2026 release notes

This page contains release notes for Streamlit versions released in 2026. For the latest version of Streamlit, see Release notes.

Version 1.60.0

Release date: July 21, 2026

Highlights

  • ✨ You can now disable bulk data export app-wide with the new client.disableDataExport config option. When set, the CSV export button is hidden for st.dataframe, st.data_editor, and chart table views, and clipboard copy is disabled for read-only dataframes (#15910, #8402, #11358).

Notable Changes

  • 🔒 Security hardening (breaking changes):
    • Streamlit now rejects host messages that appear to originate from child iframes or injected scripts, preventing origin spoofing (CWE-346) (#15800).
    • Client-supplied query strings are now capped at 512 KiB and 1,000 fields, guarding against unbounded resource allocation (CWE-770) (#15803).
    • New server.maxWidgetStateSize config option (default 25 MB) limits the widget state payload a client can send per script rerun, hardening against oversized widget and custom-component payloads (#15804).
  • 📊 st.dataframe now preserves row selections when the user sorts the table (#16020, #8851).
  • 🎛 st.tabs has a new height parameter to set a fixed pixel height for the tab panel area (#15847, #12217).
  • 📐 The gap parameter in st.columns now accepts integer pixel values in addition to the existing string presets (#15850, #13005).
  • 🎨 st.data_editor now uses key as the primary row identity when num_rows="fixed", improving stability when the underlying data changes (#15884).
  • 📈 Zero delta values in st.metric are now displayed in neutral grey instead of green or red, so a zero change no longer implies a positive or negative direction (#15790, #15005).
  • 🖌 Vega-Lite chart action buttons (download, copy spec to clipboard) are now integrated into the native Streamlit toolbar; the Vega-Lite action menu overlay has been removed (#15806).

Other Changes

  • 🐛 Bug fix: Non-finite float values (e.g. NaN, Inf) in URL query params are now rejected to prevent unexpected behavior (#15799).
  • 🦋 Bug fix: Dangerous URLs in Graphviz link attributes are now sanitized (#15819).
  • 🪲 Bug fix: HTML in PyDeck chart tooltip interpolations is now escaped to prevent injection (#15820).
  • 🐜 Bug fix: Dangerous URLs in st.link_button and st.image are now sanitized (#15851).
  • 🐝 Bug fix: st.selectbox now virtualizes long dropdown option lists for better rendering performance (#15870, #15863).
  • 🐞 Bug fix: Viewport gutter is now preserved around dialogs on narrow screens (#15875).
  • 🕷️ Bug fix: React Aria dialog overlays now stack correctly when multiple dialogs are open (#15876, #15859).
  • 🪳 Bug fix: The "Missing Submit Button" warning has been removed (#15889, #14247).
  • 🪰 Bug fix: st.tabs panels no longer stack visually after a widget rerun (#15894, #15893).
  • 🦠 Bug fix: st.metric area chart fill baseline is now drawn correctly (#15907).
  • 🦟 Bug fix: run_every auto-rerun timers are now deduplicated per fragment, preventing duplicate reruns (#15912).
  • 🦂 Bug fix: Redundant keyboard tab stop removed from the file uploader dropzone for better accessibility (#15928).
  • 🦗 Bug fix: Auto-rerun correctly stops when a fragment is evicted (#15932).
  • 🕸️ Bug fix: A PyArrow 25 thread initialization crash is now avoided (#15947).
  • 🐌 Bug fix: Missing httpx error message for the auth extra is now surfaced correctly (#15864).
  • 🦎 Bug fix: st.App with programmatic secrets now correctly honors the expose_tokens setting (#15865).
  • 🦀 Bug fix: RuntimeError: reentrant call inside _io.BufferedWriter on Ctrl+C is fixed (#15949, #15740). Thanks, chang-pro!
  • 👽 Bug fix: File watcher no longer crashes on Windows drive-root paths (#15951, #12731).
  • 👻 Bug fix: Overlay stacking and dismissal inside popovers works correctly (#15961).
  • 🐛 Bug fix: Mobile keyboard no longer appears for st.selectbox when filter_mode=None (#15962).
  • 🦋 Bug fix: st.selectbox "No results" empty state is now styled correctly (#15967).
  • 🪲 Bug fix: IndexError in number formatting for values ≥ 1 quadrillion is fixed (#15971). Thanks, eeshsaxena!
  • 🐜 Bug fix: Type-to-search in st.selectbox is restored (#15996, #15985).
  • 🐝 Bug fix: Typing a value in st.number_input inside a form now correctly submits on the first Enter press (#16013, #13751).
  • 🐞 Bug fix: Hashing fallback warning messages are now more informative (#16040, #10957).
  • 🕷️ Bug fix: Inconsistent checkbox margin in a horizontal container within a column is fixed (#16060, #13162).
  • 🪳 Bug fix: Widgets inside a popover that is itself inside a dialog are now clickable (#16067, #16005).
  • 🪰 Bug fix: st.echo output now correctly includes decorators on the displayed function (#16068, #9252).
  • 🔩 Internal TTLCache implementation replaces the cachetools third-party dependency (#16014).

