What's Changed

Breaking Changes 🛠

• Remove native bokeh charts support by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12964
• Add deprecation note to add_rows command by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13080
• Deprecate kwargs support for st.vega_lite_chart by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13141

New Features 🎉

• [feature] support width="content" on st.container by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12848
• [AdvancedLayouts] Add height="content" to st.dataframe and st.data_editor. by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12875
• [AdvancedLayouts] Add height to st.plotly_chart by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12593
• [feat] Add accept_audio parameter to enable audio recording in chat_input by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/12836
• [feat] Add help argument and tooltip to st.badge by @marcolanfranchi in https://github.com/streamlit/streamlit/pull/12897
• [feat] Add frontend for executing JS in st.html by @sfc-gh-bnisco in https://github.com/streamlit/streamlit/pull/12918
• Use key as main identity for st.file_uploader widget by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12955
• Use key as main identity for st.camera_input widget by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12781
• [feat] Add microphone permission denied error handling to audio components by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/12914
• Implement missing placeholder for st.dataframe by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12968
• Show warning when hiding index in dynamic data editor by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12978
• Add deferred download button by @sfc-gh-aamadhavan in https://github.com/streamlit/streamlit/pull/12942
• [feat][TextAlignment] Adds text alignment parameter to st.text by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/13032
• Add support for setting spinner as icon by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13045
• Add support for Python 3.14 by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12967
• Datetime input by @sfc-gh-aamadhavan in https://github.com/streamlit/streamlit/pull/13029
• Allow configuring delta arrow in st.metric by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12982
• [feat][TextAlignment] add text alignment for heading elements. by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/13034
• Support passing query params to st.switch_page by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13027
• [feat] Add audio_sample_rate parameter to chat_input for customizable recording quality by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/13054
• Add optional uvloop support for better event loop performance by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13047
• Allow configuring keyboard shortcuts on buttons by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12975
• Support passing query params to st.page_link by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13093
• [feat][TextAlignment] Adds text_alignment parameter to markdown elements by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/13036

Bug Fixes 🐛

• [fix] st.text_area negative height calculation by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12891
• Fix MultiselectColumn issue when starting with empty rows by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12935
• Fix MultiselectColumn shape error when adding data by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12936
• [Fix] Font fallback & sidebar page nav font by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12948
• [Fix] Disabled widgets show border when showWidgetBorder=true by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12949
• [fix] st.pills and st.segmented_control wrapping regression by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12969
• [fix] st.color_picker minimum width constraint by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12962
• Improve metric sparkline hovering efficiency by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12983
• [fix] st.dataframe date picker icon visibility in dark mode by @aritradhabal in https://github.com/streamlit/streamlit/pull/12994
• [fix] Fixes visual regression with st.audio_input waveform by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/13010
• Bump js-yaml from 3.14.1 to 3.14.2 in /component-lib by @dependabot[bot] in https://github.com/streamlit/streamlit/pull/13026
• [fix] Do not print warning for placeholder CCv2 definitions by @sfc-gh-bnisco in https://github.com/streamlit/streamlit/pull/13043
• [fix] st.feedback icon wrapping with minimum width enforcement by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12970
• Remove upper bound for the packaging package by @tomtung in https://github.com/streamlit/streamlit/pull/13073
• Fix empty Markdown code blocks rendering as “undefined” by @ashm-dev in https://github.com/streamlit/streamlit/pull/13074
• [fix] segmented control wrapping issue by @sfc-gh-lwilby in https://github.com/streamlit/streamlit/pull/12879
• [fix] Ensure key is reflective of data arg in CCv2 instances by @sfc-gh-bnisco in https://github.com/streamlit/streamlit/pull/12950
• Fix query parameters not preserved on back navigation by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13129
• Enable better file uploading on Android by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13132
• [fix] Reclassify Auth Callback Error -> Warning by @sfc-gh-bnisco in https://github.com/streamlit/streamlit/pull/13127
• Improve st.line_chart hovering performance by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13156

Other Changes

• Docs for Custom Components V2 by @sfc-gh-dmatthews in https://github.com/streamlit/streamlit/pull/12877
• [chore] Release v1.51.0 by @github-actions[bot] in https://github.com/streamlit/streamlit/pull/12889
• Update FormsContext by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12788
• Add ScriptRunContext & ThemeContext by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12789
• Add NavigationContext by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12790
• Add SidebarConfigContext by @mayagbarnes in https://github.com/streamlit/streamlit/pull/12791
• Improve phrasing of st.plotly_chart **kwarg deprecation warning by @sfc-gh-tteixeira in https://github.com/streamlit/streamlit/pull/12989
• Add enhancement proposal process by @lukasmasuch in https://github.com/streamlit/streamlit/pull/12248
• Add support for altair 6 by @lukasmasuch in https://github.com/streamlit/streamlit/pull/13003
• [fix] Conditionally expose files/audio attributes in ChatInputValue based on accept parameters by @sfc-gh-nbellante in https://github.com/streamlit/streamlit/pull/13079
• Reduce entry bundle size - Part 1 by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13071
• Reduce entry bundle size - Part 2 by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13077
• Reduce entry bundle size - Part 3 by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13099
• Reduce entry bundle size - Part 4 by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13115
• Reduce entry bundle size - Part 5 by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13128
• StreamlitMarkdown - module level plugin cache by @mayagbarnes in https://github.com/streamlit/streamlit/pull/13152

New Contributors

• @marcolanfranchi made their first contribution in https://github.com/streamlit/streamlit/pull/12897
• @aritradhabal made their first contribution in https://github.com/streamlit/streamlit/pull/12994
• @sfc-gh-aamadhavan made their first contribution in https://github.com/streamlit/streamlit/pull/12942
• @tomtung made their first contribution in https://github.com/streamlit/streamlit/pull/13073
• @Copilot made their first contribution in https://github.com/streamlit/streamlit/pull/13106

Full Changelog: https://github.com/streamlit/streamlit/compare/1.51.0...1.52.0