Version 1.53.0

[mathcatsand]

Highlights

• You can create session-scoped caller’s rights connections in Streamlit in Snowflake and other Snowpark Container Services environments.

• Announcing experimental support for running Streamlit with Starlette with the new server.useStarlette configuration option.

• Introducing st.App, an experimental ASGI-compatible entry point that enables custom HTTP routes, middleware, lifecycle hooks, and integration with Python web frameworks like FastAPI and Starlette (#13537).

• You can expose OIDC ID and access tokens in st.user.tokens (#12044). Thanks, velochy!

To comment on the Starlette and ASGI support, see the discussion on GitHub.

Notable Changes

• st.logout logs users out of your identity provider, if supported by your OIDC setup (#12693). Thanks, velochy!

• To prevent unwanted stale elements, especially in chat layouts, Streamlit treats spinners as transient elements and doesn’t include them in the element refresh that happens with reruns (#12826, #9239, #10199, #13166).

• For custom components v2, style isolation is set in st.components.v2.component instead of when an instance is mounted (#13518).

• To access heading font size and weights in custom components without using JavaScript to parse an array, CSS custom properties in an app include individual properties for each heading font size and weight (#13268).

• For custom components v2, html, js, and css are all fully optional (#13511).

• BaseConnection has a new class method to scope connections globally or by session (#13506).

• st.cache_data and st.cache_resource can be scoped to a session (#13482, #6703).

• st.cache_resource has a new parameter on_release to use to clean up resources, like closing connections (#13439, #8674).

• st.multiselect doesn’t include options in widget identity when a key is provided (#13448, #7855).

• st.number_input doesn’t include min and max in widget identity when a key is provided (#13512, #11277).

• st.selectbox doesn’t include options in widget identity when a key is provided (#13383, #6352, #8496, #4854).

• You can format values for st.slider with a new format parameter (#13392, #13243).

• st.dialog has a new icon parameter to add an icon next to the dialog title (#13244, #13202). Thanks, KaranPradhan266!

• You can configure st.data_editor to allow only adding or only deleting rows (#13228, #7091).

• You can display a button icon on the right instead of the left with a new icon_position parameter (#13150, #13069). Thanks, SiddhantSadangi!

• ↔️ st.columns, st.container, and st.space support larger and smaller gap and size values (#13345).

• You can configure the maximum file size for st.file_uploader and st.chat_input with a new parameter that overrides the server.maxUploadSize configuration option (#12816, #12692, #12579). Thanks, rishabhjain1712!

• You can configure the default width of the sidebar with st.set_page_config (#12154, #11980). Thanks, jose-mindwayai!

• The options parameter in st.select_slider supports Markdown (#12960, #11774). Thanks, jensonjohnathon!

• The delta and value parameters in st.metric support Markdown (#13094, #11773). Thanks, jensonjohnathon!

• You can configure number format in st.metric (#13193, #12229, #6951).

• You can set the color of st.metric delta indicators from the basic color palette (#13153, #4052, #6665).

Other Changes

• You can exclude the port from your Streamlit auth redirect URI to use the current port (#12251, #12249). Thanks, velochy!

• Various custom components v2 types were semantically renamed (#13515).

• When an item is removed from st.multiselect, the scroll position of the drop down is preserved (#13384, #13317). Thanks, kagawa0710!

• Pydantic sequences are treated as dataframe-like by Streamlit commands (#13348, #13344).

• The logo displayed by st.logo links to the app’s homepage (#13222, #13155).

• For improved accessibility, tooltips are keyboard focusable (#13379, #13330).

• For improved accessibility, anchor links are keyboard focusable (#13378, #13329).

• st.json displays a tooltip on hover for each element to show its full path (#13113, #13057).

• st.chat_input was redesigned for improved style and accessibility (#13088, #13223, #13364, #13532, #13556, #13546, #13542, #13535, #13554, #13553, #13555, #13547).

• Various style updates for consistency (#13536, #13557).

• st.auth is compatible with Authlib version 1.6.6 (#13333, #13335, #13424).

• Bug fix: Embedded apps respect the theme embedding option when they are configured with a custom theme (#13498, #13496). Thanks, ranmocy!

• Bug fix: st.number_input accounts for floating point precision when incrementing and decrementing its value (#13484).

• Bug fix: st.altair_chart correctly displays HConcat and VConcat charts (#13423, #13410).

• Bug fix: st.selectbox is initialized correctly when its value is set from Session State (#13438, #13435).

• Bug fix: st.html indents list items correctly (#13437, #13426).

• Bug fix: A logger message for SnowflakeConnection references the correct URL to the Snowflake docs (#13363, #13361).

• Bug fix: Tooltip text with newlines renders correctly (#13365, #13339).

• Bug fix: The DOM elements within st.spinner are properly aligned when showing elapsed time (#13388, #13387).

• Bug fix: Custom components v2 have the same cross-origin behavior as other elements in the app (#13376).

• Bug fix: CSS custom properties in custom components handle null or unset values correctly (#13240).

• Bug fix: Theme preference is persisted into new app sessions (#13306, #13280).

• Bug fix: st.dialog doesn’t show stale elements from a previous dialog (#13297, #10907).

• Bug fix: st.data_editor behaves correctly when starting with a column of None values (#13309, #13305).

• Bug fix: To correctly reflect edits to the theme configuration during development, theme settings are properly hashed (#13173).

• Bug fix: In v2 custom components, app-level keyboard shortcuts (like R for rerun) are disabled in typing contexts to prevent unintentional usage (#13264).

• Bug fix: Custom component v2 includes default values in component identity, unless a key is provided (#13266).

• Bug fix: The sidebar navigation is correctly hidden when topbar navigation is used (#13227, #13224).

• Bug fix: st.logo displays the logo correctly when an app uses top navigation (#13226, #13225).

• Bug fix: Error messages are clearer when width or height are invalidly set to 0 (#13206, #12868).