Version 1.59.0

Release date: July 6, 2026

Highlights

  • ✨ Introducing ButtonColumn — a new column type for st.dataframe and st.data_editor that renders clickable buttons inside table cells, letting users trigger actions directly from a row (#14544, #7015).
  • 📊 st.dataframe has a new column statistics submenu — click the dropdown icon in any column header to see per-column summary stats (#14307, #13148).
  • 🍿 Introducing st.skeleton — a new element that renders animated loading placeholders, making it easy to give users visual feedback while content is loading (#15169, #8032).
  • 🎨 Introducing st.mermaid_chart — render Mermaid diagrams directly in your app, letting you embed flowcharts, sequence diagrams, and more. Mermaid also works from st.markdown (#14022, #10721).

Notable Changes

  • 🎛 st.chat_input has a new submit_mode parameter that controls widget behavior after the user submits a message, e.g. showing a stop button or disabling the chat input (#14344, #8323, #11854).
  • 📋 st.dataframe and st.data_editor support a new MarkdownColumn type in st.column_config that renders Markdown text inside table cells (#13931, #10211).
  • 🔗 st.markdown has a new anchors parameter for adding linkable heading anchors to Markdown content (#15722, #13913).
  • 💻 You can now launch Streamlit apps directly with python app.py or uv run app.py using the new App.run() entry point — no more streamlit run required (#15563, #9450, #11420).
  • 🧩 st.fragment can now write to containers defined outside the fragment. Fragments can update any part of your app — including elements created before the fragment — without triggering a full rerun (#15623, #15620, #10481).
  • 📎 st.chat_input now supports pasting files directly into the input field (#15558, #10307).
  • 🤖 st.write_stream now supports OpenAI Responses API streams in addition to the existing Chat Completions streams (#15559, #11061).
  • 🔒 st.set_page_config supports a new "locked" option for initial_sidebar_state that prevents users from toggling the sidebar open or closed (#15459, #15411).
  • 💅 Widgets have a new persist_state parameter for finer control over how widget state is preserved across reruns (#15645).
  • 📷 st.camera_input has a new resolution parameter to control the captured image resolution (#15766, #4320).
  • 🧪 AppTest now supports testing st.download_button and st.image (#15528, #9003).
  • 💾 Programmatic secrets now support list values (#15491).
  • ⌨ You can now look up Streamlit API documentation from the CLI with streamlit docs <command> (#15547).
  • 🔐 A new server.xsrfCookieSameSite config option lets you customize the SameSite attribute of the XSRF cookie for deployments with specific cross-site requirements (#15634, #5793, #9397).
  • 💡 Streamlit now recommends installing AI coding skills on app startup to improve your development workflow with AI coding assistants (#15437, #15473).
  • ⚙ The /_stcore/metrics endpoint now reports memory stats in a less detailed (cheaper) form by default (#15472).
  • 👻 The deprecated Snowpark connection type has been removed. Migrate to a supported connection type (#15784).
  • 👻 The deprecated st.bokeh_chart command has been removed. Use the streamlit-bokeh component instead (#15636).

