2022 release notes

This page contains release notes for Streamlit versions released in 2022. For the latest version of Streamlit, see Release notes.

Version 1.16.0

Release date: December 14, 2022

Highlights

• 👩‍🎨 Introducing a new Streamlit theme for Altair, Plotly, and Vega-Lite charts! Check out our blog post for more information.
• 🎨 Streamlit now supports colored text in all commands that accept Markdown, including st.markdown, st.header, and more. Learn more in our documentation.

Notable Changes

• 🔁 Functions cached with st.experimental_memo or st.experimental_singleton can contain Streamlit media elements and forms.
• ⛄ All Streamlit commands that accept pandas DataFrames as input also support Snowpark and PySpark DataFrames.
• 🏷 st.checkbox and st.metric can customize how to hide their labels with the label_visibility parameter.

Other Changes

• 🗺️ st.map improvements: support for upper case columns and better exception messages (#5679, #5792).
• 🐞 Bug fix: st.plotly_chart respects the figure's height attribute and the use_container_width parameter (#5779).
• 🪲 Bug fix: all commands with the icon parameter such as st.error, st.warning, etc, can contain emojis with variant selectors (#5583).
• 🐝 Bug fix: prevent st.camera_input from jittering when resizing the browser window (#5661).
• 🐜 Bug fix: update exception layout to avoid overflow of stack traces (#5700).

Version 1.15.0

Release date: November 17, 2022

Notable Changes

• 💅 Widget labels can contain inline Markdown. See our docs and demo app for more info.
• 🎵 st.audio now supports playing audio data passed in as NumPy arrays with the keyword-only sample_rate parameter.
• 🔁 Functions cached with st.experimental_memo or st.experimental_singleton can contain Streamlit widgets using the experimental_allow_widgets parameter. This allows caching checkboxes, sliders, radio buttons, and more!

Other Changes

• 👩‍🎨 Design tweak to prevent jittering in sliders (#5612).
• 🐛 Bug fix: links in headers are red, not blue (#5609).
• 🐞 Bug fix: properly resize Plotly charts when exiting fullscreen (#5645).
• 🐝: Bug fix: don't accidentally trigger st.balloons and st.snow (#5401).

Version 1.14.0

Release date: October 27, 2022

Highlights

• 🎨 st.button and st.form_submit_button support designating buttons as "primary" (for additional emphasis) or "secondary" (for normal buttons) with the type keyword-only parameter.

Notable Changes

• 🤏 st.multiselect has a keyword-only max_selections parameter to limit the number of options that can be selected at a time.
• 📄 st.form_submit_button now has the disabled parameter that removes interactivity.

Other Changes

• 🏓 st.dataframe and st.table accept categorical intervals as input (#5395).
• ⚡ Performance improvements to Plotly charts (#5542).
• 🪲 Bug fix: st.download_button supports non-latin1 characters in filenames (#5465).
• 🐞 Bug fix: Allow st.image to render a local GIF as a GIF, not as a static PNG (#5438).
• 📱 Design tweaks to the sidebar in multipage apps (#5538, #5445, #5559).
• 📊 Improvements to the axis configuration for built-in charts (#5412).
• 🔧 Memo and singleton improvements: support text values for show_spinner, use datetime.timedelta objects as ttl parameter value, properly hash PIL images and Enum classes, show better error messages when returning unevaluated dataframes (#5447, #5413, #5504, #5426, #5515).
• 🔍 Zoom buttons in maps created with st.map and st.pydeck_chart use light or dark style based on the app's theme (#5479).
• 🗜 Websocket headers from the current session's incoming WebSocket request can be obtained from a new "internal" (i.e.: subject to change without deprecation) API (#5457).
• 📝 Improve the text that gets printed when you first install and use Streamlit (#5473).

Version 1.13.0

Release date: September 22, 2022

Notable Changes

• 🏷 Widgets can customize how to hide their labels with the label_visibility parameter.
• 🔍 st.map adds zoom buttons to the map by default.
• ↔️ st.dataframe supports the use_container_width parameter to stretch across the full container width.
• 🪄 Improvements to st.dataframe sizing: Column width calculation respects column headers, supports double click between column headers to autosize, better fullscreen support, and fixes the issue with the width parameter.

Other Changes

• ⌨️ st.time_input allows for keyboard-only input (#5194).
• 💿 st.memo will warn the user when using ttl and persist keyword argument together (#5032).
• 🔢 st.number_input returns consistent type after rerun (#5359).
• 🚒 st.sidebar UI fixes including a fix for scrollbars in Firefox browsers (#5157, #5324).
• 👩‍💻 Improvements to usage metrics to guide API development.
• ✍️ More type hints! (#5191, #5192, #5242, #5243, #5244, #5245, #5246) Thanks harahu!

Version 1.12.0

Release date: August 11, 2022

Highlights

• 📊 Built-in charts (e.g. st.line_chart) get a brand-new look and parameters x and y! Check out our blog post for more information.

Notable Changes

• ⏯ Functions cached with st.experimental_memo or st.experimental_singleton can now contain static st commands. This allows caching text, charts, dataframes, and more!
• ↔️ The sidebar is now resizable via drag and drop.
• ☎️ st.info, st.success, st.error, and st.warning got a redesign and have a new keyword-only parameter: icon.

