonbg | @fcollonval | @gabalafou | @github-actions | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksmachine | @welcome

3.4.6

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@ajbozarth | @athornton | @blink1073 | @ellisonbg | @fcollonval | @goanpeca | @ian-r-rose | @isabela-pf | @jasongrout | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @JasonWeill | @krassowski | @KrishnaKumarHariprasannan | @malemburg | @manfromjupyter | @meeseeksdev | @meeseeksmachine | @mlucool | @saulshanabrook | @telamonian | @tgeorgeux | @trallard | @VersBersh | @vidartf | @welcome

3.4.5

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @agoose77 | @blink1073 | @davidbrochart | @fcollonval | @jasongrout | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @martinRenou | @meeseeksdev | @meeseeksmachine | @ryanlovett | @SylvainCorlay | @telamonian | @trungleduc | @welcome

3.4.4

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @aiqc | @davidbrochart | @dlqqq | @dmonad | @echarles | @ellisonbg | @fcollonval | @github-actions | @goanpeca | @hbcarlos | @jasongrout | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @JasonWeill | @krassowski | @martinRenou | @meeseeksdev | @meeseeksmachine | @siddartha-10 | @SylvainCorlay | @welcome | @williamstein

3.4.3

(Full Changelog)

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Add more explanation for internationalization (translation python package) #12635 (@a3626a)
  • Add "Open in Simple Mode" contextMenu option #12577 (@fcollonval)

Contributors to this release

(GitHub contributors page for this release)

@afshin | @blink1073 | @bollwyvl | @davidbrochart | @dmonad | @echarles | @ellisonbg | @fcollonval | @github-actions | @hbcarlos | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @meeseeksdev | @meeseeksmachine | @welcome

3.4.2

(Full Changelog)

Bugs fixed

  • Building extensions fail if not using latest patch #12571 (@ajbozarth)
  • fixed shouldOverwrite is never called when rename target exists #12543 (@ephes)

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@fcollonval | @jtpio | @jupyterlab-probot | @karlaspuldaro | @meeseeksmachine | @welcome

3.4.1

(Full Changelog)

Enhancements made

  • Setting to use the advanced setting editor for the settings #12466 (@echarles)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@ajbozarth | @echarles | @fcollonval | @github-actions | @jtpio | @jupyterlab-probot | @meeseeksmachine | @welcome

3.4.0rc0

(Full Changelog)

Enhancements made

  • Display default value in setting editor for changed values #12468 (@echarles)
  • Uses dark theme for Vega when JupyterLab theme is dark #12411 (@JasonWeill)
  • Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar #12028 (@JasonWeill)
  • Customize the file browser toolbar via the settings #12441 (@fcollonval)
  • Wait until file browser commands are ready before activating file browser widget #12435 (@fcollonval)
  • Add a "New Tab" button that opens the launcher #12195 (@ajbozarth)
  • Simplify galata import by proxying expect #12311 (@fcollonval)
  • Open terminal in cwd from launcher #12250 (@rccern)
  • Add support for filtering by field names in setting editor #12082 (@marthacryan)
  • Use transform to quickly switch between tabs. #11074 (@fcollonval)
  • Pop up select kernel dialog when run a cell without kernel #12379 (@a3626a)
  • Allow LauncherModel to be more extendable #12344 (@ajbozarth)
  • Add argument searchText and replaceText to search and replace commands #12310 (@fcollonval)
  • Add argument line and column to codemirror go to line command #12204 (@fcollonval)
  • Default is no virtual rendering + Relax virtual notebook rendering and ensure no structural change until rendering is completed #12258 (@echarles)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar #12028 (@JasonWeill)
  • Customize the file browser toolbar via the settings #12441 (@fcollonval)

Deprecated features

Contributors to this release

(GitHub contributors page for this release)

@bollwyvl | @davidbrochart | @echarles | @fcollonval | @gabalafou | @github-actions | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine | @welcome

3.4.0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar #12028 (@JasonWeill)
  • Customize the file browser toolbar via the settings #12441 (@fcollonval)

Deprecated features

Contributors to this release

(GitHub contributors page for this release)

@afshin | @bollwyvl | @davidbrochart | @echarles | @fcollonval | @gabalafou | @github-actions | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine | @welcome

v3.3

3.3.4

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@aiqc | @blink1073 | @echarles | @fcollonval | @github-actions | @jasongrout | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine | @welcome

3.3.3

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@afshin | @aiqc | @ajbozarth | @blink1073 | @bollwyvl | @damianavila | @davidbrochart | @echarles | @fcollonval | @github-actions | @hbcarlos | @isabela-pf | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @marthacryan | @martinRenou | @meeseeksdev | @meeseeksmachine | @mlucool | @rccern | @welcome

3.3.2

(Full Changelog)

Bugs fixed

Documentation improvements

  • Add note about async, await and Promises in the extension tutorial #12199 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

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

3.3.1

(Full Changelog)

Enhancements made

Bugs fixed

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@davidbrochart | @echarles | @ellisonbg | @fcollonval | @github-actions | @jasongrout | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @martinRenou | @meeseeksmachine | @welcome

3.3.0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

API and Breaking Changes

Other merged PRs

Contributors to this release

(GitHub contributors page for this release)

@agoose77 | @andrewfulton9 | @baggiponte | @blink1073 | @bollwyvl | @Carreau | @davidbrochart | @dmonad | @echarles | @ellisonbg | @ErikBjare | @fcollonval | @github-actions | @hbcarlos | @isabela-pf | @jasongrout | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @JasonWeill | @krassowski | @marthacryan | @meeseeksdev | @meeseeksmachine | @mlucool | @schmidi314 | @SylvainCorlay | @Sync271 | @telamonian | @thesinepainter | @trungleduc | @welcome | @yuvipanda | @Zsailer

v3.2

3.2.9

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @blink1073 | @bollwyvl | @echarles | @fcollonval | @github-actions | @hbcarlos | @isabela-pf | @jasongrout | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @marthacryan | @meeseeksdev | @meeseeksmachine | @mlucool | @welcome | @yuvipanda | @Zsailer

3.2.8

(Full Changelog)

Maintenance and upkeep improvements

  • Use the root yarn.lock in staging when making a release. #11433 (@jasongrout)
  • Update reference snapshot for the completer UI test #11847 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@github-actions | @hbcarlos | @jtpio | @jupyterlab-probot | @meeseeksdev | @meeseeksmachine

3.2.7

No merged PRs

3.2.6

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Other merged PRs

Contributors to this release

(GitHub contributors page for this release)

@andrewfulton9 | @bollwyvl | @davidbrochart | @echarles | @ellisonbg | @fcollonval | @github-actions | @hbcarlos | @jasongrout | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @meeseeksdev | @meeseeksmachine | @schmidi314 | @TheOtherRealm | @thesinepainter | @welcome

3.2.5

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @bollwyvl | @dmonad | @echarles | @ellisonbg | @fcollonval | @github-actions | @hbcarlos | @jasongrout | @jess-x | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine | @trungleduc | @welcome

3.2.4

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @fcollonval | @github-actions | @isabela-pf | @jasongrout | @jtpio | @jupyterlab-probot | @krassowski | @meeseeksdev | @meeseeksmachine | @welcome | @williamstein

3.2.3

(Full Changelog)

Enhancements made

Bugs fixed

  • Handle relative paths to themePath and schemaDir #11427 (@jtpio)
  • Backport PR #11398 on branch 3.2.x (fix #11377 & bump Yjs dependencies & fix modeldb overwriting yjs content) #11408 (@dmonad)

Maintenance and upkeep improvements

  • Backport PR #11420 on branch 3.2.x (Makes ILabShell optional in toc extension) #11421 (@JasonWeill)

Contributors to this release

(GitHub contributors page for this release)

@dmonad | @fcollonval | @github-actions | @jasongrout | @jtpio | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine

3.2.2

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @davidbrochart | @ellisonbg | @fcollonval | @github-actions | @jasongrout | @jess-x | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @meeseeksmachine | @trungleduc | @welcome | @williamstein | @Zsailer

3.2.1

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@3coins | @blink1073 | @ellisonbg | @fcollonval | @github-actions | @jasongrout | @jtpio | @jupyterlab-probot | @meeseeksmachine | @welcome

3.2.0

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@3coins | @achimgaedke | @blink1073 | @echarles | @ellisonbg | @fcollonval | @github-actions | @goanpeca | @hbcarlos | @isabela-pf | @jasongrout | @jess-x | @joelostblom | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @loichuder | @meeseeksdev | @meeseeksmachine | @SylvainCorlay | @trungleduc | @welcome

v3.1

3.1.19

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@agoose77 | @andrewfulton9 | @baggiponte | @blink1073 | @bollwyvl | @Carreau | @davidbrochart | @dmonad | @echarles | @ellisonbg | @fcollonval | @github-actions | @hbcarlos | @isabela-pf | @jasongrout | @jess-x | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @JasonWeill | @krassowski | @meeseeksdev | @meeseeksmachine | @schmidi314 | @SylvainCorlay | @telamonian | @thesinepainter | @trungleduc | @welcome | @williamstein | @yuvipanda | @Zsailer

3.1.18

(Full Changelog)

Bugs fixed

  • Backport PR #11249 on branch 3.1.x (Fix Webpack crypto handling) #11252 (@blink1073)

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @github-actions | @jupyterlab-probot

3.1.17

(Full Changelog)

Bugs fixed

Contributors to this release

(GitHub contributors page for this release)

@jupyterlab-probot | @meeseeksmachine

3.1.16

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @echarles | @ellisonbg | @fcollonval | @github-actions | @goanpeca | @hbcarlos | @isabela-pf | @jasongrout | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @loichuder | @meeseeksdev | @meeseeksmachine | @SylvainCorlay | @welcome

3.1.15

(Skipped due to errors in release process)

3.1.14

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @echarles | @github-actions | @goanpeca | @jess-x | @jupyterlab-probot | @krassowski | @meeseeksdev | @meeseeksmachine | @welcome

3.1.13

(Full Changelog)

Enhancements made

  • Fetch translations via the ServerConnection.ISettings #11091 (@jtpio)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Add a note on the Jupyter Releaser in the extension tutorial #11085 (@jtpio)

Other merged PRs

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @fcollonval | @github-actions | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @meeseeksmachine | @Mithil467 | @trungleduc | @welcome

3.1.12

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Other merged PRs

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @github-actions | @jasongrout | @jtpio | @jupyterlab-dev-mode | @jupyterlab-probot | @krassowski | @meeseeksmachine | @Mithil467

3.1.11

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @echarles | @fcollonval | @jtpio | @jupyterlab-dev-mode | @meeseeksmachine

3.1.10

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

  • Backport #10893 on branch 3.1.x (Add internationalization documentation) #10974 (@fcollonval)
  • Fix formatting of a link in the changelog #10945 (@jtpio)

Contributors to this release

(GitHub contributors page for this release)

@agoose77 | @baggiponte | @blink1073 | @echarles | @ellisonbg | @fcollonval | @goanpeca | @jasongrout | @jtpio | @jupyterlab-dev-mode | @krassowski | @mbektas | @meeseeksdev | @meeseeksmachine | @SarunasAzna | @welcome

3.1.9

(Full Changelog)

Bugs fixed

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @jupyterlab-dev-mode | @meeseeksdev | @meeseeksmachine | @welcome

3.1.8

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @fcollonval | @jupyterlab-dev-mode | @krassowski | @meeseeksdev | @meeseeksmachine

3.1.7

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@3coins | @afshin | @blink1073 | @fcollonval | @goanpeca | @jasongrout | @jupyterlab-dev-mode | @krassowski | @meeseeksmachine | @welcome