Other Changes

  • ⚡ VegaLite charts now use Vega's native resize API for faster rendering when the container size changes (#15302).
  • 🎨 The pagination widget's selected-state styling has been redesigned (#15550).
  • 🔧 Various fixes related to the Baseweb library removal (#15737).
  • 🐛 Bug fix: The metrics endpoint no longer errors when SQLAlchemy connections are present (#15334).
  • 🦋 Bug fix: @st.fragment(run_every=...) no longer raises a TypeError in _run_with_thread_state (#15376).
  • 🪲 Bug fix: Named Snowflake connections defined in config files are now correctly discovered and used (#15382).
  • 🐜 Bug fix: P-mode PIL palette images are now hashed correctly to prevent hash collisions (#15397).
  • 🐝 Bug fix: The server now correctly binds to IPv6 dual-stack wildcards for the default address (#15400).
  • 🐞 Bug fix: Stale and invalid auth cookies are now cleared on login (#15420).
  • 🕷️ Bug fix: widgetMgr is synced correctly to fix lazy loading in tab.open (#15460).
  • 🪳 Bug fix: Installed Custom Component v2 components are now correctly discovered in AppTest (#15488).
  • 🪰 Bug fix: st.pills and st.segmented_control callbacks now fire correctly after selection (#15522).
  • 🦠 Bug fix: The page title is no longer reset to the default on rerun (#15527).
  • 🦟 Bug fix: The "Missing Submit Button" warning no longer flashes briefly on app load (#15561).
  • 🦂 Bug fix: Streamlit now defaults to the polling file watcher in WSL environments, avoiding inotify issues (#15562).
  • 🦗 Bug fix: AppTest now correctly handles formatted labels in format_func widgets (#15564).
  • 🕸️ Bug fix: The invalid session upload error message now explains multi-replica deployment as a possible cause (#15635).
  • 🐌 Bug fix: st.selectbox no longer loses its selection when format_func depends on object identity (#15639).
  • 🦎 Bug fix: Pressing Escape no longer clears the current selection in st.multiselect (#15646).
  • 🦀 Bug fix: StreamlitPage now validates that its source matches the registered page, catching misconfiguration earlier (#15721, #10572).
  • 👽 Bug fix: st.dataframe no longer intercepts the Ctrl+F keyboard shortcut when the search bar is disabled (#15764).
  • 🐛 Bug fix: Column headers in st.dataframe no longer wrap text in the column header menu (#15772).

Version 1.58.0

Release date: May 28, 2026

Highlights

  • 🌟 Introducing parallel=True for @st.fragment, which lets fragments run concurrently for more responsive apps and background-style workflows (#15214).
  • 🍿 Introducing st.pagination to help you build paged interfaces, e.g. for dataframes (#14975, #10785).
  • 🚀 Announcing streamlit skills, a new CLI command for installing AI agent skills (#15116).

Notable Changes

  • 🔔 st.App now supports custom script error handling, letting you attach a custom exception handler to your app (#14972, #3426, #8713).
  • 📐 st.expander and st.status have a new type parameter for a more compact visual style (#14054, #13246).
  • 👻 The deprecated element.add_rows feature has been removed (#15034, #299, #13063, #7994, #5860).
  • 👻 LangChain callback handler integration has been removed (#15051).

