What's Changed

New Features 🎉

• [feat] Allow specifying number of visible items via expanded in st.navigation by @lukasmasuch in #14051
• [feat] Add on_click rerun support to st.link_button by @lukasmasuch in #14116
• [feature] Add file type shortcuts for st.file_uploader and st.chat_input by @lukasmasuch in #14140
• Allow programmatically setting st.dataframe selections by @lukasmasuch in #13594
• [feat] Extract leading icon from alert body by @lukasmasuch in #14173
• [feat] Serve static files with native content types by @lukasmasuch in #14090
• feat: allow external URLs in st.Page for navigation sidebar by @t0k0shi in #13691
• [feat] Add AudioColumn and VideoColumn to st.column_config by @lukasmasuch in #14032
• [feat] Add st.menu_button widget by @lukasmasuch in #13981
• [feature] Add hide_index and hide_header to st.table by @lukasmasuch in #14113
• [feature] Add height parameter to st.chat_input by @lukasmasuch in #14165
• [feature] Add st.file_uploader support to AppTest by @lukasmasuch in #14341
• [feature] Always show the dataframe column visibility menu by @lukasmasuch in #14336
• [feature] Add support for relative static file serving URLs in media elements by @lukasmasuch in #14317
• [feature] Add alignment parameter to column_config columns by @lukasmasuch in #14333
• [feat] Complete incomplete markdown syntax during streaming by @lukasmasuch in #13939
• [feature] Stable Block.id for passive keyed layout containers by @sfc-gh-lwilby in #14330
• [feature] st.tabs state persistence and CSS key class by @sfc-gh-lwilby in #14332
• [feature] st.expander & st.popover state persistence and CSS key class by @sfc-gh-lwilby in #14356
• [feature] Add required parameter to st.pills and st.segmented_control by @lukasmasuch in #14414
• Add support for pandas 3.x by @lukasmasuch in #13812
• [feature] Add single-row-required selection mode to st.dataframe by @lukasmasuch in #14288
• [feature] Add autoscroll parameter to st.container by @lukasmasuch in #14502
• [feature] Add filter mode to select widgets by @lukasmasuch in #14537
• [feature] Add st.iframe command by @lukasmasuch in #14433

Bug Fixes 🐛

• [fix] Allow running streamlit with python optimization by @lukasmasuch in #14171
• [Fix] Fix st.text_area height="content" not working by @lukasmasuch in #14228
• Fix stale anchor preserved when clearing transient nodes by @lukasmasuch in #14251
• fix(testing): initialize BidiComponentManager in AppTest mock runtime by @tysoncung in #14301
• [fix] Python 3.14 PEP 649 annotation compatibility across inspect.signature() calls by @lukasmasuch in #14327
• [fix] Restore tooltip on st.multiselect selected options by @lukasmasuch in #14353
• [fix] Restore reactJsonViewCompat shim for local dev server by @lukasmasuch in #14391
• [Fix] Restore bound query params in URL with MPA by @mayagbarnes in #14374
• [fix] st.exception links overflow at small widths by @sfc-gh-lwilby in #14417
• [fix] Remove heading padding in horizontal containers for proper alignment by @sfc-gh-lwilby in #14419
• [fix] Streaming markdown with color directives shows artifact by @lukasmasuch in #14468
• [fix] Add Windows stability check to file watcher to reduce false positives by @lukasmasuch in #14174
• Fix #11308: update server.port after binding to port 0 by @joanaarnauth in #14372
• [fix] Add border to main menu in dark mode by @lukasmasuch in #14529
• [Fix] OpenMetrics compliance for session_duration metric by @mayagbarnes in #14476
• Fix programmatic dataframe selections to return AttributeDictionary by @lukasmasuch in #14455