3.1.6

(Full Changelog)

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @jupyterlab-dev-mode | @krassowski | @meeseeksmachine

3.1.5

(Full Changelog)

Bugs fixed

Contributors to this release

(GitHub contributors page for this release)

@echarles | @jupyterlab-dev-mode | @meeseeksmachine | @welcome

3.1.2

(Full Changelog)

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Contributors to this release

(GitHub contributors page for this release)

@AnudeepGunukula | @blink1073 | @ellisonbg | @fcollonval | @goanpeca | @jasongrout | @jupyterlab-dev-mode | @krassowski | @meeseeksmachine | @welcome

3.1.1

(Full Changelog)

Bugs fixed

  • Use appName in page title when restoring workspaces (vs 3.1.x) #10724 (@bollwyvl)

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@blink1073 | @bollwyvl | @goanpeca | @hbcarlos | @jtpio | @jupyterlab-dev-mode | @meeseeksmachine | @welcome

3.1.0

(Full Changelog)

User-facing changes

  • From JupyterLab 3.1, file documents and notebooks have collaborative editing using the Yjs shared editing framework. Editors are not collaborative by default; to activate it, start JupyterLab with the --collaborative flag. See full documentation on collaboration.
  • The undo/redo history in the notebook is now document-wide (tracking changes across all cells); the future verisions will enable restoring the previous behaviour of per-cell undo/redo.
  • Table of Contents received multiple new features and settings described in the user documentation.
  • The debugger received many improvements, including basic support for evaluating code at a breakpoint, and for variable inspection.
  • The closing bracket is no longer automatically added by default; the old behaviour can be re-enabled from the menu bar (Settings -> Auto Close Brackets) or from the Advanced Settings Editor.
  • A new visual indicator was introduced to highlight cells in which the code changed in the editor since last execution: A GIF of the visual indicator showing up after editing a cell.
  • Many other new features were added as documented below.

New features added

Enhancements made

Bugs fixed

Maintenance and upkeep improvements

Documentation improvements

Contributors to this release

(GitHub contributors page for this release)

@0618 | @achandak123 | @afonit | @afshin | @AgoCan | @agoose77 | @ainzzorl | @aiqc | @ajbozarth | @akx | @andrewfulton9 | @Ashish-15s | @blink1073 | @bollwyvl | @bsyouness | @cameron-toy | @consideRatio | @darcsoel | @davidbrochart | @dge8 | @dharmaquark | @dhirschfeld | @DianeHu | @dmonad | @echarles | @ellisonbg | @fasiha | @fcollonval | @flying-sheep | @fperez | @gereleth | @goanpeca | @Guillaume-Garrigos | @hbcarlos | @ian-r-rose | @isabela-pf | @jahn96 | @janjagusch | @jasongrout | @jayqi | @jess-x | @jhamet93 | @jluttine | @jochym | @JohanMabille | @jtpio | @jupyterlab-dev-mode | @krassowska | @krassowski | @legendb317 | @loichuder | @maartenbreddels | @manavendrasen | @manfromjupyter | @mariobuikhuizen | @marthacryan | @martinRenou | @mbektas | @meeseeksdev | @meeseeksmachine | @mellesies | @mgeier | @mlucool | @mnowacki-b | @mwakaba2 | @NPetz | @ognjenjevremovic | @ohrely | @palewire | @paravatha | @partev | @plan-do-break-fix | @robertpyke | @RodyLipson | @sarahspak | @saulshanabrook | @shngt | @skyetim | @smacke | @stadlerb | @SylvainCorlay | @telamonian | @tonyfast | @trallard | @vidartf | @vkaidalov-rft | @welcome | @yasmin-bb | @yuvipanda

v3.0

See the JupyterLab 3.0 milestone on GitHub for the full list of pull requests and issues closed.

v3.0.16

(Full Changelog)

Maintenance and upkeep improvements

v3.0.15

(Full Changelog)

Enhancements made

Maintenance and upkeep improvements

  • [3.0.x] Remove Dependency on Jupyter Packaging #10218 (@jtpio)

Documentation improvements

Other merged PRs

v3.0.14

  • Clean up browser check #10080
  • Loosen pin on jupyter-packaging #9998

v3.0.13

  • Add cell id per notebook format 4.5 (#10018)
  • Fix label for "Create Console for Editor" (#9794)
  • Use blobs to set the svg source of an image in the image viewer (#10029)
  • [Fix] Copy shareable link command (#10021)
  • Clarify where the overrides.json file should be in the docs (#9996)
  • Do not make unnecessary npm registry requests (#9974)
  • Fix escaping of urls and paths (#9978)

v3.0.12

  • Fix support for Safari by changing regular expression for Table of Contents (#9962)
  • Fix DocRegistry FileType pattern matching (#9958)

v3.0.11

  • Fix: use process/browser module as real polyfill (#9636)
  • Fix Table of Contents extension markdown bug for HTML comments (#9938)
  • Make Table of Contents extension not rewrite all notebook headers (#9932)

v3.0.10

  • Fix watch mode for external extensions (#9915)
  • Bug fix for extension watch mode behavior (#9889, #9861)

v3.0.9

  • Remove the previous file_to_run logic. (#9848)
  • Enable Caching in Production Minimized Mode. (#9834)
  • Remove the auto-switch to “mobile” mode, and behavior switches associated with mobile mode. (#9832)
  • Fix the display of breakpoints on restore. (#9828)
  • Update CI script timeouts. (#9825)
  • Fix mimerender test example and test in CI. (#9820)

v3.0.8

  • @jupyterlab/rendermime: upgraded marked dep past vulnerability. (#9809)
  • Fix Services Tests. (#9806)
  • Enable jupyter labextension build/watch to work for custom jupyterlab distributions. (#9697)
  • Add hash to webpack requests to enable caching. (#9776)
  • Update MANIFEST.in to include package_data files. (#9780)
  • Correct synchronization of tags between metadata and tags widget. (#9773)
  • Fix use of hyphen in module name. (#9655)
  • Add missing default_url fields to examples. (#9731, #9737)

v3.0.7

  • Add link for prebuilt extensions too. (#9702)
  • Remove outdated note on ipywidgets. (#9707)
  • Fix debug flag handling in build command. (#9715)
  • Update notebook toolbar example docs. (#9705)
  • Use Path.resolve() to get canonical case-sensitive path names. (#9709)

v3.0.6

  • Listen for 'restarting' instead of 'autorestarting' from server. (#9674)
  • Use jupyterhub make_singleuser_app mixin when available. (#9681)
  • Remove jest version constrain. (#9632)
  • Disable large uploads for notebook server < 5.1. (#9628)
  • Ignore timeout errors when preloading settings. (#9629)
  • Customize template branch when upgrading extension. (#9630)
  • Renamed variable that clashed with a module. (#9641)
  • Allow for lazily retrieved documentation (with a getter). (#9643)
  • Upgrade html-webpack-plugin to support webpack 5. (#9651)
  • Fix viewing of PDF files in Safari. (#9656)
  • Add ToC entries for all headers in markdown cells. (#9358)
  • Revert creating a new browser tab for a new launcher when in simple interface. (#9664)
  • Add xeus-robot to the debugger documentation. (#9661)

v3.0.5

  • Enable large file uploads. (#9616)
  • Fix display of ?? help on Windows. (#9617)
  • Update app and federated examples. (#9586)

v3.0.4

  • Do not use ?? in plain js, as it is too new. (#9606)
  • Fix handling of multiple notebooks for the debugger. (#9598)
  • Refactor labhub + CI. (#9604)

v3.0.3

  • Move open_browser to the top level configs of classes. (#9580)

v3.0.2

  • Manage kernel message queueing better to prevent out-of-order execution. (#9571)
  • Fix breadcrumb links. (#9572)
  • Fix integration with JupyterHub. (#9568)
  • Fix parsing of empty CSV files. (#9557)
  • Use tree/table buttons to display debugger variables view mode. (#9502)
  • Update tutorial for final jlab 3 release. (#9562)
  • Fix upgrade_extension.py. (#9551, #9550)
  • Update the Binder link in the README to point to a 3.0 Binder. (#9549)

v3.0.1

  • Fixes error when applying jupyterlab.upgrade_extension on Windows. (#9546)
  • Improve upgrade script to add style settings. (#9515)
  • Fixed incorrect link to GitHub milestone. (#9516)
  • Split contribution guidelines into web-based and local instructions. (#9540)
  • Remove --checkout 3.0 in the extension tutorial. (#9545)
  • Docs updates for 3.0. (#9546)
  • Fix usage test. (#9547)
  • Remove visible 1px border for terminal. (#9548)

v3.0.0

User-facing changes

Extensions can be installed without building JupyterLab with NodeJS

In JupyterLab 3.0, a new recommended way of distributing and installing extensions as Python pip or conda packages is available. Installing such extensions does not require rebuilding JupyterLab and does not require having NodeJS installed. The previous way of distributing extensions as npm packages requiring rebuilding JupyterLab is still available as well. See the documentation for more details.

The JupyterLab interface supports multiple languages

JupyterLab now provides the ability to set the display language of the user interface. See the documentation for more details.

A new visual debugger

JupyterLab now ships with a debugger front-end by default, available for kernels that support the new debugging protocol. See the documentation for more details.

Improvements to Simple Interface mode and Mobile

The Simple Interface mode (previously Single Document Mode) is now more streamlined. JupyterLab now supports showing the current file in use in the browser URL bar, similar to the classic Jupyter Notebook.

Table of Contents is now in core

The popular Table of Contents extension is now part of core JupyterLab. This core extension makes it easy to see an outline view of notebooks and other documents.

Visual filter in file browser

The file browser now has a filter input which filters the list of files using the same fuzzy matching as the command palette.

Property inspector moved to right sidebar

The default interface for JupyterLab now has system-wide sidebar panes on the left side and sidebar panels that interact with a specific document (such as the debugger or notebook property inspector) on the right side. As always, you can move panes between the left and right sidebars (right click on the sidebar icon, or change it in Advanced Settings).

Command Palette

The command palette is now a floating window that appears on top of your JupyterLab workspace. This enables users to quickly invoke a command while keeping the sidebar closed or switching sidebar panels. The command palette can be put back into the sidebar by adjusting the default in Advanced Settings.

Jupyter Server

JupyterLab 3.0 now depends on Jupyter Server, which is a new Jupyter project based on the server portion of the classic Notebook server. See the Migration Guide to migrate custom notebook configuration to Jupyter Server.

For Developers

Prebuilt Extensions

Users will typically consume prebuilt extensions, which are Python packages with static assets built using JupyterLab. See the updated APOD tutorial for the workflow of creating a prebuilt extension from scratch. For existing extensions, there is a new python -m jupyterlab.upgrade_extension script that can be used to upgrade extensions. The script will update the relevant dependencies and add the boilerplate to create the Python package. For extensions that already contained Python packages (typically server extensions), the files are not overwritten, and some manual copying of content is required. See the example, which used this script heavily. There are two highlighted commits that demonstrate upgrading a server extension. Prebuilt extensions are also known as federated extensions in the changes below, since they use the federated module capability in Webpack 5.