Other Changes

  • 🐛 Query-parameter-bound widgets now keep the URL in sync when their values change through Session State (#14744).
  • 🖌 Widget and icon sizing is more consistent across the app (#15056, #15098, #13945).
  • ⏱ Streamlit reduces the timeout for external IP lookups to avoid startup freezes when the lookup is slow or unavailable (#14984).
  • 🛡 st.markdown now blocks javascript: and vbscript: URLs in Markdown links (#15161).
  • 🐛 Bug fix: Streamlit now supports symlinks in Starlette static file serving (#15112, #13600).
  • 🦋 Bug fix: Fragment apps no longer crash because of stale auto-reruns (#15130, #15084).
  • 🪲 Bug fix: blake2b hashing now uses usedforsecurity=False for FIPS-compatible environments (#15149, #15148). Thanks, andriykislitsyn!
  • 🐜 Bug fix: st.login cookies now restore 30-day persistence with a Max-Age value (#15194, #15193). Thanks, GiovanniPaoloGibilisco!
  • 🐝 Bug fix: OAuth PKCE behavior has been restored in the Starlette-based auth flow (#15282, #15115).
  • 🐞 Bug fix: OAuth no longer regresses with MismatchingStateError after upgrading to 1.57.0 (#15048, #14991).
  • 🕷️ Bug fix: Provider tokens now use joserfc, improving auth compatibility and token handling (#15178, #15170).
  • 🪳 Bug fix: st.vega_lite_chart tooltips work again inside dialogs (#15191, #12390). Thanks, marawanokasha!
  • 🪰 Bug fix: st.button warns when a keyboard shortcut is reserved by the browser (#15217, #15216).
  • 🦠 Bug fix: st.markdown shows its help icon again when unsafe_allow_html=True (#15232, #15211).
  • 🦟 Bug fix: Browser Back/Forward navigation now works for pages with Unicode URL paths (#15281, #15267).
  • 🦂 Bug fix: Programmatically closed popovers and expanders no longer reopen when you interact with another container (#14945, #14943).
  • 🦗 Bug fix: st.selectbox no longer hides its first option when exactly seven options are selected (#14997, #14989).
  • 🕸️ Bug fix: st.multiselect disables "Select all" for very large option lists to avoid performance problems (#15301, #14918, #15299).
  • 🐌 Bug fix: Tables, dataframes, and data editors no longer accidentally overscroll during interaction (#15309). Thanks, kantuni!

Version 1.57.0

Release date: April 29, 2026

Highlights

  • 🚀 Introducing Starlette as the default web server! Streamlit now uses Starlette/Uvicorn instead of Tornado, bringing improved ASGI compatibility, better performance, and access to the modern Python async ecosystem. The underlying server is also exposed via st.App for advanced configuration (#14553, #439, #861).
  • 🍿 Introducing st.bottom — a pinned container at the bottom of your app, perfect for chat inputs, toolbars, and persistent controls (#14726, #8564, #8185).

Notable Changes

  • ✨ Introducing the :shimmer[] markdown directive — add animated loading text to your apps with st.markdown(":shimmer[Loading...]") for a polished streaming experience (#14055, #13247).
  • ⚡ Direct Polars-to-Arrow conversion now bypasses pandas entirely, improving performance and type fidelity for Polars DataFrames (#14885, #12913).
  • 👻 Removed deprecated spec, use_container_width, and sharing keyword arguments from st.plotly_chart and st.vega_lite_chart (#14800).
  • 👻 Removed the deprecated _get_websocket_headers function. Use st.context.headers instead (#14801).
  • 🧪 st.testing.v1.AppTest now supports st.pills, st.segmented_control, and st.dataframe key lookups (#14518, #11361, #11338).
  • 🔔 Alert elements (st.info, st.warning, st.error, st.success) have a new title parameter for adding a bold header to alert messages (#14665, #12417).
  • 🎨 st.menu_button and st.popover now hide the chevron when using menu-style icon-only labels (#14697).
  • 🎯 st.App is now available in the st namespace for programmatic app configuration (#14722).
  • 🔑 st.App has a new secrets parameter to programmatically pass secrets instead of relying on secrets.toml files (#14861, #10543).
  • 🤖 Streamlit now bundles developing-with-streamlit AI agent skills in the pip package:
    • Core development skills for AI coding assistants (#14745).
    • App and theme templates for quick scaffolding (#14746).
  • 💅 st.video and st.map now have rounded corners matching other Streamlit elements (#14781, #12806).