Other Changes

• [refactor] Log widget state duplication warning to console instead of UI by @lukasmasuch in #14141
• [chore] Update emojis/material icons by @github-actions[bot] in #14186
• Update protobuf requirement from <7,>=3.20 to >=3.20,<8 in /lib by @dependabot[bot] in #14213
• [chore] Release v1.55.0 by @github-actions[bot] in #14203
• refactor(ccv2): rename BidiComponentResult to ComponentResult by @sfc-gh-bnisco in #14253
• [chore] Update emojis/material icons by @github-actions[bot] in #14282
• [chore] Update emojis/material icons by @github-actions[bot] in #14395
• Docs for st.navigation expanded parameter by @MathCatsAnd in #14451
• Docs for new file uploader types by @MathCatsAnd in #14453
• Docs for st.link_button by @MathCatsAnd in #14452
• Docs for auto-extracting icons by @MathCatsAnd in #14458
• [chore] Update emojis/material icons by @github-actions[bot] in #14482
• Docs for menu button by @MathCatsAnd in #14495
• Docs for table hide options by @MathCatsAnd in #14497
• Docs for URL pages and navigation by @MathCatsAnd in #14480
• Docs for chat input height by @MathCatsAnd in #14499
• Add key-value list example for st.table by @lukasmasuch in #14474
• [Fix] Make _stcore/metrics OpenMetrics-compliant by @mayagbarnes in #14538

New Contributors

• @Rohan5commit made their first contribution in #14154
• @t0k0shi made their first contribution in #13691
• @tysoncung made their first contribution in #14301
• @ianjch314 made their first contribution in #14354
• @joanaarnauth made their first contribution in #14372

Full Changelog: 1.55.0...1.56.0

What's Changed

Breaking Changes 🛠

• Add deprecation warning to SnowparkConnection by @lukasmasuch in #14125

New Features 🎉

• Extend sprintf to support thousand separator by @lukasmasuch in #13284
• Refactor SettingsDialog & add copyable version by @mayagbarnes in #13791
• Exclude collapsed expander content from browser find-in-page (Cmd+F) by @lukasmasuch in #13818
• Allow dynamic changes to st.pills and st.segmented_control options when key is provided by @lukasmasuch in #13684
• Add support for cachetools 7.x by @lukasmasuch in #13839
• Add support for selections on multi-view vega charts by @lukasmasuch in #13591
• Add client.allowedOrigins config option by @lukasmasuch in #13829
• Have server ack app_heartbeat messages received from client by @vdonato in #13810
• feat: add metricValueFontSize and metricValueFontWeight theme options by @kagawa0710 in #13550
• [feature] add width auto parameter to st.markdown by @sfc-gh-lwilby in #13841
• Bind widgets to query params - FE hooks & color_picker support by @mayagbarnes in #13845
• Bind widgets to query params - st.checkbox & st.toggle by @mayagbarnes in #13900
• Auto-escape some markdown syntax in markdown labels by @lukasmasuch in #13887
• Bind widgets to query params - st.text_input & st.text_area by @mayagbarnes in #13901
• Add page visibility parameter to st.Page by @lukasmasuch in #13905
• Add width and height configuration to st.table by @lukasmasuch in #13850
• Bind widgets to query params - st.radio & st.selectbox by @mayagbarnes in #13922
• Bind widgets to query params - st.number_input by @mayagbarnes in #13917
• Bind widgets to query params - st.multiselect by @mayagbarnes in #13951
• [DynamicContainers] Dynamic Popovers by @sfc-gh-lwilby in #13914
• Add select all and select x matches (select all 2) by @sfc-gh-dmatthews in #13795
• New styling for selectbox and multiselect (select all 3) by @sfc-gh-dmatthews in #13796
• New styling for date and time widgets (select all 4) by @sfc-gh-dmatthews in #13797
• New styling for remaining dropdowns (select all 5) by @sfc-gh-dmatthews in #13798
• Add delta_description to st.metric by @lukasmasuch in #13848
• [DynamicContainers] Dynamic Tabs by @sfc-gh-lwilby in #13910
• [feat] Add scroll arrows for overflowing tabs in st.tabs by @lukasmasuch in #13987
• [DynamicContainers] Dynamic Expanders by @sfc-gh-lwilby in #13888
• Bind widgets to query params - st.slider & st.select_slider by @mayagbarnes in #13979
• [feat] Add custom hex color support for markdown rendering by @lukasmasuch in #14041
• [feat] Add markdown support to page titles in st.Page by @lukasmasuch in #14010
• Bind widgets to query params - st.pills & st.segmented_control by @mayagbarnes in #14006
• Bind widgets to query params - st.date_input by @mayagbarnes in #14034
• [DynamicContainers] Callback support for expanders by @sfc-gh-lwilby in #14008
• [Feat] Updated MainMenu by @mayagbarnes in #14101
• Add logger.hideWelcomeMessage config option by @vdonato in #14118
• Bind widgets to query params - st.datetime_input & st.time_input by @mayagbarnes in #14103
• [DynamicContainers] Callback support for popovers by @sfc-gh-lwilby in #14075
• [DynamicContainers] Callback support for tabs by @sfc-gh-lwilby in #14007
• [feature] Add link parameter to st.image by @lukasmasuch in #14139
• [feat] Add markdown support for navigation section headers by @lukasmasuch in #14053

