2025 release notes

This page contains release notes for Streamlit versions released in 2025. For the latest version of Streamlit, see Release notes.

Version 1.42.0

Release date: February 4, 2025

Highlights

• 👩‍💻 Introducing st.login() and st.logout() to authenticate users with any OpenID Connect provider.

Notable Changes

• ❣️ st.table supports Markdown (#8785, #10088).
• ⏲️ st.spinner can show elapsed time with show_time=True (#6805, #10072).
• 💈 st.image supports Markdown in the caption parameter (#6808, #10075).
• ↕️ st.code has a height parameter (#7418, #10080).
• ↔️ Most charts default to using use_container_width=True (#10064).
• ❄️ SnowflakeConnection was updated to match the current Snowflake API, which changes its handling of keyword arguments in some cases (#10122).
• 🐁 Users can drag and drop dataframe columns to rearrange them (#8796, #10099).

Other Changes

• 📌 Dataframes have column menus for users to sort and pin columns (#10206).
• 🚦 Dataframes support categorical indices (#9647, #10195).
• 🛸 Dataframes show a hover highlight on rows (#8096, #10104).
• ⚠️ When dataframes have cell values that are inconsistent with their configured type, Streamlit shows a tooltip describing the error (#8253, #9899).
• ➰ If there is an existing asyncio event loop when a Streamlit app starts, the app will reuse it instead of creating a new one (#10164). Thanks, DeltaGa!
• 🖼️ Streamlit recognizes pyspark.sql.connect.dataframe.DataFrame objects as dataframes (#9953, #9954). Thanks, OSalama!
• 😃 We've updated emoji validation for new emojis (#10149).
• 🔣 Material Symbols have been updated with the latest icons (#10247).
• 💅 Visual tweaks and improvements (#8705, #9823, #10047, #10048, #10083, #10087, #10225).
• ⭕ st.image displays rounded corners for consistent design (#9999).
• 🎩 Bug fix: Top margin is applied correctly in st.columns (#10265, #10268).
• 💩 Bug fix: react-syntax-highlighter is aliased to prevent rendering errors in st.code (#10231, #10244).
• 🧹 Bug fix: We improved error messages for st.query_params (#10111, #10237).
• 🪱 Bug fix: Linting for st.altair_chart recognizes all Altair chart types (#10202).
• ↗️ Bug fix: st.dataframe supports raw Arrow data (#5606, #10191).
• 🐍 Bug fix: st.navigation and st.page_link work when running in pure Python tests (#10163).
• ☠️ Bug fix: Retries were added to prevent a possible race condition when files are removed while Streamlit is running (#10148).
• 👽 Bug fix: When printing an app, st.logo will only print once (#10165, #10171).
• 🌍 Bug fix: Material icons are marked to prevent translation (#10168, #10174).
• 👻 Bug fix: st.vega_lite_chart correctly caches and updates its data (#6689, #10125).
• 🦀 Bug fix: When a fragment ID is not found, Streamlit logs a warning but doesn't raise an error (#9921, #10130).
• 🦋 Bug fix: The label on st.expander correctly fades when stale (#10085).
• 🦎 Bug fix: st.date_input provides better type hinting for its return value (#9477, #9620). Thanks, pranaybattu!
• 🐌 Bug fix: In dataframes, small float values display their first significant figure instead of displaying as 0 (#10060).
• 🕸️ Bug fix: When rich is installed, errors are only logged once. (#10097).
• 🦗 Bug fix: st.text preserves whitespace (#10055, #10062).
• 🦂 Bug fix: Dataframe width is not ignored when height is changed (#9762, #10036).
• 🦟 Bug fix: Multi index columns correctly handle empty labels (#9749, #10035).
• 🦠 Bug fix: Pinned columns respect column_order in when configured in st.dataframe (#9997, #10034).
• 🪰 Bug fix: Tooltips don't overflow to the left or right (#9288, #9452, #9983).
• 🪳 Bug fix: Disabled feedback widgets correctly show their value (#10030).
• 🕷️ Bug fix: Widgets correctly submit values if a user edits the value and immediately clicks a button (#10007, #10018).
• 🐞 Bug fix: Some MIME types have been hardcoded to protect against browser misconfiguration (#10004, #10010).
• 🐝 Bug fix: Files that unnecessarily inflated Streamlit's installation size were removed (#10008, #10011).
• 🐜 Bug fix: st.date_input gives the correct type hint for the value parameter (#10005, #10006).
• 🪲 Bug fix: st.write passes to st.html when ._repr_html() is present for an object (#9910).
• 🐛 Bug fix: st.html preserves target=_blank if set in an HTML string (#9972, #9994).

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