  • Better handling of extensions that provide both prebuilt and source extensions. (#9489, #9277)
  • Document new page config conventions (#9454, #9240)
  • Use stylemodule in prebuilt extensions (#9460, #9459)
  • Update style-loader and mini-css-extract-plugin (#9451)
  • Use a more explicit stylemodule key for js css imports (#9427, #9423)
  • Ignore source packages when building or loading jupyterlab if there is a prebuilt package (#9424, #9277)
  • Include federated extensions in extension manager from the api (#9390, #9367)
  • Handle hyphens and switch to importlib in the develop script (#9471)
  • Chunk the jupyterlab and lumino modules together when building the core application (#9359)
  • Link to the documentation in the extension manager federated dialog (#9327)
  • Federated extension script: change package name logic (#9326, #9320)
  • Do not error if requiredversion is not provided. (#9321)
  • Reinstate extension manager (#9317)
  • Built-in extensions using federated dependencies (#9310)
  • Update upgrade script to use labextension for outputdir (#9306)
  • Require 'package' instead of 'package/' so webpack activates sharing (#9300)
  • Enable using federated extensions in dev mode when a flag is set. (#9286, #9235)
  • Update webpack to 5.3.1 (#9245)
  • Adds package installation info to labextension list and uninstall output (#9244)
  • Restructure federated extensions to allow for package manager metadata (#9239)
  • List the dynamic extensions in the extension manager (#9236, #8804)
  • Refuse to uninstall federated extensions. (#9232, #9230)
  • Allow custom webpack config for federated extensions (#9224, #9175)
  • Use the new webpack 5 'auto' publicpath (#9062, #9043)
  • Bump webpack to 5.0rc1 (#9091)
  • Update the upgrade script to not replace dev deps to caret (#9090)
  • Bump webpack to 5.0rc2 (#9103)
  • Fix watch mode (#9101, #9089)
  • Upgrade to webpack 5 (#9148)
  • Fix watch mode (#9146, #9116)
  • Docs: fix commands to watch (#9163)
  • Docs: update jupyter lab command in ext dev guide (#9165, #)
  • Update release test script to also install federated extensions (#9166, #8818)
  • Remove @types/webpack (shipped with webpack 5) (#9167)
  • Mention jupyter-packaging and cookiecutter in migration guide (#9199)
  • Install jupyter_packaging in tutorial (#9190, #9174)
  • Handle sharing of linked packages and locally installed extensions (#9213, #9203)
  • Clean up federated extension install and upgrade (#8974)
  • Add --development and --source-map flags for building extensions. (#8961, #8952)
  • Add extension upgrade script (#8950, #8870, #8869)
  • Improved handling of disabled extensions (#8944, #7481)
  • Add development mode to lab extension build scripts (#8918)
  • Pull federated extension loading data from the webpack compilation (#8913, #8842)
  • Update labextension build cli to include a parameter for setting the webpack publicpath option (#8911)
  • Update apod extension tutorial (#8905, #8859)
  • Let webpack automatically determine the required version of dependencies (#8875)
  • Fix rebuild of federated extension and add discovery metadata to schema (#8874)
  • Fix build issues with publicpath (#8871)
  • Split buildutils into buildutils and builder (#8863, #8857)
  • Dynamically set public path in generated extensions according to page config (#8861, #8827)
  • Clean up federated extension cli (#8855, #46)
  • Fix app example. (#8852)
  • Add lumino dependencies to buildutils so the phosphor webpack aliasing works (#8850, #8822)
  • Add another federated example package. (#8847, #5)
  • Fixes for the federated example (#8846)
  • Add slash to publicpath (#8845)
  • Update watch plugin for webpack 5 (#8841, #8705)
  • Adding a mime extension to the webpack config (#8825)
  • Fix labextension build (#8821)
  • Fix boolean error (#8819)
  • CI and extension developer cleanup (#8810)
  • Adding extension to shared modules list (#8808)
  • Module federation implementation (#8802)
  • Fix examples and update webpack (#8779, #8767)
  • Add extension building scripts (#8772)
  • Keep the existing webpack file in staging (#8673)
  • Workaround for vega build error (#8666)
  • Add missing polyfill (#8664, #8660)
  • Add url as a polyfill dependency for apputils. (#8659, #8657)
  • Update to webpack 5b21 (#8651)
  • Fix examples and break into separate build (#8647, #8646)
  • Add cur extension for url-loader (#8634)
  • Experiment with module federation (#8385)

Jupyter Server

JupyterLab 3.0 uses Jupyter Server instead of the classic Notebook server. Existing server extensions will be shimmed, but it is advised to update extensions to use jupyter_server.

  • Update server(s), nbclassic, pytest fixtures (#9478, #9473)
  • Add jupyter_core as a dependency (#9251)
  • Put exposeappinbrowser and quitbutton values back in page config (#9262)
  • Update favicon handling (#9145, #9138)
  • Enable JupyterLab to run as an old notebook server extension (#8956, #8943)
  • Fixed static_url_prefix, added classic notebook flags and aliases, and bumped jupyterlab_server dependency (#8910)
  • Use favicons provided by jupyter_server (#8898, #8794)
  • Load app_version next to running on jupyter_server (#8889, #8812)
  • Reinstate the labhubapp (#8806, #8704)
  • Jupyterlab as server extension (#7416)

Internationalization

The JupyterLab UI now supports translation.

  • Cleanup tsconfig for the translation extension (#9357)
  • Add options to add prefix to strings (#8946)
  • Add a standalone translation manager to be used outside of plugins (#8945)
  • Add missing string fixes (#8888)
  • Add crowdin badge (#8823)
  • Change optionsmap to a an array of tuples to be able to localize the options (#8820)
  • Localize strings in jlab (#8800)
  • Add translation package (#8681)

Visual Debugger

  • Debugger-sidebar (#9452)
  • Handle multiple scopes in the debugger variables viewer (#9346)
  • Remove the ptvsd dependency from the debugger user docs (#9344)
  • Throws an error if the kernel cannot start the debugger (#9426)
  • Replace switch in debugger (#9432, #9354)
  • Sets terminatedebuggee to false (#9362)
  • Add missing return signatures in debugger sidebar (#9088)
  • Fix invisible breakpoint in debugger (#8908)
  • Port jupyterlab/debugger PR #527 to JupyterLab (#8878)
  • Add jupyterlab debugger to core (#8747, #75)

Table of Contents

  • Update toc ui (#9275)
  • Add tests for the toc (#8757, #8558)
  • Change toc to use labicon (#8692, #8557)
  • Switch from using settings registry to a signal for notebook collapsing behavior in toc (#8601)
  • Remove husky dependencies from toc and toc-extension (#8571)
  • Merge toc extension into core (#8538)

Other

  • Resolve 'restarting' state on reconnect (#9484, #9008)
  • Upgrade typedoc (#9483)
  • Update to typescript 4.1.3 (#9476)
  • Disable shut down all button if there is no running kernel or terminal (#9468, #48)
  • Make some dependencies optional for the code console plugin (#9467)
  • Require tornado>=6.1.0 (#9453)
  • Pin to tornado>=6.1 on binder (#9449)
  • Fix some of the ui-components dependency warnings (#9448)
  • Fix browser test (#9447)
  • Support for lowercase search queries in the file browser (#9446)
  • Set the tabs menu title by default (#9445)
  • Add tests for interop between source and prebuilt extensions (#9443, #9333)
  • Make itreepathupdater optional in file browser plugin (#9442)
  • Make ilabshell optional in the filebrowser factory plugin (#9439)
  • Reduce yarn timeout (#9419)
  • Remove unused requires for the tree-resolver plugin (#9412)
  • Update @types/react to ^17.0.0 (#9409)
  • Make css dependency graph of js modules (#9407)
  • Cleanup unused python imports in examples/ (#9404)
  • Clear the model and the signals upon continue response (#9402)
  • Fix scroll positions when clearing outputs (#9400, #9331)
  • Remove initial extra _onmimetypechanged call (#9394)
  • Bump the eslint dev dependencies (#9391)
  • Reconnect to kernel on manual restart (#9388)
  • Remove the memory usage status bar item (#9386, #9363)
  • Change user references from single-document mode to simple interface (mode) (#9380, #9378)
  • Reconnect to kernel on restart action (#9371)
  • Add a polyfill for path in the base webpack config (#9368, #9345)
  • Add reconnect to kernel main menu item, and notebook implementation. (#9356, #9353)
  • Update blueprint dependencies (#9350)
  • Target sys-prefix by default but allow you to specify user (#9347)
  • Eliminate eager sharing (#9348, #9343)
  • Revert opening in new tab in single-document mode (#9334, #9323)
  • Eager share only core packages and their dependencies (#9332, #9329)
  • Changed the expression to "server unavailable or unreachable" instead of "server not running" (#9325)
  • Increase the pause between publishing and using npm packages to 5 minutes (#9319)
  • Lint extension manager (#9318)
  • Refactor build conventions (#9312, #9304)
  • Make ilabshell optional for the launcher extension (#9305)
  • Update binder to use conda, which allows us to install our own nodejs. (#9298)
  • Move the single document switch to the status bar (#9296)
  • Added utf-8 encoding parameter to create process (#9294, #8600)
  • Fix linting errors in github prs (#9293)
  • Enable mimedocument to use an optional specific renderer (#9291)
  • Pause after publishing packages to allow npm time to update their listing (#9288)
  • Sidebar width (#9287, #8938)
  • Mybinder.org link for people who want to test their own branches in the developer guidelines (#9284, #9255)
  • Remove ensure-max-old-space script (#9282)
  • Fix usage tests refusing to uninstall federated extensions (#9281, #9280)
  • Add a new menu shell area (#9274)
  • Fix #9255 (#9273, #9255)
  • Fix theme path in jupyterlab builder (#9272)
  • Move document mode switch to separate plugin (#9270)
  • Fix styling of single-document mode switch in menu bar (#9267)
  • Make pdf viewer extension recognize pdf files (#9266)
  • Fix relative path handling in markdown images (#9264, #9253, #9243)
  • Add jupyterhub to page config (#9256, #9248)
  • Update to webpack-cli 4.1.0 (#9254)
  • Upgrade to react 17 (#9227)
  • Extension documentation (#9221)
  • Lint fixes (#9218)
  • Update change log (#9217)
  • Update committer list (#9215)
  • Upgrade to TypeScript 4 (#8883)
  • File browser filter (#8615)
  • Update yarn.lock. (#9095)
  • Handle notebook kernel in busy state on page reload (#9077)
  • Use span element to maintain ellipsis (#9075, #9074)
  • Add codemirror singleton plugin (#9067)
  • Support token authentication for terminal websocket communication (#9080)
  • Do not special-case logic for mainareawidget. (#9094)
  • Set an icon for the inspector main area widget (#9093)
  • Fix the open tabs handling of mainareawidget icons (#9092, #126)
  • Sort completion filtering results (#9098, #9048, #9048)
  • Add hover scrolling to menu, like toolbar. (#9097)
  • Add codemirror simple mode addon (#9123)
  • Create codeql-analysis.yml (#9119)
  • Create ensurevimkeymap function (#9161)
  • Increase size of docstring pop up tooltip (#9134, #9085)
  • Add a 2.x -> 3.x migration guide (#9162, #9118)
  • Add an offline circle icon for disconnected or unknown kernel state (#9172)
  • Include js api in sphinx docs (#9179)
  • Update rtd build (#9182)
  • Allow to substitute the default completer renderer (#8930, #8926)
  • Update dependencies for beta (#8921)
  • Test cleanup (#8894)
  • Resize isolated iframes on content height change (#8909, #5696)
  • Update minimum python version to python 3.6. (#8903)
  • Update yarn.lock (#8862)
  • Makes some properties and methods of class dsvmodel accessible outside the class. (#8849, #8848)
  • Do not use token parameters in websocket urls (#8835, #8813)
  • Use blocked/allowed extension naming in jupyterlab (#8799, #8533)
  • Create icon for pdfs in the filebrowser (#8791)
  • Correctly set base_url on workspace apps (#8788)
  • Pass in isessioncontextdialogs to notebookwidgetfactory (#8778)
  • Update encoding version in vega sample. (#8766)
  • Upgrade codemirror (#8739)
  • Rename the logconsole:nboutput plugin id (#8729)
  • Rename the celltags plugin id to @jupyterlab/celltags (#8728)
  • Uncaught typeerror when switching kernels (#8727)
  • Change inspector detail_level to 1 (#8725)
  • Change main menu ranks to allow for application menu to l of file (#8719)
  • Handle errors in async browser_check (#8717, #8709)
  • Add mehmet and andrew to contributors, fix last name order (#8712)
  • Updated puppeteer version to v4.0.0 (#8707)
  • Update the singleton packages to include at least every package with a 'tokens.ts' file (#8703)
  • Update link to jupyter contributing guide (#8697, #8682)
  • Added ability to delete a document from titlebar context menu (#8670)
  • Move codemirror html tree and related css to shadow dom (#8584)
  • Support macoptionismeta option in terminal (#8573, #4236)
  • Align output baseline with prompt (#8561, #8560)
  • Use the same font-family for cell prompt and code (#8553, #8552)
  • Prompt to save files before rebuild (#8526, #7372)
  • Change json5 payload to json payload (#8225)
  • Move notebook logging plugin to notebook-extension package (#7830)
  • First pass at adding scroll to cell method (#6818)
  • Add a debugger section to the user docs and contributing guide (#8977)