Bug Fixes 🐛

• [security] Prevent SSRF attacks via path traversal in component file handling by @sfc-gh-nbellante in #13733
• [fix] Support boolean values for client.showErrorLinks config option by @sfc-gh-nbellante in #13806
• Fix st.select_slider format_func regression in AppTest by @lukasmasuch in #13837
• Initialize all columns when appending rows to data_editor by @lukasmasuch in #13916
• Don't accept 0 max selections in st.multiselect by @sfc-gh-dmatthews in #13966
• [fix] Restore layered vconcat width propagation and add #13974 regression tests by @sfc-gh-bnisco in #13980
• [fix] Add selection support for treemap and sunburst in st.plotly_chart by @lukasmasuch in #13935
• fix: preserve active tab selection after spinner reruns by @sfc-gh-bnisco in #14023
• fix(code-block): move copy action into toolbar and preserve keyboard accessibility by @sfc-gh-bnisco in #14024
• Fix st.Page accepting slash-only url_path without raising exception by @nileshhadalgi016 in #14005
• fix(vega-lite): render vconcat charts with faceted/repeated children by @sfc-gh-bnisco in #14065
• fix(widgets): clear stale date validation UI on form clear by @sfc-gh-bnisco in #14066
• fix(button-group): keep segmented control hover borders visually consistent by @sfc-gh-bnisco in #14067
• Cache SqlConnection.query results per-instance. by @sfc-gh-jkinkead in #14094
• [fix] st.metric with chart_data wrapping in horizontal containers by @sfc-gh-lwilby in #14110
• [fix] Normalize all date_input session state values to date by @lukasmasuch in #14123
• Fix spinner clear_transient race condition during rapid reruns by @kmcgrady in #13849

Other Changes

• Improve streamlit config show output for theme sourcing by @mayagbarnes in #13761
• [chore] Update emojis/material icons by @github-actions[bot] in #13789
• [chore] Release v1.54.0 by @github-actions[bot] in #13807
• [refactor] remove loading skeleton for dynamic popover by @sfc-gh-lwilby in #14043
• [chore] Update emojis/material icons by @github-actions[bot] in #14099
• Improve version copy accessibility by @mayagbarnes in #14131
• [chore] Wire up check_widget_policies correctly in dynamic containers by @sfc-gh-lwilby in #14143
• Format date/time slider URL query params as ISO strings by @mayagbarnes in #14120

New Contributors

• @nileshhadalgi016 made their first contribution in #14005

Full Changelog: 1.54.0...1.55.0

What's Changed

Breaking Changes 🛠

• Remove experimental query params by @lukasmasuch in #13142
• Remove deprecated st.experimental_user command by @lukasmasuch in #13626
• Set add_rows deprecation warning to show in browser by @lukasmasuch in #13628

