Streamlit 1.59.0

What's Changed

Breaking Changes 🛠

• [chore] Make /_stcore/metrics memory stats cheap by default by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15472
• [chore] Remove deprecated Snowpark connection by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15784

New Features 🎉

• [feature] Add ButtonColumn to st.column_config by @lukasmasuch in https://github.com/streamlit/streamlit/pull/14544
• st.set_page_config - Add "locked" option for initial_sidebar_state by @mayagbarnes in https://github.com/streamlit/streamlit/pull/15459
• [feature] Add list support to programmatic secrets by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15491
• [feature] Recommend installing skills on app startup by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15437
• [feature] Add AppTest support for download_button and image by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15528
• [feature] Add column statistics submenu to st.dataframe by @lukasmasuch in https://github.com/streamlit/streamlit/pull/14307
• [feature] Add streamlit docs <command> lookup by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15547
• [feat] Add MarkdownColumn for st.dataframe and st.data_editor by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13931
• [feature] Add App.run() to launch via python app.py or uv run app.py by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15563
• [feature] Support pasting files into st.chat_input by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15558
• [feature] Add server.xsrfCookieSameSite config option by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15634
• [feat] Add mermaid diagram support in st.markdown by @lukasmasuch in https://github.com/streamlit/streamlit/pull/14022
• [feature] Support OpenAI Responses API streams in st.write_stream by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15559
• [fragmentOutsideWrites][feature] Reset outside wrappers across fragment reruns by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15620
• [fragmentOutsideWrites][feature] Allow fragments to write into outside containers by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15623
• [feature] Add per-user analytics on metrics endpoint by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15557
• [feature] Add skeleton element for loading placeholder UI by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15169
• [feat] Add anchors parameter to st.markdown by @sfc-gh-dbyttow in https://github.com/streamlit/streamlit/pull/15722
• [feature] Add resolution parameter to st.camera_input by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15766
• [feature] Add in-app install-skills nudge toast by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/15473
• [feature] Add submit_mode parameter to st.chat_input by @lukasmasuch in https://github.com/streamlit/streamlit/pull/14344
• [feature] Add persist_state widget parameter by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15645

Bug Fixes 🐛

• [fix] Metrics endpoint error with SQLAlchemy connections by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15334
• [fix] TypeError in _run_with_thread_state when using @st.fragment(run_every=...) by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15376
• [fix] P-mode PIL palette hashing to prevent hash collisions by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15397
• [fix] Use named Snowflake connection from config file by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15382
• [fix] Bind IPv6 dual-stack wildcard for default server address by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15400
• [fix] Clear stale and invalid auth cookies on login by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15420
• Fix: sync widgetMgr to fix tab.open lazy loading by @mayagbarnes in https://github.com/streamlit/streamlit/pull/15460
• [fix] Discover installed CCv2 components in AppTest by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15488
• [fix] Prevent resetting page title on rerun by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15527
• [fix] Accept formatted labels in AppTest format_func widgets by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15564
• Fix: st.pills & st.segmented_control callback by @mayagbarnes in https://github.com/streamlit/streamlit/pull/15522
• [fix] Default to polling file watcher in WSL by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15562
• [fix] Prevent "Missing Submit Button" flash on app load by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15561
• [fix] Explain multi-replica cause in invalid session upload error by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15635
• [fix] Keep selectbox selection when format_func depends on object identity by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15639
• [fix] Prevent ESC from clearing st.multiselect selection by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15646
• [fix] Validate StreamlitPage source matches registered page (#10572) by @sfc-gh-dbyttow in https://github.com/streamlit/streamlit/pull/15721
• [fix] Ignore dataframe Ctrl+F shortcut when search is disabled by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15764
• [fix] Prevent line wrapping in dataframe column menu by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15772

Other Changes

• [chore] Update emojis/material icons by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15396
• [chore] Release v1.58.0 by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15361
• [chore] Update emojis/material icons by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15475
• [perf] VegaLiteChart: Use Vega's native resize API for faster resizing by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15302
• [docs] Add parallel fragment guidance to developing-with-streamlit skill by @sfc-gh-lwilby-1 in https://github.com/streamlit/streamlit/pull/15503
• [docs] Remove experimental warning from App docstring by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15536
• [chore] Redesign pagination widget selected state styling by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15550
• [chore] Update emojis/material icons by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15587
• [chore] Remove deprecated st.bokeh_chart command by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15636
• [chore] Update emojis/material icons by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15665
• [docs] Add API reference to developing-with-streamlit skill by @lukasmasuch in https://github.com/streamlit/streamlit/pull/15539
• Baseweb removal fixes by @mayagbarnes in https://github.com/streamlit/streamlit/pull/15737
• [chore] Update emojis/material icons by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/15758

New Contributors

• @sfc-gh-lmasuch made their first contribution in https://github.com/streamlit/streamlit/pull/15633
• @sfc-gh-dbyttow made their first contribution in https://github.com/streamlit/streamlit/pull/15721
• @HXRIkumar made their first contribution in https://github.com/streamlit/streamlit/pull/15441

Full Changelog: https://github.com/streamlit/streamlit/compare/1.58.0...1.59.0