Solara Changelog

Version 1.39.0

• Feature: Add option to start Solara server on a random unused port (using --port=0). #762
• Bug Fix: Extension checking for e.g. ipyleaflet now work correctly on Amazon SageMaker Studio Lab. #757
• Bug Fix: Various solara components should now work correctly in notebooks viewed on vscode, colab and voila. #763

Version 1.38.0

• Feature: We detect and warn when there are possible reverse proxy or uvicorn misconfigurations. #745
• Bug Fix: Auth redirect did not respect SOLARA_BASE_URL. #747
• Bug Fix: Support for websockets >= 13.0 and large cookies. #751
• Bug Fix: Windows support was broken from version 1.35.0 to 1.37.2. This went undetected due to a CI configuration error. #712 #739

Version 1.37.2

• Bug Fix: If matplotlib was imported before solara, we did not set the backend, now we do. #741

Version 1.37.1

• Bug Fix: The newly introduced hooks validator could emit a warning on certain call syntax. This can fail CI pipelines that do now allow warnings c7c3b6a.

Version 1.37.0

• Feature: We now check if a component follows the rules of hooks https://solara.dev/documentation/advanced/understanding/rules-of-hooks #706

  Use SOLARA_CHECK_HOOKS=off to disable this check in case this gives unexpected issues, and please open an issue. * Fix: solara-server skips directories when reading extensions which might cause a startup failure otherwise #715

Version 1.36.0

• Feature: Provide a jupyter-widgets-popout-container css class on body for doing specific styling in combination with ipypoout 85c1899

Version 1.35.1

• Bug Fix: Vulnerability which allowed for accessing any file on the system. CVE-2024-39903 391e212.
• Bug Fix: On windows we now read all text files (like CSS) with utf8 encoding by default 681f69b

Version 1.35.0

• Feature: On slower systems, pytest-ipywidgets could time out when connecting to the app, PYTEST_IPYWIDGETS_SOLARA_APP_WAIT_TIMEOUT can be set to increase the timeout. c302caf and Our testing docs.
• Bug Fix: The sidebar container did not have height: 100% set, causing the sidebar to not fill the entire height of the page. 5358f0f
• Bug Fix: Vulnerability which allowed for accessing any file on the system. CVE-2024-39903 391e212. A follow up fix was need for this in 1.35.1, we recommend upgrading to that version.
• Bug Fix: Allow the FileBrowser to navigate to the root on Windows 707 - Contributed by Jochem Smit.

Version 1.34.1

• Bug Fix: Using SOLARA_ASSETS_PROXY=False (default on py.cafe) would break grid layout. #705
• Bug Fix: Hot reload work in more situations on Linux. #702

Version 1.34.0

• Feature: Enhancements for Solara InputDate and InputDateRange components #672:
  • Limiting allowed dates with min_date and max_date arguments.
  • Monthly granularity with date_picker_type="month".
  • InputDateRange selection can be sorted in ascending order with sort argument.
• Bug Fix: Typo in solara.Tooltip. #695
• Bug Fix: ipywidgets.Accordion content was not hidden when closed. #694
• Bug Fix: solara.Tooltip would break any functionality in it's children that relied on the blur, keydown, or focus events. #696
• Bug Fix: Raise an error instead of showing a custom page on 404. Enables custom 404 pages in Solara apps. #670
• Bug Fix: Prevent broken installation by restricting Numpy version. #687 and 286e196.

Version 1.33.0

Details

• Feature: Add support for color argument to solara.Switch. #658
• Bug Fix: Support define for ES Modules when running with virtual kernel. #668
• Bug Fix: Typo in NameError message. #666
• Bug Fix: Show solara.AppBar when navigation tabs are the only child. #656
• Bug Fix: PermissionError for nbextensions on startup in solara>=1.29. #648

Version 1.32.2

Details

• Bug Fix: Theme change not behaving correctly for solara.Markdown and ipywidgets. #636

Version 1.32.1

Details

• Bug Fix: solara.display not working when running a solara server in production mode, or when running a Solara app with flask. #622
• Bug Fix: solara.Markdown would raise a NameError if pymdown-extensions was not installed. #621

Version 1.32.0

Details

• Feature: Support for multiple custom asset locations. #602
• Refactor: Improve API for working with third-party dataframes. #600
• Bug Fix: Give task results more unique keys. #609
• Bug Fix: Avoid closing kernel multiple times. e5ca67b
• Bug Fix: Make page_close beacon thread safe. 2501c83
• Bug Fix: Viewing embedded Solara application in fullscreen could cause a Reacton error. #603
• Bug Fix: Remove fade when navigation is done from a thread/task. #594
• Bug Fix: Support Pydantic 1 and 2 in reactive variables. #601

Version 1.31

We changed solara from a single package into multiple packages.

The solara package is a meta package that installs all the necessary dependencies to get started with Solara. By default, we install:

• pip install "solara-ui[all]"
• pip install "solara-server[starlette,dev]"

Notebook users can simply install solara-ui if they do not need the solara-server. Read our installation guide for more information.