New Features 🎉

• Use key as main identity for st.dataframe with selections by @lukasmasuch in #13558
• Use key as main identity for vega charts with selections by @lukasmasuch in #13559
• Add chartDivergingColors theming config option by @mayagbarnes in #13581
• Allow dynamically changing in min and max in st.date_input by @lukasmasuch in #13549
• Allow dynamically changing min_value and max_value in st.datetime_input when key is provided by @lukasmasuch in #13620
• Prepare pandas 3.0 compatibility by @lukasmasuch in #13630
• Allow dynamic changes to st.radio options when key is provided by @lukasmasuch in #13611
• Support auto-rerun when config.toml is created by @lukasmasuch in #13625
• Allow selecting text of pills in the MultiselectColumn and ListColumn by @lukasmasuch in #13663
• Prepare for binding widgets to query params - Part 1 by @mayagbarnes in #13681
• feat(logo): add support for Material icons and emojis in st.logo by @rahuld109 in #13416
• Allow dynamic changes to st.select_slider options when key is provided by @lukasmasuch in #13696
• Add "client.showErrorLinks` config option (#11238)" by @karubian in #13472
• Allow dynamic changes to st.pydeck_chart parameters when key is provided by @lukasmasuch in #13703
• Support resolving to theme colors configs for charts by @mayagbarnes in #13739

Bug Fixes 🐛

• Fix bar chart error with uniform column values by @sfc-gh-kmcgrady in #13590
• [fix] Increase max width of uploaded files in st.chat_input by @sfc-gh-nbellante in #13589
• [fix] Add defensive check in Manifest Scanner by @sfc-gh-bnisco in #13612
• Support new auth features in Starlette by @lukasmasuch in #13571
• Hide developer options when toolbarMode="viewer" by @sfc-gh-dmatthews in #13623
• Fix SnowflakeConnection.query() cache key to include params by @sfc-gh-kmcgrady in #13652
• Fix crash with container elements in spinner context by @sfc-gh-kmcgrady in #13659
• Fix a regression with snowflake connection being closed by @lukasmasuch in #13665
• Fix TransientNode not capturing BlockNode as anchor when replacing by @kmcgrady in #13674
• Fix selectbox and multiselect clearing selections for custom objects by @lukasmasuch in #13648
• Fix KeyError when sorting melted bar chart data by @lukasmasuch in #13695
• Fix sidebar collapsing on mobile when clicking portaled elements by @sfc-gh-kmcgrady in #13653
• [fix] Display wildcard addresses as localhost in URLs by @sfc-gh-nbellante in #13720

Other Changes

• [chore] Release v1.53.0 by @github-actions[bot] in #13588
• [chore] Release v1.53.1 by @github-actions[bot] in #13676

New Contributors

• @sfc-gh-kmcgrady made their first contribution in #13590
• @rahuld109 made their first contribution in #13416
• @rishi-kumar0612 made their first contribution in #13004
• @karubian made their first contribution in #13472

Full Changelog: 1.53.1...1.54.0

Full Changelog: 1.53.0...1.53.1

What's Changed

Breaking Changes 🛠

• [feat] Move the isolate_styles param in CCv2 by @sfc-gh-bnisco in #13518
• [feat] Rename some external CCv2 types by @sfc-gh-bnisco in #13515