Single Document Mode and Mobile Enhancements

  • Make the single document title widget work for widgets that are not main area widgets (#9078)
  • Add border at top of single-document open menus (#9096, #9065)
  • Implement a simple checkbox for single-document mode in the menu bar. (#9100, #8292)
  • Followup #9100: made sdm switch pretty, accessible (#9104)
  • Improved url scheme, state, interactions for single document mode (#8715)
  • Add workspace mime handler and loading/saving workspaces manually (#8691)
  • Modify ansi color fix (#8555, #8554)
  • Improve single document mode to address classic notebook usage cases (#8531)
  • Incrementally improve jupyterlab mobile ux (#8456)

Benchmarks (now a separate repository)

  • Move benchmarks to separate repo (#8795)
  • Fix off by one error in benchmark samples (#8785)
  • Benchmark params configurable and increase timeout (#8786)
  • Benchmarks: new erroroutputs + larger timeout + notebook defs in subfolder (#8783)
  • Add ability to compare benchmarks (#8737)
  • Benchmark notebook loads (#8020)

Bugfixes

  • Fix lerna warning (#9061)
  • Fix doc build (#9063, #9060)
  • Make text settings menu work (#9066, #9042)
  • Fix lint check for the codemirror-extension package (#9087)
  • Fix the examples ci (#9150)
  • Test: cleanup eslint jest rules and files (#9125)
  • Switch to a different murmurhash2 implementation to handle unicode characters (#9158)
  • Add more xxx to the mktemp command in release_test.sh (#9131)
  • Add setup.py and pyproject.toml to manifest.in (#9129)
  • Urlext.join can't handle colon in relative paths (#9169, #9159)
  • Remove absolute document search pane width (#9180, #9178)
  • Update session and kernel manager data only if there was a real change. (#9189, #9133)
  • Update metadata recorded to align better with jupyter protocol (#9206)
  • Fix focus issues with command palette (#9210, #9121)
  • Update mimetype for dragging files (#8965, #8934)
  • Fix comment explaining the extension entry point. (#8964)
  • Security docs: link to jupyter-server instead of jupyter-noteboook (#8954)
  • Fix titles in the extension development docs (#8948)
  • Fix link syntax in the apod tutorial (#8942)
  • Fix codemirror text color issue with dark jupyter theme. (#8919, #8792)
  • Remove the extension path, not the entire extension directory, when uninstalling an extension (#8904)
  • Header 'content-type' should not be overwritten (#8891, #8890)
  • Make sure adding or removing a cell tag actually replaces the tag list, so a changed signal is emitted for the cell metadata (#8751, #8534)
  • Fix up ensure package and repo (#8749, #8748)
  • Add comma in extension_points.rst to fix syntax error of code (#8745)
  • Fix: Contributing Guide Link is Out of Sync (#8665)
  • Fix api docs links (#8624, #8616)
  • Fix handling of disposed widgets after closing a panel in tutorial (#8623)
  • Fix small typos in docs for developing extensions (#8622)
  • Reload the application on manual state reset (#8621)
  • Remove superfluous page reload on workspace reset (#8619)
  • Remove superfluous console log from the application shell (#8618)
  • Fix minor typos in extension tutorial (#8613)
  • Fix minor typos in docs for extensions. (#8551)
  • Fix small typo in install docs (#8550)
  • Fix more linting errors (#8454)
  • Reconnect a websocket when a kernel is restarted. (#8432)

v2.2.x

v2.2.0

See the JupyterLab 2.2 milestone on GitHub for the full list of pull requests and issues closed.

July 2020

We are very excited to add Eric Charles to the core team this month! (#8513)

User-facing changes

  • Cells can no longer be executed while kernels are terminating or restarting. There is a new status for these events on the Kernel Indicator (#8562, #8477)
An animation of the Jupyterlab interface that demonstrates restarting a kernel and running code cells.
  • Adds a visual clue for distinguishing hidden files and folders in the file browser window (#8393)
A screenshot of the JupyterLab file browser.
  • Enable horizontal scrolling for toolbars to improve mobile experience (#8417)
An animation demonstrating improved scrolling and navigation on mobile.
  • Improves the right-click context menu for the file editor (#8425)
A context menu in a text file with options like undo and redo.
  • Merge cell attachments when merging cells (#8427, #8414)
An animation demonstrating merging two cells with image outputs into one cell with both outputs.
  • Add styling for high memory usage warning in status bar with nbresuse (#8437)
A status bar message that says memory 110.51 MB used out of 117.25 MB available.
  • Adds support for Python version 3.10 (#8445)
  • Support live editing of SVG with updating rendering (#8495, #8494)
Demonstrating editing an SVG in one tab and while it is previewed live in another tab.

For developers

  • Specify that we recommend typescript over javascript for extensions (#8411)
  • Lazy load codemirror theme stylesheets. (#8506)
  • Increase the link expiry to one week (#8402)
  • Add documentation on private npm registry usage (#8455, #7827, #7660)
  • Add feature request template + slight reorg in readme (#8467)
  • Add link to react example in extension-examples repo (#8474)
  • Update documentation of whitelist/blacklist (#8540)
  • Improve whitelist figure description in documentation (#8517)

Bugfixes

  • Typo: fix extensino to extension (#8512)
  • Close correct tab with close tab (#8529)
  • Remove unused css rules (#8547, #8537)
  • Fix small typo in getting started docs, proxy (#8549)
  • Fix link on CI badges (#8603)
  • Simplified multicursor backspace code (#8523)
  • Fix recent breaking changes to normalizepath in filebrowser (#8383, #8382)
  • Fix watch mode and add ci test (#8394)
  • Address CI failures (#8433)
  • Fix lint errors in dependency graph script (#8451)
  • Fix lint complaints coming up from github actions (#8452)
  • Address CI usage test timeout (#8464)
  • Add chokidar to dev_mode/package.json (#8481)
  • Fix autolink (#8496)
  • Update phosphor aliases (#8498)
  • Fix default return in Python when extension has no version metadata (#8430)
  • Updated the installation documentation on read the docs to match the readme file on the repo (#8386)
  • Handle quit_button when launched as an extension (#8486, #8483)
  • Add worker-loader (#8593, #8587)

v2.1.x

v2.1.2

  • Fix icon sidebar height for third party extensions (#8333)
  • Pin JupyterLab server requirement more tightly (#8330)
  • Scrolls cells into view after deletion (#8287)
  • Sets data attribute on file type in filebrowser (#8275)

v2.1.1

  • Pin puppeteer to fix ci (#8260)
  • Fix Save As for files without sessions (#8248)

v2.1.0

April 2020

See the JupyterLab 2.1 milestone on GitHub for the full list of pull requests and issues closed.

User-facing changes

  • Display the extension manager in the left sidebar by default. Users will need to acknowledge the disclaimer in the extension manager before using it. (#8050, #8145)
  • Added blacklist and whitelist support <extension_listings> for the extension manager (#7989)
  • Automatically link URLs in notebook output text (#8075, #7393)
  • Added a "Restart Kernel and Run All Cells..." button to the notebook toolbar (#8024)
The main JupyterLab toolbar with focus on the Restart Kernel and Run All Cells button.

  • Added a context menu item for opening a Markdown editor from the Markdown preview (#7942)

  • Support Node.js 10+ (#8112, #8083)

  • Added a command to replace the selection in an editor with text (inserting if there is no selection). This can be assigned a keyboard shortcut, as shown below. We also added a command to go through a series of commands and run the first enabled command. (#7908) Here is a keyboard shortcut to insert text in a currently-active notebook editor:

    {
  command: "notebook:replace-selection",
  selector: ".jp-Notebook",
  keys: ["Ctrl L"],
  args: {text: "lambda x: x"}
}

    Here is a keyboard shortcut to insert text into an editor of the currently active console, file editor, or notebook:

    {
  command: "apputils:run-first-enabled",
  selector: "body",
  keys: ["Ctrl L"],
  args: {
    commands: [
      "console:replace-selection",
      "fileeditor:replace-selection",
      "notebook:replace-selection",
    ],
    args: {text: "lambda x: x"}
  }
}

For developers

  • NotebookWidgetFactory is now a plugin so it can be overridden (#8066, #7996)
  • Many improvements to LabIcon: work with all SVG loaders, improve performance, fix issue with menus from extensions (#8125)
  • Change the header application area to a box panel, which means the header area will display if its children set their minimum height (#8059, #7279)
  • JupyterLab's custom context menu is now disabled on all descendants of a DOM element with a data-jp-suppress-context-menu attribute (#7877, #7670)

Bugfixes

  • Fix property inspector restoration on reload (#8114)
  • Increase the timeout for yarn (#8104, #8102)
  • Fix find and replace with empty strings (#8100, #8098)
  • Select search text when focusing the search overlay (#8073, #7932)
  • Fix attaching images with spaces in their names to Markdown cells (#8095)
  • Fix build errors by distributing the .yarnrc configuration with the Python package (#8045)
  • Throttle fetch requests in the setting registry's data connector (#7927)
  • Close the gap between lines in notebook output (#7832, #7760)

v2.0.2

April 2020

See the JupyterLab 2.0.2 milestone on GitHub for the full list of pull requests and issues closed.

  • Fix cell execution when recording timing (#8057, #8056)
  • Fix font settings for the editor (#8004, #7910)
  • Avoid redundant checkpoint calls on loading a notebook (#7926, #7889)
  • For developers: make kernel IFuture.done typings more correct by not including undefined (#8032)

v2.0.0

February 2020

Here are some highlights for this release. See the JupyterLab 2.0 milestone on GitHub for the full list of pull requests and issues closed.

User-facing changes

  • New user interface for notebook cell tags (#7407, #7786)
Notebook cell tags in the left sidebar next to an open notebook.
  • File info display when hovering on a file in the file browser (#7485, #7352)
The file browser with a tooltip describing a notebook's info like the name, size, and kernel.
  • Support for searching outputs in notebooks (#7258)
A notebook with multiple cells and the cell output searching in the upper right.

