Release notes

This page lists highlights, bug fixes, and known issues for the latest release of Streamlit. If you're looking for information about nightly releases or experimental features, see Pre-release features.

Upgrade Streamlit

pip install --upgrade streamlit

Version 1.65.0 (latest)

Release date: October 2, 2026

Highlights

• 🍿 Announcing side drawers for st.dialog: set position="left" or position="right" to open a dialog as a full-height drawer (#16863, #8186).
• 🖼 Introducing the alt parameter, so you can give images, media, charts, maps, and data elements an accessible name for screen readers:
  • st.image and st.pyplot (#17137).
  • st.audio, st.video, and st.pdf (#16568, #17118).
  • st.altair_chart, st.vega_lite_chart, and the built-in st.line_chart, st.bar_chart, st.area_chart, and st.scatter_chart (#17041, #17069).
  • st.echarts_chart, st.plotly_chart, st.graphviz_chart, and st.mermaid_chart (#17080, #17081, #17085, #17096).
  • st.map and st.pydeck_chart (#17086).
  • st.dataframe, st.data_editor, and st.table (#17125, #17095).
  • st.iframe (#17040, #16607).

Notable Changes

• 🎛 The on_change="ignore" mode reaches eight more widgets, so a new value updates the widget and any bound query parameter without a rerun:
  • st.checkbox and st.toggle (#16960).
  • st.radio (#16951).
  • st.multiselect (#16908).
  • st.text_area (#17002).
  • st.date_input (#17064).
  • st.time_input (#17159).
  • st.file_uploader (#17172).
• 🛑 st.text_input and st.number_input have a new required parameter that blocks empty values from being committed or submitted in a form (#16956, #17023, #13497).
• 🔗 st.expander and st.tabs support bind="query-params", so you can share a URL that keeps an expander open or a tab selected (#15462, #16988).
• 📋 You can paste a full date range into the start field of a range-mode st.date_input to set both dates at once (#17004).
• 🌈 The new theme.dataframeHeaderTextColor config option sets the header text color for st.dataframe and st.data_editor (#17181, #16478).
• 🧪 AppTest.query_params returns single values as strings instead of one-item lists, so assertions like at.query_params["x"] == ["1"] need to become == "1" (#17191).

Other Changes

• 💡 Mistyped or removed st.* commands raise an AttributeError that suggests the correct name or replacement (#16912).
• 💬 Session State mutation errors show the exact st.session_state[key] expression and how to fix it (#17016).
• 📦 Streamlit can be installed alongside websockets 17.x (#17113, #17097).
• 🐛 Bug fix: st.query_params follows the URL when browser back/forward changes only the query string on the same page (#16989, #13963).
• 🦋 Bug fix: Widgets bound to query parameters restore their values from the URL on browser back/forward (#16998, #13853).
• 🪲 Bug fix: Ctrl+C and SIGTERM stop the server even when an app script is stuck in a loop (#17022, #2975).
• 🐜 Bug fix: Dialogs opened from a fragment stay responsive when that fragment reruns (#17039, #17011).
• 🐝 Bug fix: Keyed widgets that first appear after a Session State write show the stored value instead of their default (#17106, #17093).
• 🐞 Bug fix: st.data_editor keeps leading decimals, so typing .07 commits 0.07 instead of 7 (#16920, #16909).
• 🕷️ Bug fix: Clearing a dataframe selection through Session State a second time also unchecks the rows in the grid (#17224, #17195).
• 🪳 Bug fix: LinkColumn shows the :material/open_in_new: icon in narrow columns instead of truncated text (#17090, #14782).
• 🪰 Bug fix: st.chat_input placed in st.bottom no longer triggers scroll-to-bottom for the app (#16980, #16977).
• 🦠 Bug fix: Pressing Enter in a form submits with the correct button when the first submit button is disabled (#17171).
• 🦟 Bug fix: Synchronous st.cache_data and st.cache_resource functions that return an awaitable raise a clear error instead of a confusing serialization failure (#16921).
• 🦂 Bug fix: st.image accepts the removed use_column_width parameter with a warning instead of raising a TypeError (#16999).
• 🦗 Bug fix: st.image and st.pyplot no longer use list indexes as alt text, and st.image links with unsafe URL schemes render as plain images (#17136).
• 🕸️ Bug fix: Element toolbar buttons include the element's alt text in their accessible names and have a 24px minimum target size (#17211, #17225, #16148, #17127).
• 🐌 Bug fix: Range-mode st.date_input validation errors say the date is outside the allowed range instead of naming the wrong field (#16983).
• 🦎 Bug fix: Range-mode st.date_input cancels a half-finished calendar selection when the app changes its value (#16984).
• 🦀 Bug fix: st.date_input clears partly typed dates when a clear_on_submit form resets (#16985).
• 👽 Bug fix: st.date_input and st.datetime_input keep their clear and error icons visible in narrow layouts (#16986).
• 👻 Bug fix: Unchecked st.checkbox and st.radio options show a hover state again, matching secondary buttons (#17034, #17035).
• 🐛 Bug fix: A custom theme.borderColor no longer fills the off track of st.toggle or the main menu's auto-rerun toggle (#17079, #17083).
• 🦋 Bug fix: The visible sidebar border gets stronger on hover when theme.showSidebarBorder is enabled (#17071, #12803).
• 🪲 Bug fix: Keyboard events without a key no longer throw errors in global hotkeys or non-dismissible dialogs (#17105, #17111, #17082, #17107).
• 🐜 Bug fix: CacheReplayClosureError names the layout block instead of showing a $THING placeholder (#17065).
• 🐝 Bug fix: AppTest form widgets commit their values only when the form is submitted, matching the browser (#16972).
• 🐞 Bug fix: AppTest.get() accepts the same element names as AppTest attributes, such as datetime_input and pills (#17000).
• 🕷️ Bug fix: AppTest lists st.expander elements with an icon under at.expander instead of at.status (#17162).
• 🪳 Bug fix: AppTest supports st.space through at.space (#17208).

Older versions of Streamlit

• 2026 release notes
• 2025 release notes
• 2024 release notes
• 2023 release notes
• 2022 release notes
• 2021 release notes
• 2020 release notes
• 2019 release notes