New Features 🎉

• Support for markdown in the metrics value and delta parameters by @jensonjohnathon in #13094
• Make Default Sidebar Width Configurable by @jose-mindwayai in #12154
• [feat] Update chat input UI with improved layout and styling by @sfc-gh-nbellante in #13088
• Add support for setting metric delta colors from color palette by @lukasmasuch in #13153
• Support configuring the format in st.metric by @lukasmasuch in #13193
• Support for markdown in select_slider options by @jensonjohnathon in #12960
• Navigate to home page on logo click by @lukasmasuch in #13222
• Add max_upload_size parameter to file_uploader and chat_input by @rishabhjain1712 in #12816
• Allow only adding or deleting rows in st.data_editor by @lukasmasuch in #13228
• Add icon_position support for button-like components by @SiddhantSadangi in #13150
• [feat] Add headingFontSize1-6 and headingFontWeight1-6 CSS Custom Properties by @sfc-gh-bnisco in #13268
• [feat] Enhance st.chat_input file upload UI with improved file chips and retry functionality by @sfc-gh-nbellante in #13223
• Add icon support to dialogs by @KaranPradhan266 in #13244
• Allow dynamic changes to selectbox options when key is provided by @lukasmasuch in #13383
• Add path tooltip on st.json value click by @lukasmasuch in #13113
• Support passing list of pydantic objects as dataframe-like structure by @lukasmasuch in #13348
• [feat] Update AGENTS rules for better a11y practices by @sfc-gh-bnisco in #13411
• [feat] Update eslint rules for better a11y support by @sfc-gh-bnisco in #13412
• Expose OIDC tokens by @velochy in #12044
• Support pre-defined formats in format of st.slider by @lukasmasuch in #13392
• Add on_release to st.cache_resource. by @sfc-gh-jkinkead in #13439
• Add gaps and sizes for xxsmall, xsmall, xlarge, xxlarge in st.container/columns/space by @sfc-gh-tteixeira in #13345
• Add new session_duration_seconds_total stats by @vdonato in #13414
• Add session scoping to caches. by @sfc-gh-jkinkead in #13482
• [feat] Simplify chat input UI with single-row layout for basic configurations by @sfc-gh-nbellante in #13364
• Add session-scoped connection support. by @sfc-gh-jkinkead in #13506
• [feat] Allow for optional js, css, and html params in CCv2 by @sfc-gh-bnisco in #13511
• Allow dynamically changing in min, max and step in st.number_input by @lukasmasuch in #13512
• Add optional support for running Streamlit with Starlette by @lukasmasuch in #13375
• Add SnowflakeCallersRightsConnection. by @sfc-gh-jkinkead in #13538
• Allow dynamic changes to multiselect options when key is provided by @lukasmasuch in #13448
• fix(multiselect): preserve scroll position when removing items by @kagawa0710 in #13384
• Add experimental ASGI app entry point for advanced server configuration by @lukasmasuch in #13537
• Allow OAuth redirect_uri to reference current port by @velochy in #12251
• Make st.logout use end_session_endpoint if provided in OIDC config (V2) by @velochy in #12693
• [feat] Add dynamic layout switching for st.chat_input by @sfc-gh-nbellante in #13546

Bug Fixes 🐛

• [fix] improve width/height error message to say "positive integer" by @sfc-gh-lwilby in #13206
• Fix unexpected shrinking of logo with top nav by @lukasmasuch in #13226
• [fix] Do not render sidebar nav when top nav enabled by @sfc-gh-bnisco in #13227
• Implement transient spinners by @kmcgrady in #12826
• [fix] Include default in key for CCv2 instances by @sfc-gh-bnisco in #13266
• [fix] Ensure key down targeting works for elements in Shadow DOM by @sfc-gh-bnisco in #13264
• Fix data editor regression when starting from empty column by @lukasmasuch in #13309
• Prevent st.dialog from showing elements from previous dialog by @lukasmasuch in #13297
• Fix auth-related issues caused by dependency updates by @lukasmasuch in #13333
• [Fix] Theme preference persistence across reloads by @mayagbarnes in #13306
• [fix] Handle undefined theme properties in CCv2 by @sfc-gh-bnisco in #13240
• [fix] Ensure crossOrigin attribute is properly set for CCv2 stylesheets by @sfc-gh-bnisco in #13376
• Fix the spinner time text alignment by @lukasmasuch in #13388
• [fix] tooltip text leaking with newlines in help by @sfc-gh-lwilby in #13365
• [fix] Ensure anchor links in Markdown headers are accessible from keyboard by @sfc-gh-bnisco in #13378
• [fix] Ensure help Tooltips are accessible by @sfc-gh-bnisco in #13379
• [Fix] st.html handles list indentation by @mayagbarnes in #13437
• [Fix] st.selectbox set via session state does not restore initial value by @mayagbarnes in #13438
• [Fix] Altair charts with vconcat and hconcat by @mayagbarnes in #13423
• Fix custom theme when embedded with embed_options by @ranmocy in #13498
• Improve st.number_input precision by @mayagbarnes in #13484
• Add ability to clear transient nodes when the script is run by @kmcgrady in #13166
• [fix] Correct justifyContents to justifyContent in Icon styled-components by @sfc-gh-nbellante in #13557
• [fix] Fix upload button functionality after drag-drop and delete in st.chat_input by @sfc-gh-nbellante in #13556