  • Ctrl Shift . and Ctrl Shift , shortcuts move focus to the next and previous tab bar in the main area, respectively (#7673)

  • Shift Home and Shift End shortcuts in a notebook select all cells from the current cell to the top or bottom of a notebook, respectively (#7177)

  • Explicit "No Kernel" button in the kernel selection dialog for new notebooks (#7647)

  • Notebook recordTiming advanced setting to control whether execution timing information is stored in notebook files (#7578)

  • "Select current running or last run cell" command added (requires notebook recordTiming advanced setting to be set to true) (#7551)

  • Codemirror lineWiseCopyCut advanced setting to control the behavior of the copy/cut keyboard shortcuts when there is no selection (#7842)

  • Refreshed the command palette and property inspector sidebar icons and user interfaces (#7577, #7038, #7733, #7732, #7718, #7686)

  • "New File" and "New Markdown File" items in file browser context menu (#7483, #4280)

  • "Download" item in File menu (#7480)

  • "Restart Kernel and Run up to Selected Cell" item in notebook Kernel menu (#7789, #6746)

  • In extension manager, the "enable" button is now only shown for installed extensions (#7482)

  • Dialogs can now be closed by clicking outside of them (#7885, #3784)

  • documentsearch:startWithReplace command to open the document find overlay with replace. There is not currently a default keyboard shortcut for this, but one can be assigned as a custom keyboard shortcut in Advanced Settings. (#7725)

  • # added to the CSV Viewer delimiter options (#7367, #6324)

  • The JSON viewer now only displays structure hints for arrays and empty objects for a more streamlined feel (#7227)

  • Optional platform-aware keyboard shortcut fields linuxKeys, macKeys, and winKeys in keyboard shortcut definitions (#7589)

    {
  command: "application:toggle-mode",
  selector: "body",
  linuxKeys: ["Ctrl Shift M"], // only linux
  macKeys: ["Cmd Shift Z"], // only mac
  winKeys: ["Ctrl Shift B"], // only windows
  keys: ["Accel Shift U"] // default shortcut
}

  • Added options for jupyter lab clean to clean specific parts of the build, such as --extensions, --settings, --static, and --all (#7583, #6734)

  • Removed the vega 4 and vega-lite 2 renderers (vega 5 and vega-lite 4 is included in JupyterLab by default). These legacy renderers may be available via custom extensions (#7650, #7523, #7658)

  • JupyterHub users should use the c.Spawner.default_url = '/lab' setting instead of the deprecated and now removed labhubapp (#7724)

For developers

See extension_migration for help in migrating extensions to JupyterLab 2.0.

Backward incompatible changes

  • Switch from @phosphor to @lumino dependencies. (#7582, #7534, #7763, #7762, #7595)
  • Factor out the settingsregistry and statedb packages from coreutils (#7681, #7615)
  • Rework services architecture (sessions, kernels, terminals). Among these changes, ClientSession is renamed to SessionContext and the IKernelConnection.connectToComm method is replaced with IKernelConnection.createComm and IKernelConnection.hasComm methods. (#7252, #7674, #7820, #7694, #7690, #7682)
  • Upgrade to TypeScript 3.7 (#7522)
  • Remove polling from coreutils in favor for @lumino/polling (#7617)
  • TypeScript strict null checking in core packages (#7657, #7607)
  • Update state database list method to query based on namespace match. (#7742, #7257)
  • Address code todo items and deprecations for 2.0 (#7720, #7724)
  • Update Console panel tracker widgets (#7705, #7726, #7648, #7645)
  • Update contribution guide to require node v12+ (#7479)
  • New API for the Running sidebar extension (#6895, #6876)
  • Clean up handling of icons under unified LabIcon ( #7192 #7700, #7765, #7767, #7800, #7846, #7859, #7864, #7886)

Other changes

  • New property inspector used to display the properties of the currently selected main area widget (#7665, #7664, #7718, #7686)
  • Allow metadata for launcher items (#7654, #7652)
  • Allow default file browser to restore manually. (#7695, #4009)
  • Upgrade bundled yarn to 1.21.1 (#7691, #7692)
  • Make session dialogs configurable (#7618, #7616)
  • Support transient editor configs (#7611, #7295)
  • Optionally force new browser tab (#7603, #7602)
  • Update core dependencies (e.g., codemirror, xterm.js, markdown, fontawesome, etc.) (#7590, #7194, #7326, #6479, #7769)
  • Add storybook to ui-components (#7588, #6799)
  • Add explicit documentation encouraging people to re-use lab components (#7543)
  • Enable TypeScript sourcemaps for debugging locally installed labextensions (#7541)
  • Add UseSignal example to the docs (#7519)
  • Add env prop to kernel options (#7499)
  • Add kernelspec metadata (#7229, #7228)
  • Allow different mimetypes for the clipboard data (#7202)
  • Add password dialog to apputils (#7855)
  • Alias phosphor packages to lumino to allow a deprecation period for phosphor (#7893)
  • Match react version in ui-components peerdependencies (#7794)
  • Fix lint-staged for both win and mac (#7784)
  • Update websocket workaround for node environments (#7780, #6934)
  • Fix handling of linked extensions (#7728, #6738)
  • Fix extension compatibility checks for prereleases and extensions supporting multiple major versions of JupyterLab (#7723, #7241, #7919)
  • Teach update-dependency about more range specifiers and make it adopt the current range for any tag (#7709)
  • Add support for giving a rank to items in the top area (#7278)
  • Apply all options to the initial JupyterLab application instance (#7251)

Bugfixes

  • "Copy Shareable Link" in the file browser context menu now properly works in JupyterHub (#7906)
  • Update Mathjax CDN in the cell and console examples (#7680)
  • Revert ensure-max-old-space now that Node 12+ has better default memory ceilings (#7677, #7675)
  • Resolve race condition between default file browser and tree urls. (#7676, #4009)
  • Fix handling of code editor refresh (#7672, #7671)
  • Start new notebooks in edit mode (#7666, #6731)
  • Use consistent versions of React (#7661, #7655)
  • Add scrollbar styles to nbconvert-css (#7653)
  • Close output views when corresponding notebooks are closed (#7633, #7301)
  • Fixed incorrect white background for new command palette icon (#7609, #7577)
  • Block fetching the settings for a plugin that is disabled (#7147)
  • When timing metadata changes, ensure signal fires (#7576)
  • Prevent memory leaks in Vega renderer (#7564)
  • Handle cell execution cancellation when cell is disposed (#7555, #7554)
  • Fix dropdown option style issue on Windows (#7513)
  • Make sure label is linked to a control when checking for element type (#7458)
  • Refine log console message UX (#7448, #7444, #7443)
  • Fix multicursor backspacing (#7401, #7205)
  • Reset log display and count when non-notebook tab gets activated (#7334, #7325)
  • Fix Safari multiple tabs by working around a Safari bug. (#7316, #6921)
  • Skip custom click behavior on links when the download attribute is set (#7311, #5443)
  • Fix context menu hit test to deal with SVG nodes. (#7242, #7224)
  • Fix overwriting of target attribute of anchors rendered by IPython.display (#7215, #6827)
  • Fix file browser location in tree view (#7155)
  • Stop too many fetch calls in docmanager-extension (#7879, #7874)
  • Ensures that Shift Tab dedent shortcut works correctly in the file editor (#7865)
  • Fix unexpected jump to last search result when using documentsearch (#7835)
  • Fixed refresh issue for html viewer (#7824, #7552)
  • Fix for center-aligned images with IPython.display.image (#7798)
  • Changes to setting editor should trigger application dirty state (#7774, #7757)
  • Move vega from "devdependencies" to "dependencies" (#7699, #7689)
  • Restore default file browser manually. (#7695, #4009)
  • Use default app_dir when app_dir is '' (#7268, #7264)

v1.2.0

October 29, 2019

Here are some highlights for this release. See the JupyterLab 1.2.0 milestone on GitHub for the full list of pull requests and issues closed.

User-facing changes

  • Select cells from the current cell to the top of the notebook with Shift Home, to the bottom of the notebook with Shift End (#7336, #6783)
  • Add a log console extension to display unhandled messages and other activity (#7318, #7319, #7379, #7399, #7406, #7421)
  • Allow the npm max-old-space option to be specified outside of JupyterLab (#7317)
  • Only display node structure in a JSON tree view for arrays and empty objects (#7261)
  • Make much smaller distribution packages by not building JavaScript source maps for releases. (#7150)
  • Add support for pasting cell attachments and dragging attachments from the file browser (#5913, #5744)
  • Add a new registry configuration parameter to override the default yarn repository when building (#7363, #7109, #7249, #7248)

For developers

  • Update the Markdown renderer (marked) to 0.7.0 (#7328)
  • Remove datagrid as a singleton, allowing extensions to use newer versions (#7312)
  • Add metadata to the kernelspec information (#7234)
  • Allow different mimetypes for the clipboard data (#7233)
  • Add inline svg icon support to toolbar buttons (#7232)
  • Add PageConfig functions to query if a plugin is deferred or disabled (#7216)
  • Allow for renderers for nbformat.ierror to be created (#7203, #7193)
  • Refactor fileeditor-extension for modularization (#6904)
  • Add execution timing to cells (#6864, #3320)

Bugfixes

  • Fix the file-browser-path query parameter (#7313)
  • Skip custom click behavior on links when the download attribute is set (#7323)
  • Fix opening multiple browser tabs in Safari (#7322)
  • Fix context menus on SVG icons (#7263)
  • Fix overwriting of target attribute of anchors rendered by IPython.display (#7231)
  • Fix multi-cursor backspacing (#7205, #7401, #7413)
  • Fix mult-cursor cell splitting (#7207, #7417, #7419)

v1.1.0

August 28, 2019

Here are some highlights of what is in this release. See the JupyterLab 1.1.0 milestone on GitHub for the full list of pull requests and issues closed.

User-facing changes

  • jupyter lab build now has a --minimize=False option to build without minimization to conserve memory and time (#6907)
  • Fix workspace reset functionality (#7106, #7105)
  • Restore behavior of the "raises-exception" cell tag (#7020, #7015)
  • Add settings to override theme font sizes (#6926)
  • Accept query parameter to optionally change file browser location (#6875)
  • Pressing escape in the console should switch out of edit mode (#6822)
  • Fix file browser downloads in Google Chrome (#6686)
  • Make it possible to override the default widgets to view a file (#6813, #4048)
  • Support installing multiple versions of the same extension (#6857)
  • Support JupyterHub server name for JupyterHub 1.0 (#6931)
  • Add docs to help users diagnose issues before creating them (#6971)
  • The JupyterLab conda-forge package is now a noarch package. If you are using JupyterLab with notebook version 5.2 or earlier, you may need to manually enable the JupyterLab server extension. See the issue for more details (#7042)

For developers

  • Expose install_kernel for tests so that outside projects can better use the testing framework (#7089)
  • Fix comm_info_request content to conform to the Jupyter message specification in a backwards-compatible way (#6949, #6947)
  • Add yarn package resolution to build to constrain core package versions to patch semver ranges (#6938)
  • Make handling comm messages optional in a kernel connection. (#6929)
  • Expose icon svg to theme css (#6034, #7027)
  • Expose convenience functions for open dialogs (#6366, #6365)
  • Add debug messages to possible kernel messages (#6704)
  • Add server side coreconfig object (#6991)

Bug fixes

  • Handle errors that occur during kernel selection (#7094)
  • Fix escaping issues for page config and other template variables (#7016, #7024, #7061, #7058, #6858)
  • Require jinja2 2.10+ to fix escaping issues (#7055, #7053)
  • Increase the search debounce from 100ms to 500ms to increase incremental search responsiveness in large documents (#7034)
  • Fix vega downloads and download urls in general (#7022, #7017, #7098, #7047)
  • Do not complain in the build about duplicate or optional packages (#7013)
  • Fix contextual help layout for R help (#6933, #6935)

v1.0.0

June 28, 2019

See the JupyterLab 1.0.0 milestone on GitHub for the full list of pull requests and issues closed in 1.0.0, and other 1.0.x milestones for bugs fixed in patch releases.