Other Changes

  • 🐛 Bug fix: st.dataframe no longer crashes with pandas 3 ArrowStringArray columns (#14611, #14609).
  • 🦋 Bug fix: Custom component v1 serialization now correctly downcasts large Arrow types instead of failing (#14617, #14608).
  • 🪲 Bug fix: @st.cache_data and @st.cache_resource now chain the original exception in UnserializableReturnValueError for better debugging (#14655, #14654). Thanks, mango766!
  • 🐜 Bug fix: CSS Color Level 4 color functions (oklch, lab, etc.) are now supported in color parameters (#14674, #14573).
  • 🐝 Bug fix: Query parameter space encoding is now consistent across all operations (#14691, #14671).
  • 🐞 Bug fix: st.data_editor correctly preserves None values with pandas 3.0+ (#14694, #14693).
  • 🕷️ Bug fix: Namespace package children are now correctly evicted when watched source files reload (#14708, #14704).
  • 🪳 Bug fix: st.radio now retains selections when using format_func with custom option objects (#14815, #14814).
  • 🪰 Bug fix: st.bar_chart axis labels now correctly swap when horizontal=True (#14866, #14830).
  • 🦠 Bug fix: st.text_area with height="content" now sizes correctly on initial load (#14884, #14876).
  • 🦟 Bug fix: st.file_uploader no longer shows duplicate equivalent file extensions in the accepted types display (#14552, #11991).

Version 1.56.0

Release date: March 31, 2026

Highlights

  • 🍿 Introducing st.menu_button — a new widget that renders a dropdown button with a customizable popover container for building menus, toolbars, and action lists (#13981, #11409).
  • 🎁 Introducing st.iframe — embed external URLs or raw HTML content directly in your app using an iframe (#14433, #12977).
  • 🔍 st.selectbox and st.multiselect now support a filter_mode parameter that lets users search and filter options by typing (#14537, #6160, #7238).

Notable Changes

  • 📊 st.dataframe supports programmatically setting selections via the selection parameter (#13594, #10128).
  • 🎯 st.dataframe has a new "single-row-required" selection mode that always keeps exactly one row selected (#14288, #9253).
  • 📐 st.dataframe column configuration now supports an alignment parameter for controlling text alignment in columns (#14333, #12106).
  • 👀 The column visibility menu in st.dataframe is now always visible, making it easier to show and hide columns (#14336, #10649).
  • 🎹 AudioColumn and VideoColumn are now available in st.column_config for displaying audio and video players directly in dataframes (#14032, #8345).
  • 🐍 Streamlit now supports pandas 3.x (#13812, #13211).
  • 🧭 st.navigation has a new expanded parameter to control how many sidebar items are visible before collapsing (#14051, #9646).
  • 🔗 st.Page now accepts external URLs, allowing you to add links to external sites in the navigation sidebar (#13691, #9025). Thanks, t0k0shi!
  • 🖼 st.table has new hide_index and hide_header parameters for cleaner table presentation (#14113, #8235, #9251).
  • ⚡ st.link_button now supports an on_click callback that triggers a rerun before navigating (#14116, #7453).
  • 📁 st.file_uploader and st.chat_input now accept file type shortcuts like "image", "audio", "video", and "document" (#14140).
  • 📏 st.chat_input has a new height parameter to control the initial height of the text area (#14165, #10724).
  • ✨ Alert elements (st.info, st.warning, st.error, st.success) now automatically extract a leading Material icon from the message body and display it as the alert icon (#14173, #10892).
  • 🪄 Streaming markdown now auto-completes incomplete syntax (e.g., unclosed bold, links, or code blocks) during streaming for a cleaner reading experience (#13939).
  • 🏷 st.pills and st.segmented_control now have a required parameter to enforce that at least one option is always selected (#14414, #9870).
  • 🔄 st.container has a new autoscroll parameter that automatically scrolls to the bottom as new content is added (#14502, #8836).
  • 🧩 st.tabs, st.expander, and st.popover now preserve their open/closed state across reruns (#14332, #14356).
  • 🛠 Static files served via st.static/ now use native content types instead of a generic fallback (#14090).
  • 🎥 Media elements now support relative static file serving URLs (e.g., /app/static/video.mp4) (#14317, #12104).
  • 🧪 st.file_uploader is now supported in AppTest for programmatic testing of file upload flows (#14341, #8093).
  • 🔧 Widget state duplication warnings are now logged to the console instead of displayed in the app UI (#14141).
  • 📦 BidiComponentResult has been renamed to ComponentResult in the custom components v2 API (#14253).
  • ⚙ The _stcore/metrics endpoint is now fully OpenMetrics-compliant (#14538).