Other Changes

• [chore] Release v1.52.0 by @github-actions[bot] in #13186
• [chore] Release v1.52.1 by @github-actions[bot] in #13235
• [Fix] Theme hashing by @mayagbarnes in #13173
• Use the correct snowflake.com domains by @lukasmasuch in #13363
• [chore] Release v1.52.2 by @github-actions[bot] in #13390
• [polish] Update chat input file chip border radius to match Figma by @sfc-gh-nbellante in #13532
• [Fix] Consolidate border/hover colors by @mayagbarnes in #13536
• [feat] Replace inline error messages with tooltips in st.chat_input file upload UI by @sfc-gh-nbellante in #13542
• [fix] Update ghost button colors for st.chat_input buttons by @sfc-gh-nbellante in #13535
• [fix] Improve st.chat_input file delete button colors by @sfc-gh-nbellante in #13554
• [polish] Replace Mic icon with MicNone icon in st.chat_input by @sfc-gh-nbellante in #13553
• [fix] Shorten st.chat_input file chip display to adhere to designs by @sfc-gh-nbellante in #13555
• [feat] Add image thumbnails to st.chat_input file uploads by @sfc-gh-nbellante in #13547

New Contributors

• @jensonjohnathon made their first contribution in #13094
• @jose-mindwayai made their first contribution in #12154
• @rishabhjain1712 made their first contribution in https://github.com/streamlit/streamlit/p...

Full Changelog: 1.52.1...1.52.2

Full Changelog: 1.52.0...1.52.1

What's Changed

Breaking Changes 🛠

• Remove native bokeh charts support by @lukasmasuch in #12964
• Add deprecation note to add_rows command by @lukasmasuch in #13080
• Deprecate kwargs support for st.vega_lite_chart by @lukasmasuch in #13141

New Features 🎉

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

Bug Fixes 🐛

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

Other Changes

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

New Contributors

• @marcolanfranchi made their first contribution in #12897
• @aritradhabal made their first contribution in #12994
• @sfc-gh-aamadhavan made their first contribution in #12942
• @tomtung made their first contribution in #13073
• @Copilot made their first contribution in #13106

