Release 1.48.0 (#1318)

* Release notes

* Update streamlit.json

* What's new

* Cheat sheet

* Update streamlit.json

* Icon update

* Use shell format for docstring pip install blocks

* Update chat input set value app

Author: sfc-gh-dmatthews

content/develop/quick-references/api-cheat-sheet.md

@@ -5,7 +5,7 @@ slug: /develop/quick-reference/cheat-sheet
 
 # Streamlit API cheat sheet
 
-This is a summary of the docs for the latest version of Streamlit, [v1.47.0](https://pypi.org/project/streamlit/1.47.0/).
+This is a summary of the docs for the latest version of Streamlit, [v1.48.0](https://pypi.org/project/streamlit/1.48.0/).
 
 <Masonry>
 
@@ -392,6 +392,11 @@ elements.line_chart(...)
 st.write("Hello")
 elements.text_input(...)  # Appears above "Hello".
 
+# Horizontal flex
+flex = st.container(horizontal=True)
+flex.button("A")
+flex.button("B")
+
 st.help(pandas.DataFrame)
 st.get_option(key)
 st.set_option(key, value)

content/develop/quick-references/release-notes/2025.md

@@ -9,6 +9,45 @@ keywords: changelog, release notes, version history
 
 This page contains release notes for Streamlit versions released in 2025. For the latest version of Streamlit, see [Release notes](/develop/quick-reference/release-notes).
 
