Version 1.47.0

[mathcatsand]

Highlights

• Streamlit has additional theming configuration options!
  • theme.baseFontWeight: Set the root font weight of text in the app.
  • theme.chartCategoricalColors: Configure default categorical colors for Plotly, Altair, and Vega-Lite charts.
  • theme.chartSequentialColors: Configure default sequential colors for Plotly, Altair, and Vega-Lite charts.
  • theme.codeFontWeight: Set the font weight of code text.
  • theme.dataframeHeaderBackgroundColor: Set the background color of dataframe headers.
  • theme.headingFontSizes: Set the font sizes of headings.
  • theme.headingFontWeights: Set the font weights of headings.
  • theme.linkUnderline: Configure whether to underline links.

Notable Changes

• You can set the unsubmitted value of st.chat_input through Session State (#10175, #7166).
• ↔️ You can set a width parameter for st.html, st.feedback, st.pills, st.segmented_control, and st.multiselect.
• You can set a height parameter for st.metric and st.text_area.
• st.code and st.form can have height="stretch".
• st.code can have width="content".
• You can show the elapsed time with the spinner for cached functions using the show_time parameter (#11469, #10647). Thanks, Darkace01!
• server.showEmailPrompt lets you configure whether to show the email prompt (for locally running apps).
• NumberColumn and ProgressColumn support "bytes" as a predefined format (#11288, #11287). Thanks, cgivre!
• Column configuration accepts pixel widths for columns (#11838).
• The display_text parameter of LinkColumn accepts a Material icon (#11690, #7004).
• The title parameter of st.dialog accepts Markdown (#11763, #11755).
• To support proxying requests for custom components, in declare_component, you can set both url and path (#11698).

Other Changes

• Section labels in the sidebar navigation widget are collapsible (#11863).
• The “Deploy” button is hidden when the “File change” notification is visible in the app chrome (#11834).
• When using top navigation in an app, the header has more padding (#11836).
• In NumberColumn, the precision from step will override the display precision from format, unless format is a printf string (#11835).
• When st.date_input accepts a date range, the widget displays a quick-select option below the calendar for common date ranges (#10166, #11108).
• Dataframes support font weight defined in pandas Styler objects (#11705, #6461).
• The about dialog does not show by default in the app menu. The current Streamlit version is displayed in the settings dialog (#10091).
• st.metric uses a background color for the delta value, like st.badge (#11678).
• IDEs can give type hints for .clear() on cached functions (#11793, #11821). Thanks, whitphx!
• Bug swap: To prevent a multipage app regression, st.context.theme does not automatically rerun the app on first load. In some cases, st.context.theme may not be correct until the first rerun (#11870, #11797).
• Bug fix: st.chat_input displays correctly at the bottom of the screen in mobile view (#11896, #11722, #11891).
• Bug fix: When a WebSocket reconnects, the app will fully rerun to prevent missing fragments (#11890, #11660).
• Bug fix: To reduce No such file or directory errors, the file watcher has more robust exception handling and clearer logging (#11871, #11841, #11809, #11728).
• Bug fix: Vega-Lite facet charts do not flicker (#11833).
• Bug fix: When the initial sidebar state is set to "collapsed", the sidebar correctly loads in a collapsed state without flickering open (#11861, #11848).
• Bug fix: To prevent apps from being out of sync with their current code at a later time, Streamlit clears the script cache when all file watchers disconnect (#11876, #11739). Thanks, diwu-sf!
• Bug fix: Inline code in tooltips has the same relative size as inline code in other Markdown text (#11877).
• Bug fix: st.multiselect and st.selectbox display the correct placeholder text when accept_new_options=True (#11623, #11609).
• Bug fix: The column visibility menu can be closed by toggling the toolbar icon (#11857, #11801).
• Bug fix: Progress bar columns in dataframes have the correct padding between the bar and its label (#11685).
• Bug fix: The warning indicator in a dataframe cell adapts to theme configuration (#11682).
• Bug fix: To fix multiple visual and UX bugs in dataframe, glide-data-grid was updated (#11677, #8310, #9498, #9471).
• Bug fix: In the sidebar navigation widget, font spacing and weight were adjust for visual clarity (#11814).
• Bug fix: Altair charts correctly resize in width to match their container (#11807, #11802).
• Bug fix: The running-man icon matches the theme configuration (#11461, #11371). Thanks, TreavVasu!
• Bug fix: The top header background is correctly opaque when it contains elements (#11787, #11785).
• Bug fix: Extra top padding is removed when printing (#11798).
• Bug fix: Markdown inline code displays correctly when unsafe_allow_html=True (#11817, #11800). Thanks, bajajku!
• Bug fix: The WebSocket ping interval does not exceed the timeout interval (#11693, #11670).
• Bug fix: The sidebar state initialized correctly on Community Cloud and page content slides and resizes correctly in response to the sidebar (#11732, #11702, #11710).
• Bug fix: The timer in st.spinner uses system time to prevent pausing when the user focuses on another browser tab (#11756, #11720).
• Bug fix: Empty containers with borders and empty expanders are visible before elements are added to them (#11669).
• Bug fix: st.audio_input and st.camera_input have consistent appearances (#11699, #11700).
• Bug fix: To prevent a race condition, the file watcher correctly applies a lock to watched paths (#11692, #11691).