Find and Replace

A notebook with multiple cells and the find and replace interface in the upper right.

We have added first class support for find and replace across JupyterLab. It is currently supported in notebooks and text files and is extensible for other widgets who wish to support it. (#6350, #6322, #6301, #6282, #6256, #6241, #6237, #6159, #6081, #6155, #6094, #6024, #5937, #5795, #1074)

Status Bar

A screenshot of the updated JupyterLab status bar.

We have integrated the JupyterLab Status Bar package package into the core distribution. Extensions can add their own status to it as well (#5577, #5525 #5990, #5982, #5514, #5508, #5352).

JupyterHub Integration

  • We now include the JupyterHub extension in core JupyterLab, so you no longer need to install @jupyterlab/hub-extension. (#6451, #6428)
  • JupyterLab now has a File > Logout menu entry when running with JupyterHub (#6087, #5966)

Printing

We now have a printing system that allows extensions to customize how documents and activities are printed. (#5850, #1314)

Other User Facing Changes

  • The launcher displays longer kernel names and supports keyboard navigation (#6587)
  • Notebook outputs without any valid MimeType renderers will not be displayed, instead of displaying an error (#6559, #6216)
  • Add tooltip to file browser root breadcrumb icon showing the server root, if it is available (#6552)
  • Downloading a file will no longer open a new browser window (#6546)
  • Rename the help "Inspector" to "Contextual Help" and move it to the "Help" menu (#6493, #6488, #6678, #6671)
  • Update many of the icons to make them more consistent (#6672, #6618, #6664, #6621)
  • Update the settings UI to remove the table view (#6654, #6622, #6653, #6623, #6646, #6642)
  • Replace FAQ Extension with link to JupyterLab documentation (#6628, #6608, #6625, #6610)
  • Change the default keyboard shortcut for closing a tab to be Alt+w instead of Cmd/Ctrl+w to avoid conflicts with operating systems. (#6486, #6357)
  • Show help text in Inspector window to describe you should select a function (#6476)
  • Fixes SVG rendering (#6469, #6295)
  • Add support for dropping a tab in the tab bar area. (#6454, #5406)
  • Switch some default shortcuts to use Accel instead of Ctrl so they are more natural for Mac users (#6447, #5023)
  • Add ability to tell between hover and selected command palette items (#6407, #279)
  • Hide the "Last Modified" column when the file browser is narrow (#6406, #6093)
  • Support copy/paste in terminal and Mac OS using Ctrl+C and Ctrl+V (#6391, #6385, #1146)
  • Support scrolling in running kernels panel (#6383, #6371)
  • Adds ability to "Merge Selected Cells" in the context menu in the notebook (#6375, #6318)
  • Turn On Accessibility In Xterm.js to make it more compatible for screen readers (#6359)
  • When selecting cells using the keyboard shortcuts, we now skip collapsed cells (#6356, #3233)
  • Supporting opening .geojson files in JSON viewer (#6349)
  • Performance fixes for text-based progress bars (#6304, #4202)
  • Add support for rendering Vega 5 and Vega Lite 3 while keeping the existing Vega 4 and Vega Lite 2 renderers (#6294, #6133, #6128, #6689, #6685, #6684, #6675, #6591, #6572)
  • Drag and drop console cells into a notebook or text editor (#5585, #4847)
  • Drag and drop notebook cells into a console or text editor (#5571, #3732)
  • The extension manager search now sorts extensions by the score assigned to them by NPM instead of alphabetically (#5649)
  • Notify the user when a kernel is automatically restarted, for example, if crashes from an out of memory error (#6246, #4273)
  • Expose the extension manager in a command and menu item (#6200)
  • Add command to render all Markdown cells (#6029, #6017)
  • Supports using shift to select text in output area (#6015, #4800)
  • Output areas that opened in new views are restored properly now on reload (#5981, #5976)
  • Add support for managing notebook metadata under a new "Advanced Tools" section in the cell tools area. The cell and notebook metadata now always reflect the current state of the notebook (#5968, #5200)
  • Inherit terminal theme from core theme (#5964)
  • Adds a built-in HTML viewer so that you can view HTML files (#5962, #5855, #2369)
  • New workspaces are now automatically generated when you create a new window with the same workspace name. (#5950, #5854, #5830, #5214)
  • We now add a hint to the context menu to describe how you can access the native browser menu (#5940, #4023)
  • The tabs on the left panel have changed to make them more understandable (#5920, #5269)
  • Start a new terminal when the page is refreshed and the old terminal has died (#5917)
  • Add a command to open the main menus, which can be assigned to a keyboard shortcut to open and navigate menus without a mouse (#5910, #3074)
  • The contextual help now updates based on changes in the cursor from the mouse instead of just from the keyboard (#5906, #5899)
  • The launcher now updates when the kernels change on the server (#5904, #5676)
  • Retain cell auto scroll behavior even when a cell output is cleared (#5817, #4028)
  • If you link to a relative path that is not a file in a markdown cell, this will now be preserved instead of changing it to a file URL (#5814)
  • Adds the ability to link to a certain row in a CSV file and have the viewer open to that row (#5727, #5720)
  • We have improved the performance of switching to a large notebook (#5700, #4292, #2639)
  • The vdom extension now supports event handling, so that you can have kernel code run in response to user interaction with the UI (#5670)
  • Adds the ability to run "Run All Code" and "Restart Kernel and Run All Code" in code and markdown files (#5641, #5579)
  • We now remember what line ending a text file has when loading it, so that files with CRLF line endings will properly be saved with the same endings (#5622, #4464, #3901, #3706)
  • Fixes rendering of SVG elements in HTML MimeType output (#5610, #5610, #5589)
  • Allow copying files by holding down Ctrl when dragging them in the file browser (#5584, #3235)
  • Switch the hover modified time in the file browser to use the local format (#5567)
  • We have added a default keyboard shortcut of Ctrl Shift Q for closing and cleaning up a file (#5534, #4390)
  • Adds the ability to find and go to a certain line in the CSV viewer (#5523)
  • Add the ability to create new text and markdown files from the launcher and command palette (#5512, #5511)
  • A "New Folder" option has been added to the file browser context menu (#5447)
  • The ANSI colors are now the same as those in the classic notebook (#5336, #3773)
  • Send complete statements instead of current lines when stepping through code in a cell (#6515, #6063)
  • Description list styles (dl, dt, dd) are improved to be consistent with the nteract project (#5682, #2399)

Settings

  • The settings system has been rewritten (#5470, #5298) and now uses json5 as the syntax, which supports comments and other features for better human readability (#6343, #6199).
  • The keyboard shortcut system has been rewritten and now displays a list of system commands in the settings comments (#5812, #5562).

There are new settings for many following items, including:

Command Line Changes

  • Installing extensions will be quieter and adds a --debug to extension installing (#6567, #6499, #5986)
  • We now support running JupyterLab when its application directory is a symlink (#6240, #6166)
  • Add --all flag to labextension uninstall to remove all extensions (#6058, #6006)
  • Adds the ability to override the base URLs from the config (#5518, #5503)
  • Updates to workspaces CLI command (#6473, #5977, #6276, #6234, #6210, #5975, #5695, #5694)

Extension Development Changes

  • We have rewritten how extensions provide keyboard shortcuts and interact with the settings system. If you previously defined keyboard shortcuts or used the settings mechanism, you will need to update your extension (#5470, #5298)
  • We have renamed the plugin type from JupyterLabPlugin to JupyterFrontEndPlugin. The application arg is also renamed from JupyterLab to JupyterFrontEnd and some its functionality has been moved to a separate ILabShell plugin (#5845, #5919)
  • The lab shell addToMainArea, addToLeftArea, addToTopArea, addToRightArea, and addToBottomArea functions have been replaced with a single add() function that takes the area as an argument. Replace addToMainArea(widget, options) with add(widget, 'main', options), etc. (#5845)
  • Rename pageUrl to appUrl in the server connection (#6509, #6508, #6585, #6584)
  • MainAreaWidget instances now forward update requests to their content (#6586, #6571)
  • The theme data attributes are renamed and moved to the document body element. If you are relying on these attributes in CSS to conditionally style based on the theme, you should update their names. For example data-theme-light is now data-jp-theme-light. (#6566, #6554)
  • Extensions which require CSS should no longer import their CSS files into their Javascript files. Instead, they should specify a root CSS file in the style attribute in their package.json, and JupyterLab will automatically import that CSS file. (#6533, #6530, #6395, #6390)
  • Dialog.prompt has been replaced by a number of type-specific dialogs such as InputDialog.getString, InputDialog.getBoolean, etc. (#6522, #6378, #6327, #6326)
  • When a RenderMime widget is re-rendered, the default behavior is to remove any existing content in the DOM. This can be overridden if needed. (#6513, #6505, #6497)
  • We have updated our internal TypeScript version to 3.5.1 and our compile target to ES2017. Extensions may need to upgrade their TypeScript version and target as well. (#6440, #6224)
  • We have updated the typings for some of the Kernel messages so that they better match the spec. (#6433)
  • A connectionFailure signal has been added to some of the manager classes, which can be used to detect when a connection to the server is lost (#6399, #6176, #3324)
  • Add rate limiting and polling utilities to coreutils to use for throttling and debouncing of API requests (#6345, #6346, #6401, #6305, #6157, #6192, #6186, #6141, #3929, #6141, #3929, #6186, #6192, #6401 ,#6305, #6157)
  • Require session when instantiating terminal widget (#6339, #5061)
  • Provides a signal to see what items are opened in a directory listing (#6270, #6269)
  • Ads the ability to add widget above the main work area to a top header area (#5936)
  • Renames contextMenuFirst to contextMenuHitTest in the JupyterFrontEnd (#5932)
  • Removes the initialCommand arg from the terminal creation command. (#5916)
  • Adds --jp-code-cursor-width0, --jp-code-cursor-width1, and --jp-code-cursor-width2 variables to the themes to support changing the cursor width if you change the font size (#5898)
  • Adds the ability to insert a new item to the toolbar before or after another item (#5896, #5894)
  • Adds the ability for extensions to register new CodeMirror modes (#5829)
  • We have removed the JUPYTERLAB_xxx_LOADER Webpack loaders, instead you should use the loader directly in the URL as Webpack supports it (#5709, #4406)
  • Adds the ability to handle fragments for document widgets (#5630, #5599)
  • We have added a @jupyterlab/ui-components package that contains reusable React components to be used internally and in extensions. Feel free to use this to create extension UIs with consistent styles (#5538)
  • The showErrorMessage function now lets you customize the buttons it uses (#5513)
  • We now provide helpers for using React components within JupyterLab. If you were previously using ReactElementWidget you should switch to using ReactWidget. (#5479, #5766, #6595, #6595)
  • The share link command has been moved to its own extension so that it can be overridden (#5460, #5388)
  • Creating a new services session now requires passing a kernel model instead of a kernel instance (#6503, #6142)
  • We upgraded the Webpack raw file loader. The new version of the raw loader exports ES2015 modules, so this may require changes in extensions that import files using the raw loader. For example, if you did require('myfile.md') to get the content of myfile.md as a string, you now should import it using ES2015 import syntax, or use require(\'myfile.md\').default.
  • Widget factories now can support custom cloning behavior from an optional source widget (#6060, #6044)
  • We have renamed the type InstanceTracker to WidgetTracker (#6569).
  • In order to add widgets to the main area (e.g. as in the old XKCD extension tutorial), the correct syntax is now app.shell.add(widget) or app.shell.add(widget, 'main'), see here.

v0.35.0

October 3, 2018

See the JupyterLab 0.35.0 milestone on GitHub for the full list of pull requests and issues closed.