+## **Version 1.48.0**
+
+_Release date: August 5, 2025_
+
+**Highlights**
+
+- 💪 Announcing horizontal flex [containers](/develop/api-reference/layout/st.container)! Configure the alignment, direction, and gap of containers to create dynamic layouts.
+
+**Notable Changes**
+
+- 🪵 [`st.logout`](/develop/api-reference/user/st.logout) will log the user out of their identity provider if the server metadata includes `end_session_endpoint` ([#11901](https://github.com/streamlit/streamlit/pull/11901), [#11900](https://github.com/streamlit/streamlit/issues/11900)). Thanks, [velochy](https://github.com/velochy)!
+- 💬 You can configure the dismissibility of [`st.dialog`](/develop/api-reference/execution-flow/st.dialog) and set callback functions ([#9504](https://github.com/streamlit/streamlit/pull/9504), [#12034](https://github.com/streamlit/streamlit/pull/12034)). Thanks, [souvikmaji](https://github.com/souvikmaji)!
+- ↔️ You can set a `width` parameter for [buttons](/develop/api-reference/widgets/st.button) and [popovers](/develop/api-reference/layout/st.popover).
+- 🧑‍💻 [`codeFontWeight`](/develop/api-reference/configuration/config.toml#sidebar-theme) can be configured separately in the sidebar.
+- 📶 You can configure the WebSocket ping interval with the [`server.websocketPingInterval`](/develop/api-reference/configuration/config.toml#server) configuration option ([#12117](https://github.com/streamlit/streamlit/pull/12117), [#12108](https://github.com/streamlit/streamlit/issues/12108)).
+
+**Other Changes**
+
+- 🌀 The spinner design was unified across Streamlit commands ([#12031](https://github.com/streamlit/streamlit/pull/12031)).
+- 💅 Design and style tweaks ([#12032](https://github.com/streamlit/streamlit/pull/12032), [#11989](https://github.com/streamlit/streamlit/pull/11989), [#11986](https://github.com/streamlit/streamlit/pull/11986), [#11999](https://github.com/streamlit/streamlit/pull/11999), [#12015](https://github.com/streamlit/streamlit/pull/12015), [#11995](https://github.com/streamlit/streamlit/pull/11995), [#11981](https://github.com/streamlit/streamlit/pull/11981), [#11964](https://github.com/streamlit/streamlit/pull/11964)).
+- 🔄 Error logic and logging was improved to reduce confusion from `asyncio` runtime errors when unrelated errors are raised ([#12008](https://github.com/streamlit/streamlit/pull/12008)).
+- 🪧 Dataframe column menus include an icon to show the column type and a button to copy the column name ([#11303](https://github.com/streamlit/streamlit/pull/11303)).
+- 💽 For convenience, there are additional "extras" installation options ([#11760](https://github.com/streamlit/streamlit/pull/11760), [#8233](https://github.com/streamlit/streamlit/issues/8233)).
+- 📁 Additional checks are performed to validate the extension of uploaded files, but app developers are still responsible for checking and handling the security of uploaded files ([#11884](https://github.com/streamlit/streamlit/pull/11884), [#11883](https://github.com/streamlit/streamlit/issues/11883)).
+- 🔘 Button group widgets are identified by their command name in error messages ([#11769](https://github.com/streamlit/streamlit/pull/11769), [#11753](https://github.com/streamlit/streamlit/issues/11753)). Thanks, [bajajku](https://github.com/bajajku)!
+- ⚔️ For `st.snow`, `st.balloons`, chat avatars, and media elements, the `crossorigin` property can be configured by hosts ([#12087](https://github.com/streamlit/streamlit/pull/12087), [#11948](https://github.com/streamlit/streamlit/pull/11948)).
+- 🦗 Bug fix: Ctrl+C will stop a Streamlit server in Windows, even if there is no active session ([#12049](https://github.com/streamlit/streamlit/pull/12049), [#6855](https://github.com/streamlit/streamlit/issues/6855)).
+- 🦂 Bug fix: `st.line_chart` uses the column order in the chart data instead of reordering them alphabetically ([#12092](https://github.com/streamlit/streamlit/pull/12092), [#12071](https://github.com/streamlit/streamlit/issues/12071)).
+- 🦟 Bug fix: Menu items set in `st.set_page_config` are not hidden when `client.toolbarMode` is set to `"minimal"` ([#12091](https://github.com/streamlit/streamlit/pull/12091), [#12083](https://github.com/streamlit/streamlit/issues/12083)).
+- 🦠 Bug fix: `theme.codeFontWeight` does not interfere with bold inline code ([#12074](https://github.com/streamlit/streamlit/pull/12074), [#11976](https://github.com/streamlit/streamlit/issues/11976)).
+- 🪰 Bug fix: To allow fractional pixel values, heading font sizes in theming configuration aren't rounded ([#12077](https://github.com/streamlit/streamlit/pull/12077), [#11963](https://github.com/streamlit/streamlit/issues/11963)).
+- 🪳 Bug fix: Altair 5.4.0 and 5.4.1 have been excluded to prevent an upstream bug with reading dataframes ([#12066](https://github.com/streamlit/streamlit/pull/12066), [#12064](https://github.com/streamlit/streamlit/issues/12064)).
+- 🕷️ Bug fix: Dataframe scrollbars have been tweaked to avoid sizing problems ([#11936](https://github.com/streamlit/streamlit/pull/11936), [#11921](https://github.com/streamlit/streamlit/issues/11921), [#12053](https://github.com/streamlit/streamlit/issues/12053), [#11985](https://github.com/streamlit/streamlit/issues/11985)).
+- 🐞 Bug fix: Linting accepts lists in addition to tuples for callback arguments in widgets ([#12039](https://github.com/streamlit/streamlit/pull/12039)).
+- 🐝 Bug fix: To fix a deprecation warning, Altair theme syntax was updated ([#12050](https://github.com/streamlit/streamlit/pull/12050)).
+- 🐜 Bug fix: `st.navigation` does not hide the menu when a single section is used with `position="top"` ([#12025](https://github.com/streamlit/streamlit/pull/12025), [#12029](https://github.com/streamlit/streamlit/issues/12029)).
+- 🪲 Bug fix: The sidebar state does not reset when the window is resized ([#12024](https://github.com/streamlit/streamlit/pull/12024), [#12016](https://github.com/streamlit/streamlit/issues/12016)).
+- 🐛 Bug fix: `st.pills` and `st.segmented_control` don't raise unintended `StreamlitDuplicateElementId` errors ([#11982](https://github.com/streamlit/streamlit/pull/11982), [#11975](https://github.com/streamlit/streamlit/issues/11975)).
+
 ## **Version 1.47.0**
 
 _Release date: July 16, 2025_