Other Changes

  • 🐛 Bug fix: Streamlit can now run with Python optimization flags (-O / -OO) (#14171, #14155).
  • 🦋 Bug fix: Reduced false-positive file change detections on Windows by adding a stability check to the file watcher (#14174, #13954).
  • 🪲 Bug fix: st.text_area with height="content" now correctly auto-sizes to fit content (#14228, #14222).
  • 🐜 Bug fix: Stale anchor links are no longer preserved when clearing transient nodes (#14251, #14249).
  • 🐝 Bug fix: BidiComponentManager is now properly initialized in AppTest mock runtime (#14301, #14274). Thanks, tysoncung!
  • 🐞 Bug fix: Streamlit is now compatible with Python 3.14's PEP 649 deferred annotation evaluation (#14327, #14324).
  • 🕷️ Bug fix: Tooltips on selected st.multiselect options are now restored (#14353, #14351).
  • 🪳 Bug fix: server.port is now correctly updated after binding to port 0 (#14372, #11308). Thanks, joanaarnauth!
  • 🪰 Bug fix: Bound query params are now correctly restored in the URL when navigating in multi-page apps (#14374, #14350).
  • 🦠 Bug fix: Restored the reactJsonViewCompat shim for the local dev server (#14391).
  • 🦟 Bug fix: st.exception links no longer overflow their container at small viewport widths (#14417, #12870).
  • 🦂 Bug fix: Headings inside horizontal containers (st.columns) no longer have extra top padding (#14419, #12434).
  • 🦗 Bug fix: Programmatic dataframe selections now return AttributeDictionary for consistent dot-notation access (#14455, #14454).
  • 🕸️ Bug fix: Streaming markdown with color directives no longer shows rendering artifacts (#14468, #14460).
  • 🐌 Bug fix: The session_duration metric is now OpenMetrics-compliant (#14476, #14432).
  • 🦎 Bug fix: The main menu now has a visible border in dark mode (#14529).

Version 1.55.0

Release date: March 3, 2026

Highlights

  • 🍿 Introducing dynamic containers: st.tabs, st.popover, and st.expander can rerun the app when they are opened or closed by setting the on_change parameter. If a key is also provided, you can programmatically open and close them, too.
  • 🖇️ Announcing widget binding! Most non-trigger widgets have a bind parameter to simplify syncing widget state with query parameters.