Features

  • A notebook cell can now be readonly, reflecting its enabled metadata. (#5401, #1312)
  • Add "Go To Line" in the Edit menu for text editors. (#5377)
  • Sidebar panels can now be switched between left and right sidebars. Right-click on a sidebar tab to move it to the other sidebar. (#5347, #5054, #3707)
  • Make the sidebar a bit narrower, and make the minimum width adjustable from a theme. (#5245)
  • Populate the File, Export Notebook As... submenu from the server nbconvert capabilities. (#5217)
  • Server contents managers can now tell JupyterLab to open files as notebooks. For example, several custom contents managers save and open notebooks as Markdown files. (#5247, #4924)
  • Add a command-line interface for managing workspaces. (#5166)
  • Allow safe inline CSS styles in Markdown. (#5012, #1812)
  • Add Quit to File menu when appropriate. (#5226, #5252, #5246, #5280)
  • Rework extension manager user experience. (#5147, #5042)

Dark theme

  • Show a dark splash screen when using a dark theme. (#5339, #5338, #5403)
  • Fix code completion menu for a dark theme. (#5364, #5349)
  • Style CSV viewer for a dark theme. (#5304, #3456)
  • Make Matplotlib figures legible in a dark theme. (#5232)
  • Fix notebook cell dropdown legibility in a dark theme. (#5168)

Bug fixes

  • Various save options in the file menu and toolbar are now disabled when a file is not writable. (#5376, #5391)
  • Kernel selector dialog no longer cuts off kernel names. (#5260, #5181)
  • Fix focus issues with the toolbar. (#5344, #5324, #2995, #5328)
  • Fix toolbar button enabled/disabled status. (#5278)
  • Table alignment is now respected in Markdown. (#5301, #3180)
  • Fix syntax highlighting for Markdown lists. (#5297, #2741)
  • Use the current filebrowser instead of the default one for various commands. (#5390)
  • Fix escaping in link handling to conform to Markdown syntax. This means that spaces in link references now need to be encoded as %20. (#5383, #5340, #5153)

Build system

  • Use Typescript 3.1. (#5360)
  • Use Lerna 3.2.1. (#5262)
  • Node >=6.11.5 is now required. (#5227)
  • Pin vega-embed version to 3.18.2. (#5342)
  • Use Jest for services tests. (#5251, #5282)
  • Make it easier for third party extensions to use the JupyterLab test app and testing utilities. (#5415)
  • Fix jupyter lab clean on Windows. (#5400, #5397)
  • Fix jupyter lab build on NFS. (#5237, #5233)
  • Build wheels for Python 3 only. (#5287)
  • Migrate to using jupyterlab_server instead of jupyterlab_launcher and fix the app example. (#5316)
  • Move Mathjax 2 typesetter to a library package. (#5259, #5257)

For Developers

  • Default toolbar buttons can be overridden, and mime renderers can now specify toolbar buttons. (#5398, #5370, #5363)
  • A JupyterLab application instance can now be given a document registry, service manager, and command linker. (#5291)

v0.34.0

August 18, 2018

See the JupyterLab 0.34.0 milestone on GitHub for the full list of pull requests and issues closed.

Key Features

  • Notebooks, consoles, and text files now have access to completions for local tokens.
  • Python 3.5+ is now required to use JupyterLab. Python 2 kernels can still be run within JupyterLab.
  • Added the pipe (|) character as a CSV delimiter option.
  • Added "Open From Path..."" to top level File menu.
  • Added "Copy Download Link" to context menu for files.

Changes for Developers

  • Notebooks, consoles, and text files now have access to completions for local tokens. If a text file has a running kernel associated with its path (as happens with an attached console), it also gets completions and tooltips from that kernel. (#5049)

  • The FileBrowser widget has a new constructor option refreshInterval, allowing the creator to customize how often the widget polls the storage backend. This can be useful to prevent rate-limiting in certain contexts. (#5048)

  • The application shell now gets a pair of CSS data attributes indicating the current theme, and whether it is light or dark. Extension authors can write CSS rules targeting these to have their extension UI elements respond to the application theme. For instance, to write a rule targeting whether the theme is overall light or dark, you can use

    [data-theme-light='true'] your-ui-class {
  background-color: white;
}
[data-theme-light='false'] your-ui-class {
  background-color: black;
}

    The theme name can also be targeted by writing CSS rules for data-theme-name. (#5078)

  • The IThemeManager interface now exposes a signal for themeChanged, allowing extension authors to react to changes in the theme. Theme extensions must also provide a new boolean property isLight, declaring whether they are broadly light colored. This data allows third-party extensions to react better to the active application theme. (#5078)

  • Added a patch to update the uploads for each FileBrowserModel instantly whenever a file upload errors. Previously, the upload that erred was only being removed from uploads upon an update. This would allow the status bar component and other extensions that use the FileBrowserModel to be more precise. (#5077)

  • Cell IDs are now passed in the shell message as part of the cell metadata when a cell is executed. This helps in developing reactive kernels. (#5033)

  • The IDs of all deleted cells since the last run cell are now passed as part of the cell metadata on execution. The IDs of deleted cells since the last run cell are stored as deletedCells in NotebookModel. This helps in developing reactive kernels. (#5037)

  • The ToolbarButton in apputils has been refactored with an API change and now uses a React component ToolbarButtonComponent to render its children. It is now a div with a single button child, which in turn as two span elements for an icon and text label. Extensions that were using the className options should rename it as iconClassName. The className options still exists, but it used as the CSS class on the button element itself. The API changes were done to accommodate styling changes to the button. (#5117)

  • The Toolbar.createFromCommand function has been replaced by a dedicated ToolbarButton subclass called CommandToolbarButton, that wraps a similarly named React component. (#5117)

  • The design and styling of the right and left sidebars tabs has been improved to address #5054. We are now using icons to render tabs for the extensions we ship with JupyterLab and extension authors are encouraged to do the same (text labels still work). Icon based tabs can be used by removing widget.caption and adding widget.iconClass = '<youriconclass> jp-SideBar-tabIcon';. (#5117)

  • The style of buttons in JupyterLab has been updated to a borderless design. (#5117)

  • A new series of helper CSS classes for styling SVG-based icons at different sizes has been added: jp-Icon, jp-Icon-16, jp-Icon-18, jp-Icon-20.

  • The rank of the default sidebar widget has been updated. The main change is giving the extension manager a rank of 1000 so that it appears at the end of the default items.

  • Python 3.5+ is now required to use JupyterLab. Python 2 kernels can still be run within JupyterLab. (#5119)

  • JupyterLab now uses yarn 1.9.4 (aliased as jlpm), which now allows uses to use Node 10+. (#5121)

  • Clean up handling of baseUrl and wsURL for PageConfig and ServerConnection. (#5111)

Other Changes

  • Added the pipe (|) character as a CSV delimiter option. (#5112)
  • Added Open From Path... to top level File menu. (#5108)
  • Added a saveState signal to the document context object. (#5096)
  • Added "Copy Download Link" to context menu for files. (#5089)
  • Extensions marked as deprecated are no longer shown in the extension manager. (#5058)
  • Remove In and Out text from cell prompts. Shrunk the prompt width from 90px to 64px. In the light theme, set the prompt colors of executed console cells to active prompt colors and reduced their opacity to 0.5. In the dark theme, set the prompt colors of executed console cells to active prompt colors and set their opacity to 1. (#5097 and #5130)

Bug Fixes

  • Fixed a bug in the rendering of the "New Notebook" item of the command palette. (#5079)
  • We only create the extension manager widget if it is enabled. This prevents unnecessary network requests to npmjs.com. (#5075)
  • The running panel now shows the running sessions at startup. (#5118)
  • Double clicking a file in the file browser always opens it rather than sometimes selecting it for a rename. (#5101)

v0.33.0

July 26, 2018

See the JupyterLab 0.33.0 milestone on GitHub for the full list of pull requests and issues closed.

Key Features:

No longer in beta

In JupyterLab 0.33, we removed the "Beta" label to better signal that JupyterLab is ready for users to use on a daily basis. The extension developer API is still being stabilized. See the release blog post for details. (#4898, #4920)

Workspaces

We added new workspace support, which enables you to have multiple saved layouts, including in different browser windows. See the workspace documentation for more details. (#4502, #4708, #4088, #4041 #3673, #4780)

  • "Activate Previously Used Tab" added to the Tab menu (Ctrl/Cmd Shift ') to toggle between the previously active tabs in the main area. (#4296)
  • "Reload From Disk" added to the File menu to reload an open file from the state saved on disk. (#4615)
  • "Save Notebook with View State" added to the File menu to persist the notebook collapsed and scrolled cell state. We now read the collapsed, scrolled, jupyter.source_hidden and jupyter.outputs_hidden notebook cell metadata when opening. collapsed and jupyter.outputs_hidden are redundant and the initial collapsed state is the union of both of them. When the state is persisted, if an output is collapsed, both will be written with the value true, and if it is not, both will not be written. (#3981)
  • "Increase/Decrease Font Size" added to the text editor settings menu. (#4811)
  • "Show in File Browser" added to a document tab's context menu. (#4500)
  • "Open in New Browser Tab" added to the file browser context menu. (#4315)
  • "Copy Path" added to file browser context menu to copy the document's path to the clipboard. (#4582)
  • "Show Left Area" has been renamed to "Show Left Sidebar" for consistency (same for right sidebar). (#3818)

Keyboard shortcuts

  • "Save As..." given the keyboard shortcut Ctrl/Cmd Shift S. (#4560)
  • "Run All Cells" given the keyboard shortcut Ctrl/Cmd Shift Enter. (#4558)
  • "notebook:change-to-cell-heading-X" keyboard shortcuts (and commands) renamed to "notebook:change-cell-to-heading-X" for X=1...6. This fixes the notebook command-mode keyboard shortcuts for changing headings. (#4430)
  • The console execute shortcut can now be set to either Enter or Shift Enter as a Console setting. (#4054)

Command palette items

  • "Notebook" added to the command palette to open a new notebook. (#4812)

  • "Run Selected Text or Current Line in Console" added to the command palette to run the selected text or current line from a notebook in a console. A default keyboard shortcut for this command is not yet provided, but can be added by users with the notebook:run-in-console command. To add a keyboard shortcut Ctrl G for this command, use the "Settings" | "Advanced Settings Editor" menu item to open the "Keyboard Shortcuts" advanced settings, and add the following JSON in the shortcut JSON object in the User Overrides pane (adjust the actual keyboard shortcut if you wish). (#3453, #4206, #4330)

    {
  "command": "notebook:run-in-console",
  "keys": ["Ctrl G"],
  "selector": ".jp-Notebook.jp-mod-editMode"
}

  • The command palette now renders labels, toggled state, and keyboard shortcuts in a more consistent and correct way. (#4533, #4510)

Settings

  • "fontFamily", "fontSize", and "lineHeight" settings added to the text editor advanced settings. (#4673)
  • Solarized dark and light text editor themes from CodeMirror. (#4445)

Larger file uploads

  • Support for larger file uploads (>15MB) when using Jupyter notebook server version >= 5.1. (#4224)

Extension management and installation

  • New extension manager for installing JupyterLab extensions from npm within the JupyterLab UI. You can enable this from the Advanced Settings interface. (#4682, #4925)
  • Please note that to install extensions in JupyterLab, you must use NodeJS version 9 or earlier (i.e., not NodeJS version 10). We will upgrade yarn, with NodeJS version 10 support, when a bug in yarn is fixed. (#4804)