Full Changelog: 1.51.0...1.52.0

What's Changed

New Features 🎉

• [AdvancedLayouts] Add width to st.plotly_chart by @sfc-gh-lwilby in #12559
• Feat: Automatically hide row indices in st.dataframe when row selection is active by @plumol in #12448
• [AdvancedLayouts] Add width to st.vega_lite_chart by @sfc-gh-lwilby in #12517
• Add codeTextColor config & update linkColor by @mayagbarnes in #12562
• [AdvancedLayouts] Add height to st.vega_lite_chart by @sfc-gh-lwilby in #12577
• [AdvancedLayouts] Add width to st.pydeck_chart by @sfc-gh-lwilby in #12576
• Use key as main identity for st.color_picker by @lukasmasuch in #12569
• Add type argument to st.popover to match st.button by @sfc-gh-tteixeira in #12598
• [AdvancedLayouts] Add width to st.altair_chart by @sfc-gh-lwilby in #12608
• Add cursor kwarg to st.write_stream by @sfc-gh-tteixeira in #12597
• In streamlit hello, preload Python modules that are slow to compile in a fresh venv by @sfc-gh-tteixeira in #12617
• Reusable Custom Themes via theme.base config by @mayagbarnes in #12572
• Make streamlit run with no args mean streamlit run streamlit_app.py by @sfc-gh-tteixeira in #12599
• Allow st.feedback to have a default initial value (#9469) -> #9658 by @andreasntr in #12578
• [AdvancedLayouts] Add height to st.altair_chart by @sfc-gh-lwilby in #12630
• [AdvancedLayouts] Modernize height parameter for st.pydeck_chart by @sfc-gh-lwilby in #12613
• [AdvancedLayouts] Update width and height on st.map by @sfc-gh-lwilby in #12658
• [AdvancedLayouts] Modernize width/height parameters for st.scatter_chart by @sfc-gh-lwilby in #12659
• [AdvancedLayouts] Modernize width and height for st.area_chart and st.bar_chart by @sfc-gh-lwilby in #12672
• Custom Dark Theme - add light/dark section configurations for theme & theme.sidebar by @mayagbarnes in #12680
• Use key as main identity for st.segmented_control widget by @lukasmasuch in #12711
• Use key as main identity for st.radio widget by @lukasmasuch in #12705
• Use key as main identity for st.audio_input widget by @lukasmasuch in #12720
• Add pinned parameter to MultiselectColumn by @lukasmasuch in #12714
• Use key as main identity for st.slider and st.select_slider by @lukasmasuch in #12575
• Custom Dark Theme - support light/dark config inheritance & populate new session msg by @mayagbarnes in #12707
• Use key as main identity for st.chat_input widget by @lukasmasuch in #12725
• Add support for auto color to MutliselectColumn using chart colors by @lukasmasuch in #12724
• Allow configuring color for ProgressColumn by @lukasmasuch in #12738
• Use key as main identity for st.feedback and st.pills widgets by @lukasmasuch in #12717
• [AdvancedLayouts] Add stretch height to st.dataframe by @sfc-gh-lwilby in #12632
• Custom Dark Theme - theme & sidebar theme creation by @mayagbarnes in #12760
• Custom Dark Theme - main & settings menu updates by @mayagbarnes in #12761
• [feat] Add API for st.space by @sfc-gh-lwilby in #12737
• [feat] Add st.components.v2.components namespace and classes by @sfc-gh-bnisco in #12686

Bug Fixes 🐛

• Make slider thumbs not overshoot the track by @sfc-gh-tteixeira in #12549
• Fix vega chart unrecognized dataset error by @lukasmasuch in #11911
• [fix] Add AbortController for async upload operations by @sfc-gh-nbellante in #12539
• Fix PlotlyChart flickering by adding overflow hidden by @sfc-gh-lwilby in #12594
• Pills do not show selected value(s) if disabled #12388 by @davidsjoberg1 in #12555
• Make our Python Altair code thread-safe by @sfc-gh-tteixeira in #12673
• Fix file watcher issue with common path check by @lukasmasuch in #12741
• [fix] showErrorDetails config parsing for deprecation warnings by @sfc-gh-lwilby in #12794
• Make sure error message is explicitly shown for 500 errors by @kmcgrady in #12845
• Makes fuzzy search case insensitive by @kmcgrady in #12849
• [fix] DataFrame content width horizontal alignment by @sfc-gh-lwilby in #12682
• [fix] pyplot/image width regression in fragments, containers by @sfc-gh-lwilby in #12807

Other Changes

• Update vega_lite_chart width parameter default handling for type consistency by @sfc-gh-lwilby in #12595
• [chore] Release v1.50.0 by @github-actions[bot] in #12612
• Settings menu updates by @mayagbarnes in #12648
• [chore] Update emojis/material icons by @github-actions[bot] in #12669
• Clarify dataframe data types when starting with empty columns by @sfc-gh-dmatthews in #12779
• Selection widgets return copies by @sfc-gh-dmatthews in #12778
• Fix grammar/typos in config documentation by @sfc-gh-tteixeira in #12783
• Remove Python 3.9 support by @lukasmasuch in #12773
• Custom Dark Theme - section updates & e2e tests by @mayagbarnes in #12798

New Contributors

• @andreasntr made their first contribution in #12578
• @davidsjoberg1 made their first contribution in #12555
• @ben05allen made their first contribution in #12652