Version 1.30.1

Details

• Bug Fix: Serialization error from attempt to serialize default event handles in component_vue. 793cbb1
• Bug Fix: on_kernel_start callback cleanups could have been triggered multiple times. 4b75ca9
• Bug Fix: Autorender did not render child routes. #575

Version 1.30.0

Details

• Feature: Multiple file support for FileDrop. #562
• Feature: Solara server is now compatible with Pyodide (threads are combined if they cannot be used). #569
• Bug Fix: Nested Vuetify apps were not displayed correctly. #570
• Bug Fix: on_kernel_start callbacks were accumulating on hot reload. #556
• Bug Fix: ES Modules were being loaded multiple times on hot reload. #559
• Bug Fix: Theme CSS was not loaded when rootPath was non-trivial. 829946c
• Fix: Route.component is now rendered, instead of the internal RenderPage component. #555
• Fix: Route.layout now allows for layouts to be used when defining routes manually. #554
• Fix: Allow custom command like arguments that can be parsed by the application. #558

Version 1.29.1

Details

• Bug Fix: Solara installation failing when using pixi. #553

Version 1.29.0

Highlights

• Feature: Improved matplotlib support (pylab interface, display support) making it work more similar as in Jupyter. #540
• Feature: use_dark_effective to get the effective dark mode of the app, making it easier to support dark mode on the Python side #551.

Details

• Feature: /resourcez endpoint to get server resource statistics #547.
• Bug fix: router.push to external links should not use history, allowing navigation to external links 11c6094.
• Bug fix: After upgrading widgets, solara server would still use the previous version due to browser cache #523.
• Bug fix: The example todo app would not work because Ref(..) did not work in combination with use_reactive #544.

Version 1.28.0

Highlight

• Feature: Theming support, including dark theme and auto-detection of device preference #494.

Details

• Feature: Support for ES modules using ipyReact #516.
• Feature: Support for Polars dataframes in solara.DataFrame #195
• Bug Fix: User reactive variables sometimes taking on the value of a solara builtin one (issue #510) #514
• Bug Fix: An extra scrollbar sometimes appearing when no AppBar or SideBar was present on the page #477
• Bug Fix: The browser main scrollbar being present on pages with no scrolling enabled #518

Version 1.27.0

Highlight

• Feature: Task support. Lets you run code in the background, with the UI available to the user. This is useful for long running tasks, like downloading data or processing data #461.
• Feature: Provide access to cookies and request headers #501
• Refactor: Replace MathJax with KaTeX for faster math rendering and a lighter package #483

Version 1.26.0

Demo of @solara.lab.computed with

Highlight

• Feature: computed reactive variables which use the return value of the function. The value will be updated when any of the reactive variables used in the function #455.

Details

• Feature: on_kernel_start triggers callback on virtual kernel start #471.
• Bug fix: Altair works in VSCode and Google Colab #488.
• Feature: get_kernel_id and get_session_id for custom storage #452.
• Bug fix: Mermaid and Math rendering in Jupyter Lab and VSCode #480.

Version 1.25.1

Details

• Performance: Removed unnecessary CSS and JS.
• Performance: Quality of Life - JS and CSS resources automatically reloaded on version change.
• Bug fix: overlay disabling navigation for display width < 960px.

Version 1.25.0

Demo of a Chat GPT interface with medical 3d visualization

Highlight

• Feature: Chat interface components for chatbots, chatrooms or conversational elements in your dashboards or apps #384

Details

• Performance: Under starlette, we throttle sending websocket messages to get better performance, this is experimental and can be enabled by setting the environment variable SOLARA_EXPERIMENTAL_PERFORMANCE=1 #400
• Performance: Reuse the jinja environment when rendering templates (this also saves memory).

Version 1.24.0

Demo of CSS hot reloading

Highlight

• Feature: Hot reloading of css file used with Style components #396
• Bug fix: display() did not work in threads #398
• Bug fix: Support home directory on Windows.

Details

• Bug fix: Do not trigger re-render due to unneeded state in context #386
• Feature: Show number of widgets created and close when using --timing #387

Version 1.23.0

Demo app 'TimeTrekker'

Demo app 'Wanderlust'

Highlights

• Feature: Solara now has a production mode (enabled by passing in --production) which will load optimized CSS and JS and disable hot reloading. Our Solara server page contains more information about it. If you used --reload or --dev before you can now use the -a/--auto-restart flat. The --dev and --reload flags are kept for backwards compatibility.
• Feature: All Input components expose the style and classes arguments for custom styling.
• Feature: New component: InputDate and InputDateRange which use a datepicker in a menu. (#326)
• Feature: The AppLayout component exposes the style and classes argument for custom styling: #367
• Feature: Initial support for ipyvue and ipyvuetify v3: #364
• Feature: The InputText now takes an update_events on argument for custom key combination. This also allows to opt-out of the 'blur' event triggering an on_value: #376
• Bug fix: When using a Sidebar or AppBar we would previously render the main Page component twice, this does not happen anymore: #366
• Documentation: Added a "Jupyter dashboard tutorial" part 1.
• Documentation: Added documentation for use_effect, use_memo, and improved the documentation of use_thread.
• Example: Added an AI tokenizer app example
• Showcase: Added a reproduction of the OpenAI Wanderlust app to our showcases.

Details

• Feature: Menu supports use_activator_width argument, which can be set to false to not have the menu popup be the same with as the activator which is useful for fixed width components such as a date picker.
• Feature:
• Bug fix: Menu component avoids an extra div around the activator to not interfere with the layout: #345
• Bug fix: Menu could be closed or opened on a re-render.
• Bug fix: Solara server failed to start in Docker when $HOME is not set or not writable.
• Bug fix: Solara server should only try to watch files that exists for hot reloading: #356
• Bug fix: A ToggleButtons component using Buttons with value=None would cast it to a string (i.e. value="None") : #369
• Bug fix: PyTest based tests using vue_component_registry would fail outside of solara context, tests should run normally now.
• Bug fix: Our monkeypatched Output widget would raise an exception when get_ipython returns None such as in pytest based testing.
• Bug fix: A custom Layout component was ignored when running solara as a module: #368
• Bug fix: A custom title was ignored when running solara as a script.
• Bug fix: When a child component would overrwrite a meta tags, it now overwrites it.
• Bug fix: do not use excessive memory when rendering markdown: #382