Interface changes

  • Wider tabs in the main working area to show longer filenames. (#4801)
  • Initial kernel selection for a notebook or console can no longer be canceled: the user must select a kernel. (#4596)
  • Consoles now do not display output from other clients by default. A new "Show All Kernel Activity" console context menu item has been added to show all activity from a kernel in the console. (#4503)
  • The favicon now shows the busy status of the kernels in JupyterLab. (#4361, #3957, #4966)

Renderers

  • JupyterLab now ships with a Vega4 renderer by default (upgraded from Vega3). (#4806)
  • The HTML sanitizer now allows some extra tags in rendered HTML, including kbd, sup, and sub. (#4618)
  • JupyterLab now recognizes the .tsv file extension as tab-separated files. (#4684)
  • Javascript execution in notebook cells has been re-enabled. (#4515)

Changes for developers

  • A new signal for observing application dirty status state changes. (#4840)
  • A new signal for observing notebook cell execution. (#4740, #4744)
  • A new anyMessage signal for observing any message a kernel sends or receives. (#4437)
  • A generic way for different widgets to register a "Save with extras" command that appears in the File menu under save. (#3981)
  • A new API for removing groups from a JupyterLab menu. addGroup now returns an IDisposable which can be used to remove the group. removeGroup has been removed. (#4890)
  • The Launcher now uses commands from the application CommandRegistry to launch new activities. Extension authors that add items to the launcher will need to update them to use commands. (#4757)
  • There is now a top-level addToBottomArea function in the application, allowing extension authors to add bottom panel items like status bars. (#4752)
  • Rendermime extensions can now indicate that they are the default rendered widget factory for a file-type. For instance, the default widget for a markdown file is a text editor, but the default rendered widget is the markdown viewer. (#4692)
  • Add new workspace REST endpoints to jupyterlab_server and make them available in @jupyterlab/services. (#4841)
  • Documents created with a mimerenderer extension can now be accessed using an IInstanceTracker which tracks them. Include the token IMimeDocumentTracker in your plugin to access this. The IInstanceTracker interface has also gained convenience functions find and filter to simplify iterating over instances. (#4762)
  • RenderMime render errors are now displayed to the user. (#4465)
  • getNotebookVersion is added to the PageConfig object. (#4224)
  • The session kernelChanged signal now contains both the old kernel and the new kernel to make it easy to unregister things from the old kernel. (#4834)
  • The connectTo functions for connecting to kernels and sessions are now synchronous (returning a connection immediately rather than a promise). The DefaultSession clone and update methods are also synchronous now. (#4725)
  • Kernel message processing is now asynchronous, which guarantees the order of processing even if a handler is asynchronous. If a kernel message handler returns a promise, kernel message processing is paused until the promise resolves. The kernel's anyMessage signal is emitted synchronously when a message is received before asynchronous message handling, and the iopubMessage and unhandledMessage signals are emitted during asynchronous message handling. These changes mean that the comm onMsg and onClose handlers and the kernel future onReply, onIOPub, and onStdin handlers, as well as the comm target and message hook handlers, may be asynchronous and return promises. (#4697)
  • Kernel comm targets and message hooks now are unregistered with removeCommTarget and removeMessageHook, instead of using disposables. The corresponding registerCommTarget and registerMessageHook functions now return nothing. (#4697)
  • The kernel connectToComm function is synchronous, and now returns the comm rather than a promise to the comm. (#4697)
  • The KernelFutureHandler class expectShell constructor argument is renamed to expectReply. (#4697)
  • The kernel future done returned promise now resolves to undefined if there is no reply message. (#4697)
  • The IDisplayDataMsg is updated to have the optional transient key, and a new IUpdateDisplayDataMsg type was added for update display messages. (#4697)
  • The uuid function from @jupyterlab/coreutils is removed. Instead import UUID from @phosphor/coreutils and use UUID.uuid4() . (#4604)
  • Main area widgets like the launcher and console inherit from a common MainAreaWidget class which provides a content area (.content) and a toolbar (.toolbar), consistent focus handling and activation behavior, and a spinner displayed until the given reveal promise is resolved. Document widgets, like the notebook and text editor and other documents opened from the document manager, implement the IDocumentWidget interface (instead of DocumentRegistry.IReadyWidget), which builds on MainAreaWidget and adds a .context attribute for the document context and makes dirty handling consistent. Extension authors may consider inheriting from the MainAreaWidget or DocumentWidget class for consistency. Several effects from these changes are noted below. (#3499, #4453)
    • The notebook panel .notebook attribute is renamed to .content.
    • The text editor is now the .content of a DocumentWidget, so the top-level editor widget has a toolbar and the editor itself is widget.content.editor rather than just widget.editor.
    • Mime documents use a MimeContent widget embedded inside of a DocumentWidget now.
    • Main area widgets and document widgets now have a revealed promise which resolves when the widget has been revealed (i.e., the spinner has been removed). This should be used instead of the ready promise.

Changes in the JupyterLab code infrastructure include:

  • The JupyterLab TypeScript codebase is now compiled to ES2015 (ES6) using TypeScript 2.9. We also turned on the TypeScript esModuleInterop flag to enable more natural imports from non-es2015 JavaScript modules. With the update to ES2015 output, code generated from async/await syntax became much more manageable, so we have started to use async/await liberally throughout the codebase, especially in tests. Because we use Typedoc for API documentation, we still use syntax compatible with TypeScript 2.7 where Typedoc is used. Extension authors may have some minor compatibility updates to make. If you are writing an extension in TypeScript, we recommend updating to TypeScript 2.9 and targeting ES2015 output as well. (#4462, #4675, #4714, #4797)
  • The JupyterLab codebase is now formatted using Prettier. By default the development environment installs a pre-commit hook that formats your staged changes. (#4090)
  • Updated build infrastructure using webpack 4 and better typing. (#4702, #4698)
  • Upgraded yarn to version 1.6. Please note that you must use NodeJS version 9 or earlier with JupyterLab (i.e., not NodeJS version 10). We will upgrade yarn, with NodeJS version 10 support, when a bug in yarn is fixed. (#4804)
  • Various process utilities were moved to jupyterlab_server. (#4696)

Other fixes

  • Fixed a rendering bug with the Launcher in single-document mode. (#4805)
  • Fixed a bug where the native context menu could not be triggered in a notebook cell in Chrome. (#4720)
  • Fixed a bug where the cursor would not show up in the dark theme. (#4699)
  • Fixed a bug preventing relative links from working correctly in alternate IDrives. (#4613)
  • Fixed a bug breaking the image viewer upon saving the image. (#4602)
  • Fixed the font size for code blocks in notebook Markdown headers. (#4617)
  • Prevented a memory leak when repeatedly rendering a Vega chart. (#4904)
  • Support dropped terminal connection re-connecting. (#4763, #4802)
  • Use require.ensure in vega4-extension to lazily load vega-embed and its dependencies on first render. (#4706)
  • Relative links to documents that include anchor tags will now correctly scroll the document to the right place. (#4692)
  • Fix default settings JSON in setting editor. (#4591, #4595)
  • Fix setting editor pane layout's stretch factor. (#2971, #4772)
  • Programmatically set settings are now output with nicer formatting. (#4870)
  • Fixed a bug in displaying one-line CSV files. (#4795, #4796)
  • Fixed a bug where JSON arrays in rich outputs were collapsed into strings. (#4480)

Beta 2 (v0.32.0)

Apr 16, 2018

This is the second in the JupyterLab Beta series of releases. It contains many enhancements, bugfixes, and refinements, including:

  • Better handling of a corrupted or invalid state database. (#3619, #3622, #3687, #4114).
  • Fixing file dirty status indicator. (#3652).
  • New option for whether to autosave documents. (#3734).
  • More commands in the notebook context menu. (#3770, #3909)
  • Defensively checking for completion metadata from kernels. (#3888)
  • New "Shutdown all" button in the Running panel. (#3764)
  • Performance improvements wherein non-focused documents poll the server less. (#3931)
  • Changing the keyboard shortcut for singled-document-mode to something less easy to trigger. (#3889)
  • Performance improvements for rendering text streams, especially around progress bars. (#4045).
  • Canceling a "Restart Kernel" now functions correctly. (#3703).
  • Defer loading file contents until after the application has been restored. (#4087).
  • Ability to rotate, flip, and invert images in the image viewer. (#4000)
  • Major performance improvements for large CSV viewing. (#3997).
  • Always show the context menu in the file browser, even for an empty directory. (#4264).
  • Handle asynchronous comm messages in the services library more correctly (Note: this means @jupyterlab/services is now at version 2.0!) ([#4115](https://github.com/jupyterlab/jupyterlab/pull/4115)).
  • Display the kernel banner in the console when a kernel is restarted to mark the restart ([#3663](https://github.com/jupyterlab/jupyterlab/pull/3663)).
  • Many tweaks to the UI, as well as better error handling.

Beta 1 (v0.31.0)

Jan 11, 2018

v0.30.0

Dec 05, 2017

v0.29.2

Nov 17, 2017

Bug fix for file browser right click handling. https://github.com/jupyterlab/jupyterlab/issues/3019

v0.29.0

Nov 09, 2017

  • Create new view of cell in cell context menu. #3159
  • New Renderers for VDOM and JSON mime types and files. #3157
  • Switch to React for our VDOM implementation. Affects the VDomRenderer class. #3133
  • Standalone Cell Example. #3155

v0.28.0

Oct 16, 2017

This release generally focuses on developer and extension author enhancements and general bug fixes.

  • Plugin id and schema file conventions change. https://github.com/jupyterlab/jupyterlab/pull/2936.
  • Theme authoring conventions change. #3061
  • Enhancements to enabling and disabling of extensions. #3078
  • Mime extensions API change (name -> id and new naming convention). #3078
  • Added a jupyter lab --watch mode for extension authors. #3077
  • New comprehensive extension authoring tutorial. #2921
  • Added the ability to use an alternate LaTeX renderer. #2974
  • Numerous bug fixes and style enhancements.

v0.27.0

Aug 23, 2017

v0.26.0

Jul 21, 2017

v0.25.0

Jul 07, 2017

v0.24.0

Jun 16, 2017

  • Overhaul of the launcher. #2380
  • Initial implementation of client-side settings system. #2157
  • Updatable outputs. #2439
  • Use new Phosphor Datagrid for CSV viewer. #2433
  • Added ability to enable/disable extensions without rebuilding. #2409
  • Added language and tab settings for the file viewer. #2406
  • Improvements to real time collaboration experience. #2387 #2333
  • Compatibility checking for extensions. #2410
  • Numerous bug fixes and style improvements.

v0.23.0

Jun 02, 2017

v0.22.0

May 18, 2017

v0.20.0

Apr 21, 2017

Release Notes:

Numerous bug fixes and improvements.

v0.19.0

Apr 04, 2017

Mainly backend-focused release with compatibility with Phosphor 1.0 and a big refactor of session handling (the ClientSession class) that provides a simpler object for classes like notebooks, consoles, inspectors, etc. to use to communicate with the API. Also includes improvements to the development workflow of JupyterLab itself after the big split.

https://github.com/jupyterlab/jupyterlab/pull/1984 https://github.com/jupyterlab/jupyterlab/pull/1927

v0.18.0

Mar 21, 2017

v0.17.0

Mar 01, 2017

v0.16.0

Feb 09, 2017

  • Adds a Cell Tools sidebar that allows you to edit notebook cell metadata. #1586.
  • Adds keyboard shortcuts to switch between tabs (Cmd/Ctrl LeftArrow and Cmd/Ctrl RightArrow). #1647
  • Upgrades to xterm.js 2.3. #1664
  • Fixes a bug in application config, but lab extensions will need to be re-enabled. #1607
  • Numerous other bug fixes and style improvements.