Dash v2.10.0

Changed

• #2538 Add an upper bound to Flask and Werkzeug versions at <2.2.3 because we expect the Dash ecosystem to be incompatible with the next minor release of Flask (this excludes the current latest Flask release 2.3.x). We will raise the upper bound to <2.4 after we fix incompatibilities elsewhere in the Dash ecosystem.

Added

• #2540 Add include_pages_meta=True to Dash constructor, and fix a security issue in pages meta tags #2536.

Fixed

• #2508 Fix error message, when callback output has different length than spec
• #2207 Fix object of components support.
• #2500 Passing customdata by click for scattermapbox, fix #2493
• #2513 Raise error when iterating over patch objects, fix #2512

Updated

• #2533 and #2538 Update Plotly.js to v2.23.2 from v2.20.0.

  • Feature release 2.23.0 adds legend/colorbar xref/yref.
  • Feature release 2.22.0 adds legend references to traces.
  • Feature release 2.21.0 adds label.texttemplate to parametric shapes.
  • Patch releases 2.23.1 and 2.23.2 fix heatmap rendering on iOS and Safari when zsmooth is set to false and shape text when drawing a new shape.

• #2538 Update JS dependencies in dcc, html, dash-table, dash-renderer, and dash

Dash v2.9.3

Fixed

• #2489 Fix location change event handling when Location objects are removed from the layout. Event handlers would not be removed and eventually change props of a random DOM element, fix #1346
• #2498 Fix error when caching callbacks which return Patch objects by making Patch objects picklable
• #2491 Fix clientside inline function name not found, fix #2488

Dash v2.9.2

Fixed

• #2479 Fix KeyError "Callback function not found for output [...], , perhaps you forgot to prepend the '@'?" issue when using duplicate callbacks targeting the same output. This issue would occur when the app is restarted or when running with multiple gunicorn workers.
• #2471 Fix allow_duplicate output with clientside callback, fix #2467
• #2473 Fix background callbacks with different outputs but same function, fix #2221

Dash v2.9.1

Fixed

• #2461 Fix pytest plugin make report when testing not installed, fix #2420

Dash v2.9.0

Breaking

• #2450 Set label style display: block if inline is false in RadioItems & Checklist components. To keep previous behavior, set inline=True. This is already how it was described and worked in our documentation and other places with CSS stylesheets that set the default orientation of RadioItems and Checklist options to vertical (including Dash Design Kit), but for unstyled pages it is a breaking change.

Added

• #2392 Improved pages feature:
  • Accept an absolute path or a pathlib.path for pages_folder, to match assets_folder
  • Fix inferring use_pages=True when you supply a custom pages_folder
  • Fix for pages_folder that includes special characters
  • New test fixture clear_pages_state
  • Make imported pages act more like regular Python modules
• #2068 Added refresh="callback-nav" in dcc.Location. This allows for navigation without refreshing the page when url is updated in a callback.
• #2417 Add wait_timeout property to customize the behavior of the default wait timeout used for by wait_for_page, fix #1595
• #2417 Add the element target text for wait_for_text* error message, fix #945
• #2425 Add add_log_handler=True to Dash init, if you don't want a log stream handler at all.
• #2260 Experimental support for React 18. The default is still React v16.14.0, but to use React 18 you can either set the environment variable REACT_VERSION=18.2.0 before running your app, or inside the app call dash._dash_renderer._set_react_version("18.2.0"). THIS FEATURE IS EXPERIMENTAL. It has not been tested with component suites outside the Dash core, and we may add or remove available React versions in any future release.
• #2414 Add dash.Patchfor partial update Output props without transferring the previous value in a State.
• #2414 Add allow_duplicate to Output arguments allowing duplicate callbacks to target the same prop.

Fixed

• #2429 Fix side effect on updating possible array children triggering callbacks, fix #2411.
• #2417 Disable the pytest plugin if dash[testing] not installed, fix #946.
• #2417 Do not swallow the original error to get the webdriver, easier to know what is wrong after updating the browser but the driver.
• #2425 Fix multiple log handler added unconditionally to the logger, resulting in duplicate log message.
• #2415 Fix background callbacks progress not deleted after fetch.
• #2426 Set default interval to 1 second for app.long_callback, restoring the behavior it had before v2.6.0 when we introduced backround=True callbacks.