Notable Changes

  • 🔗 st.image has a link parameter to make images clickable with HTTP/HTTPS URLs (#14139, #9836).
  • 🥷 st.Page has a visibility parameter that lets you hide pages in the navigation menu while keeping them routable (#13905, #10738).
  • 🎨 Markdown supports arbitrary CSS colors for text foreground and background (#14041, #7808).
  • 📐 st.metric has a delta_description parameter to display descriptive text next to delta values (#13848, #13690).
  • 📏 You can configure the font weight and size for st.metric with the new metricValueFontWeight and metricValueFontSize configuration options (#13550, #12300). Thanks, kagawa0710!
  • 🏓 st.table has height and width parameters (#13850, #10775, #10820).
  • 📈 st.altair_chart and st.vega_lite_chart support selections on multi-view charts (#13591, #8643).
  • 🔑 To prevent widgets from resetting when you change a parameter, widgets are transitioning to an identity based only on their keys (if provided). The following widgets use only their key for their identity:
  • 📂 st.markdown accepts width="auto" to adapt its default behavior depending on the flex layout of its container (#13841).
  • 🌐 Added a new client.allowedOrigins config option to let you customize which origins can send cross-origin postMessage (#13829, #6389).

Other Changes

  • 🖋️ Page titles in st.Page and section labels in st.navigation support Markdown (#14053, #14010, #11771).
  • 🧹 Common block elements in widget labels are auto-escaped for convenience (#13887, #7359).
  • 🏄‍♂️ st.multiselect lets users select all options or all currently filtered options with a single click (#13795, #4714).
  • 💅 Improved the design of st.multiselect and st.selectbox (#13004). Thanks, rishi-kumar0612!
  • ‼️ All widget drop-downs were restyled for consistency (#13796, #13797, #13798).
  • ↔️ For better accessibility, st.tabs displays navigation arrows when the tabs overflow their container horizontally (#13987, #5552).
  • 📝 The app menu was redesigned (#14101):
    • Improved accessibility (#13878, #14131).
    • Added a copy button for the Streamlit version (#13791).
    • Removed the settings menu, surfacing the theme selector and rerun settings in the main menu (#13937, #13988, #14048).
  • 🔍 Improved streamlit config show output to better distinguish theme value sources (#13761).
  • ♥️ To improve behavior in hosted environments, the Streamlit server acknowledges client heartbeats (#13810).
  • 🔣 Extended sprintf to support , as a thousands separator in NumberColumn, ProgressColumn, st.number_input, st.slider, and st.metric (#13284, #1301).
  • ⬆️ Added support for cachetools 7.x (#13839, #13801).
  • ☠️ Added a deprecation notice to SnowparkConnection for better visibility (#14125).
  • 🦀 Bug fix: st.spinner avoids a race condition when used right before a cache miss (#13849, #13634).
  • 🦎 Bug fix: st.date_input values are normalized in Session State to prevent a type error (#14123, #14109).
  • 🐌 Bug fix: st.metric with sparklines display correctly in horizontal flex containers (#14110, #13785).
  • 🕸️ Bug fix: SQLConnection.query() caches results at the instance level instead of the class level (#14094, #14077).
  • 🦗 Bug fix: st.segmented_control has consistent border styling on hover (#14067, #12802).
  • 🦂 Bug fix: st.date_input and st.datetime_input remove validation marks when they are cleared (#14066, #14052).
  • 🦟 Bug fix: Fixed a rendering regression for vconcat charts in Altair with faceted children (#14065, #14050).
  • 🦠 Bug fix: st.Page raised an exception if it's passed a URL path of only slashes (#14005, #13952). Thanks, nileshhadalgi016!
  • 🪰 Bug fix: The code block copy button was moved into a toolbar to prevent text overlap (#14024, #12958).
  • 🪳 Bug fix: st.tabs retain their state when rendered after a transitional element like st.spinner (#14023, #14018).
  • 🕷️ Bug fix: Treemap and sunburst Plotly charts support selections (#13935, #9001).
  • 🐞 Bug fix: Fixed a width regression for layered vconcat charts in Altair (#13980, #13974).
  • 🐝 Bug fix: st.multiselect raises an exception when max_selections isn't positive (#13966, #13965).
  • 🐜 Bug fix: When a user adds a row to st.data_editor, all columns, including hidden ones, are initialized (#13916, #13915).
  • 🪲 Bug fix: st.select_slider doesn't apply its format function twice in AppTest (#13837, #13832).
  • 🐛 Bug fix: Content in collapsed expanders is not included in page search (#13818).