Full Changelog: 1.50.0...1.51.0

What's Changed

Breaking Changes 🛠

• refactor: deprecate kwargs in st.plotly_chart and add config dict instead by @zyfy29 in #12291
• Use key as main identity for st.checkbox & st.toggle by @lukasmasuch in #12372
• Remove **kwargs support from st.write by @lukasmasuch in #12375
• Use key as main identity for st.number_input by @lukasmasuch in #12437
• Use key as main identity for st.text_area & st.text_input by @lukasmasuch in #12397

New Features 🎉

• Add MultiselectColumn for st.dataframe and st.data_editor by @lukasmasuch in #9223
• Add support for source directly in theming font configs by @mayagbarnes in #12239
• [feat] Add default param to st.tabs by @sfc-gh-bnisco in #12313
• Add border parameter to st.table by @jrieke in #11796
• [feat] Hover, active, focus-visible states for CopyButton by @sfc-gh-bnisco in #12348
• [AdvancedLayouts] Adds a width parameters to st.line_chart. by @sfc-gh-lwilby in #11923
• Add main theme color config options by @mayagbarnes in #12288
• Use key as main identity for button widgets by @lukasmasuch in #12332
• Add sort parameter to st.bar_chart by @jrieke in #12339
• Add theme background color config options by @mayagbarnes in #12405
• Add theme text color config options by @mayagbarnes in #12438
• Use key as main identity for st.time_input & st.date_input by @lukasmasuch in #12464
• [feat] Add sample rate parameter to st.audio_input component by @sfc-gh-nbellante in #12272
• Metric supports numerics like decimal. by @aebrahim in #12377
• Show slider tick labels on hover by @lukasmasuch in #12367
• [AdvancedLayouts] Add height param to st.graphviz_chart by @sfc-gh-lwilby in #12297
• Use key as main identity for st.selectbox & st.multiselect by @lukasmasuch in #12493
• Support configuring the chart column colors by @lukasmasuch in #12292

Bug Fixes 🐛

• Fix code usage in markdown labels by @lukasmasuch in #12175
• [fix] Fullscreen behaviour for st.image with use_container_width=True or width="stretch" by @sfc-gh-lwilby in #12235
• [fix] DateInput: normalize selected dates to start-of-day to honor max by @sfc-gh-bnisco in #12295
• Ensure markdown images keep the aspect ratio by @lukasmasuch in #12343
• Fix issue with typing formatted values into st.number_input by @lukasmasuch in #12351
• [fix] html with float height. by @sfc-gh-lwilby in #12354
• [fix] Share more code between Selectbox and Multiselect to align behavior by @sfc-gh-bnisco in #12330
• Fix logo pushing out collapse button by @lukasmasuch in #12329
• Fix long-words overflowing markdown container by @lukasmasuch in #12370
• Add MIME type for .mjs by @geoextra in #12399
• Fix Pandas styler performance regression by @lukasmasuch in #12422
• [fix] Allow empty section pages in top navigation similar to how we do it for sidebar nav by @nico-bellante in #12247
• [fix] horizontal alignment of st.image in vertical containers by @sfc-gh-lwilby in #12495
• [fix] Setting 0 for height/width on components.html and components.iframe . by @sfc-gh-lwilby in #12479
• Fix duckdb integration test by @lukasmasuch in #12537
• Revert number input component refactoring by @lukasmasuch in #12547

Other Changes

• Add default main colors to theme by @mayagbarnes in #12334
• Release/1.49.0 by @lukasmasuch in #12328
• Release/1.49.1 by @lukasmasuch in #12376
• Add default background colors to theme by @mayagbarnes in #12341
• Make git utilities more robust by @lukasmasuch in #12393
• Update cache headers to include max-age and immutable by @sfc-gh-gwatters in #12420
• Add default text colors to theme by @mayagbarnes in #12407
• [chore] Adding latest material icons by @sfc-gh-nbellante in #12473
• [chore] Updating material icons by @sfc-gh-nbellante in #12535

New Contributors

• @zyfy29 made their first contribution in #12291
• @geoextra made their first contribution in #12399
• @sfc-gh-gwatters made their first contribution in #12420
• @nico-bellante made their first contribution in #12247
• @aebrahim made their first contribution in #12377

Full Changelog: 1.49.1...1.50.0