Changed

• #2425 Moved the logger namespace to dash.dash, as library logger it should be on that namespace instead of the user app.

Updated

• #2241 Update Plotly.js to v2.20.0 from v2.18.0.
  • Feature release 2.20.0 adds automargin to the main plot title.
  • Feature release 2.19.0 adds text labels to layout.shapes, and adds a labelalias property to replace specific axis tick labels.
  • Patch releases 2.18.1,
    2.18.2,
    2.19.1 fix various bugs.

Dash v2.8.1

Fixed

• #2400 Added disable_n_clicks=True to the html.Div components in page_container.

Dash v2.8.0

Added

• #2389 Added disable_n_clicks prop to all html components to make it possible to remove onclick event listeners

Fixed

• #2388 Fix #2368 ordering or Pattern Matching ALL after update to the subtree.

Updated

• #2367 Updated the default favicon.ico to the current Plotly logo
• #2394 Update Plotly.js to v2.18.0 from v2.16.4.
  • Feature release 2.18.0 adds sync tickmode, so several axes can share ticks and gridlines
  • Feature release 2.17.0 adds automargin for multiple Y axes, a grouped mode for scatter traces, and rounded corners on treemap traces
  • Patch releases 2.17.1 and 2.16.5 fix various bugs

Dash v2.7.1

Fixed

• #2344 Fix #1519, a case where dependent callbacks can be called too many times and with inconsistent inputs
• #2332 Add key to wrapped children props in list.
• #2336 Fix inserted dynamic ids in component as props.

Updated

• #2361 Dependencies upgrade.
  • Update Plotly.js to v2.16.4 (from v2.16.1): fix several bugs, particularly related to updating mapbox graphs.
    • Patch release 2.16.4
    • Patch release 2.16.3
    • Patch release 2.16.2
• #2363 Update html attributes for ol

Dash v2.7.0

Removed

• #2282 Dropped support for Internet Explorer. Our build process now targets vendor-supported browsers released in the last 7 years. Currently this means ES2015 but over time this will natually advance as older browser versions pass the 7-year threshold.

Added

• #2261 Added new placeholder_text property to filterOptions for DataTable which allows overriding the default filter field placeholder.

Updated

• #2282 Widespread dependency upgrades
  • Update Plotly.js to v2.16.1 (from v2.13.3)
    • Feature release 2.14.0 adds arrows to sankey links, and editSelection option to config.
    • Feature release 2.15.0 adds directed arrowheads and markers to scatter and scatter-like traces and increased control of automargin and legend sizing
    • Feature release 2.16.0 adds clustering to scattermapbox traces and restricted bounds to mapbox plots.
    • Patch releases 2.15.1 and 2.16.1 fix several bugs.

Fixed

• #2292 Pages: find the 404 page even if pages_folder is nested, or the 404 page is nested inside pages_folder.
• #2265 Removed deprecated before_first_request as reported in #2177.
• #2257 Fix tuple types in the TypeScript component generator.
• #2293 Fix Dropdown useMemo not detecting equal objects
• #2277 Use dropdown styles from node_modules, instead of from stored css file
• #2105 Fix order of dash component libraries imports.

Changed

• #2291 Move flask-compress dependency to new extras requires dash[compress]

Dash v2.6.2

Fixed

• #2237 Ensure calls to plotly.js from dcc.Graph are properly sequenced even if React initiates multiple render cycles in quick succession.
• #2218 Fix bug #1348 Validate children prop (required or not).
• #2223 Exclude hidden folders when building dash.page_registry.
• #2182 Fix #2172 Make it so that when using pages, if suppress_callback_exceptions=True the validation_layout is not set.
• #2152 Fix bug #2128 preventing rendering of multiple components inside a dictionary.
• #2187 Fix confusing error message when trying to use pytest fixtures but dash[testing] is not installed.
• #2202 Fix bug #2185 when you copy text with multiple quotes into a table
• #2226 Fix #2219 pages register & background callbacks.