Version 1.54.0

Release date: February 4, 2026

Notable Changes

  • 🎨 The color parameter of st.area_chart, st.bar_chart, st.line_chart, and st.scatter_chart supports the basic color palette which can be configured with theming (#13739, #12694).
  • ☯️ You can use the new theme.chartDivergingColors to set default diverging colors for Plotly, Altair, and Vega-Lite charts.
  • 🔗 You can configure the display of error help links with a new configuration option, client.showErrorLinks (#13472, #11238). Thanks, karubian!
  • 😃 st.logo supports Material icons and emojis (#13416). Thanks, rahuld109!
  • 🥷 To prevent widgets from resetting when you change a parameter, widgets are transitioning to an identity based only on their keys (if provided). The following widgets use only their key for their identity:
    • st.dataframe (with selections)
    • st.area_chart
    • st.bar_chart
    • st.line_chart
    • st.scatter_chart
    • st.altair_chart
    • st.vegalite_chart
    • st.pydeck_chart
    • st.date_input
    • st.datetime_input
    • st.radio
    • st.select_slider
  • 👆 ListColumn and MultiselectColumn let users select the text of their pills for copying (#13663).
  • 👻 st.experimental_get_query_params and st.experimental_set_query_params have been removed. Use st.query_params instead.
  • ☠️ st.experimental_user has been removed. Use st.user instead.

Other Changes

  • 👽 The warning about the proposed removal of .add_rows() shows in the browser. Please leave feedback (#13063).
  • 🦎 When a .streamlit/config.toml file is created after a Streamlit app is running, the file watcher will recognize it without restarting the Streamlit server (#13625, #11296).
  • 🔐 Bug fix: Path security validation improves protection against Server-Side Request Forgery (SSRF) and path traversal vulnerabilities (#13733).
  • 🕸️ Bug fix: Wildcard URLs display as localhost in the browser URL and console output (#13720, #13712).
  • 🦗 Bug fix: Modals and drop-down menus don't collapse the sidebar (#13653).
  • 🦂 Bug fix: st.bar_chart doesn't raise a KeyError when sorting melted data (#13695).
  • 🦟 Bug fix: st.multiselect and st.selectbox don't clear state when a custom class object is selected (#13648, #13646).
  • 🦠 Bug fix: Transient nodes used for spinners will correctly anchor themselves in the Streamlit DOM to avoid an empty delta path (#13674).
  • 🪰 Bug fix: Snowflake connections will re-initialize if closed (#13665).
  • 🪳 Bug fix: Nested containers under a spinner don't raise a Bad delta path index error (#13659, #13658).
  • 🕷️ Bug fix: SnowflakeConnection.query() correctly passes the params argument to caching (#13652, #13644).
  • 🐞 Bug fix: client.toolbarMode="viewer" correctly hides developer options from the settings menu (#13623).
  • 🐝 Bug fix: When using the experimental Starlette configuration, Streamlit auth can log users out of your identity provider and surface user tokens, consistent with recent updates (#13571).
  • 🐜 Bug fix: Streamlit will defensively not load packaged components with missing or invalid component names in their manifests (#13612).
  • 🪲 Bug fix: The width of file chips in st.chat_input was increased to reduce filename truncation (#13589).
  • 🐛 Bug fix: st.bar_chart doesn't raise an error about y-axis minimum and maximum when the bars have all the same value (#13590, #13584).

Version 1.53.0

Release date: January 14, 2026

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!

Notable Changes

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).
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