Dash v2.17.0

Added

• #2832 Add dash startup route setup on Dash init.
• #2819 Add dash subcomponents receive additional parameters passed by the parent component. Fixes #2814.
• #2826 When using Pages, allows for app.title and (new) app.description to be used as defaults for the page title and description. Fixes #2811.
• #2795 Allow list of components to be passed as layout.
• #2760 New additions to dcc.Loading resolving multiple issues:
  • delay_show and delay_hide props to prevent flickering during brief loading periods (similar to Dash Bootstrap Components dbc.Spinner)
  • overlay_style for styling the loading overlay, such as setting visibility and opacity for children
  • target_components specifies components/props triggering the loading spinner
  • custom_spinner enables using a custom component for loading messages instead of built-in spinners
  • display overrides the loading status with options for "show," "hide," or "auto"
• #2822 Support no output callbacks. Fixes #1549
• #2822 Add global set_props. Fixes #2803

Fixed

• #2362 Global namespace not polluted any more when loading clientside callbacks.
• #2833 Allow data url in link props. Fixes #2764
• #2822 Fix side update (running/progress/cancel) dict ids. Fixes #2111
• #2817 Change hashing algorithm from md5 to sha256. Fixes #2697
• #2816 Fix dcc.Dropdown value not updated when option is removed. Fixes #2733
• #2823 Fix None in "wait" methods causing incorrectly passing tests. Fixes #2818