Dash Version 4.2.0rc1

Added

• #3742 Add websocket callbacks to fastapi and quart backends.

Dash Version 4.2.0rc0

Fixed

• Fix websocket used in the same FastAPI server. Fix #3636
• Fix FastAPI url paths order. Fix 3667

Dash v4.1.0

Added

• #3637 Added debounce prop to Dropdown.

Fixed

• #3629 Fix date pickers not showing date when initially rendered in a hidden container.
• #3660 Allow same date to be selected for both start and end in DatePickerRange components
• #3600 DatePicker support for the Moment.js Y year token
• #3627 Make dropdowns searchable wheen focused, without requiring to open them first
• #3656 Improved dropdown performance for large collections of options
• #3643 Fix multiselect dropdown with components as labels
• #3609 Add backward compat alias for _Wildcard
• #3672 Improve browser performance when app contains a large number of pattern matching callback callbacks. Exposes an api endpoint to fetch the latest computeGraph call.

Dash Version 4.1.0rc0

Added

• Add support for multiple backend implementation beside flask such as fastapi and quart (both included).
  • Add app = Dash(backend="flask" | "fastapi" | "quart" | CustomBackendImpl) parameter to automatically setup
  • An existing Fastapi, Quart or Flask instance can also be given as app = Dash(server=Fastapi()) to automatically setup a dash app on the server.
  • Install fastapi dependencies with pip install dash[fastapi] or quart with pip install dash[quart], flask is still included by default.
  • Custom backend implementation can be added as a subclass of dash.backends.base_server.BaseDashServer and response/request adapters.

Dash Version 4.0.0

Added

• Redesigned dash core components

Added since 4.0.0rc6

• Add a prop to sliders, allow_direct_input, that can be used to disable the inputs rendered with sliders.
• Improve CSS styles in calendar when looking at selected dates outside the current calendar month (show_outside_days=True)

Dash Version 3.4.0

Added

• [#3568]((#3568) Added children and copied_children props to dcc.Clipboard to customize the button contents before and after copying.
• [#3534]((#3534) Adds playsInline prop to html.Video. Based on [#2338]((#2338)
• #3541 Add attributes dictionary to be be formatted on script/link (_js_dist/_css_dist) tags of the index, allows for type="module" or type="importmap". #3538
• #3542 Add hidden=True to dash pages callback.
• #3564 Add new parameter hide_all_callbacks to run(). Closes #3493
• #3563 Add hidden to clientside callbacks as configurable parameter

Fixed

• #3541 Remove last reference of deprecated pkg_resources.
• #3548 Fix devtools overflowing it's container on version update. Fix #3535.
• #3545 Replace deprecated asyncio.iscoroutinefunction() call with inspect.iscoroutinefunction()

Changed

• #3540 Expose more types for better static typing options.
• #3520. Set pointer-events to auto on Tooltip to make it possible to interact with tooltip content when targetable=True

v4.0.0rc6

Added

• Restored missing implementation for with_portal and with_full_screen_portal in datepickers

Changed

• Bugfixes for feedback received in rc5: notably, popovers are position: fixed once again.

v4.0.0rc5

Added

• New prop in dcc.Upload allows users to recursively upload entire folders at once

Changed

• Bugfixes for feedback received in rc4

v4.0.0rc4

• New dcc.Button component that mirrors html.Button but with default styles applied
• Fix various bugs found in rc3

v4.0.0rc3

Added

• Modernized dcc.Tabs
• Modernized dcc.DatePickerSingle and dcc.DatePickerRange
• DatePicker calendars can now accept translations as an external script, either with Dash's external_scripts or from the assets folder. See documentation for the underlying library that supports this.

Changed

• dcc.Tab now accepts a width prop which can be a pixel or percentage width for an individual tab.
• dcc.Tab can accept other Dash Components for its label, in addition to a simple string.