Other Changes

• 🎚️ st.select_slider correctly handles all floats now (#4973, #4978).
• 🔢 st.multi_select can take values from enums (#4987).
• 🍊 st.slider range values can now be set through st.session_state (#5007).
• 🎨 st.progress got a redesign (#5011, #5086).
• 🔘 st.radio better deals with list-like dataframes (#5021).
• 🧞‍♂️ st.cache properly handles JSON files now (#5023).
• ⚓️ Headers render markdown now when the anchor parameter is set (#5038).
• 🗻 st.image can now load SVGs from Inkscape (#5040).
• 🗺️ st.map and st.pydeck_chart use light or dark style based on the app's theme (#5074, #5108).
• 🎈 Clicks on elements below st.balloons and st.snow don't get blocked anymore (#5098).
• 🔝 Embedded apps have lower top padding (#5111).
• 💅 Adjusted padding and alignment for widgets, charts, and dataframes (#4995, #5061, #5081).
• ✍️ More type hints! (#4926, #4932, #4933)

Version 1.11.0

Release date: July 14, 2022

Highlights

• 🗂 Introducing st.tabs to have tab containers in your app. See our documentation on how to use this feature.

Notable Changes

• ℹ️ st.metric supports tooltips with the help keyword parameter.
• 🚇 st.columns supports setting the gap size between columns with the gap keyword parameter.

Other Changes

• 💅 Design tweaks to st.selectbox, st.expander, st.spinner (#4801).
• 📱 The sidebar will close when users select a page from the navigation menu on mobile devices (#4851).
• 🧠 st.memo supports dataclasses! (#4850)
• 🏎 Bug fix for a race condition that destroyed widget state with rapid interaction (#4882).
• 🏓 st.table presents overflowing content to be scrollable when placed inside columns and expanders (#4934).
• 🐍 Types: More updated type annotations across Streamlit! (#4808, #4809, #4856)

Version 1.10.0

Release date: June 2, 2022

Highlights

• 📖 Introducing native support for multipage apps! Check out our blog post and try out our new streamlit hello.

Notable Changes

• ✨ st.dataframe has been redesigned.
• 🔘 st.radio has a horizontal keyword-only parameter to display options horizontally.
• ⚠️ Streamlit Community Cloud will support richer exception formatting.
• 🏂 Get user information on private apps using st.experimental_user.

Other Changes

• 📊 Upgraded Vega-Lite library to support even more interactive charting improvements. See their release notes to find out more. (#4751).
• 📈 st.vega_lite_chart will respond to updates, particularly in response to input widgets (#4736).
• 💬 st.markdown with long text will always wrap (#4696).
• 📦 Support for PDM (#4724).
• ✍️ Types: Updated type annotations across Streamlit! (#4679, #4680, #4681, #4682, #4683, #4684, #4685, #4686, #4687, #4688, #4690, #4703, #4704, #4705, #4706, #4707, #4708, #4710, #4723, #4733).

Version 1.9.0

Release date: May 4, 2022

Notable Changes

• 🪗 st.json now supports a keyword-only argument, expanded on whether the JSON should be expanded by default (defaults to True).
• 🏃‍♀️ More performance improvements from reducing redundant work each script run.

Other Changes

• 🏇 Widgets when disabled is set/unset will maintain its value (#4527).
• 🧪 Experimental feature to increase the speed of reruns using configuration runner.fastReruns. See #4628 for the known issues in enabling this feature.
• 🗺️ DataFrame timestamps support UTC offset (in addition to time zone notation) (#4669).

Version 1.8.0

Release date: March 24, 2022

Notable Changes

• 🏃‍♀️ Dataframes should see performance improvements (#4463).

Other Changes

• 🕰 st.slider handles timezones better by removing timezone conversions on the backend (#4348).
• 👩‍🎨 Design improvements to our header (#4496).

Version 1.7.0

Release date: March 3, 2022

Highlights

• Introducing st.snow, celebrating our acquisition by Snowflake! See more information in our blog post.

Version 1.6.0

Release date: Feb 24, 2022

Other Changes

• 🗜 WebSocket compression is now disabled by default, which will improve CPU and latency performance for large dataframes. You can use the server.enableWebsocketCompression configuration option to re-enable it if you find the increased network traffic more impactful.
• ☑️ 🔘 Radio and checkboxes improve focus on Keyboard navigation (#4308).

Version 1.5.0

Release date: Jan 27, 2022

Notable Changes

• 🌟 Favicon defaults to a PNG to allow for transparency (#4272).
• 🚦 Select Slider Widget now has the disabled parameter that removes interactivity (completing all of our widgets) (#4314).

Other Changes

• 🔤 Improvements to our markdown library to provide better support for HTML (specifically nested HTML) (#4221).
• 📖 Expanders maintain their expanded state better when multiple expanders are present (#4290).
• 🗳 Improved file uploader and camera input to call its on_change handler only when necessary (#4270).

Version 1.4.0

Release date: Jan 13, 2022

Highlights

• 📸 Introducing st.camera_input for uploading images straight from your camera.

Notable Changes

• 🚦 Widgets now have the disabled parameter that removes interactivity.
• 🚮 Clear st.experimental_memo and st.experimental_singleton programmatically by using the clear() method on a cached function.
• 📨 Developers can now configure the maximum size of a message to accommodate larger messages within the Streamlit application. See server.maxMessageSize.
• 🐍 We formally added support for Python 3.10.

Other Changes

• 😵‍💫 Calling str or repr on threading.current_thread() does not cause a RecursionError (#4172).
• 📹 Gracefully stop screencast recording when user removes permission to record (#4180).
• 🌇 Better scale images by using a higher-quality image bilinear resampling algorithm (#4159).

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