Version 0.12.4

The 0.12.4 release fixes a number of bugs and a regression of the autoreload feature in 0.12.2 and 0.12.3.

Compatibility:

• Fix issues with --autoreload caused by changes in Bokeh 2.4 (#2755)

Enhancements:

• Ensure user is warned if an extension was not loaded in time on server (#2765)
• Allow Viewer classes to be served (#2768)
• Add support for rendering .ico files and pathlib objects (#2757)

Bug fixes:

• Fixed export of vtk.js module (#2562)
• Fix broken HTMLTemplateFormatter on Tabulator (#2730)
• Fix serialization issues of Panel components on ReactiveHTML (#2743)
• Ensure FlexBox behaves like a layout and makes its children discoverable (#2779)
• Ensure Plotly plots can be updated in tabs (#2747)
• Fix embedding of Panel apps in Flask (#2727)
• Ensure Spinner widget honors bounds when created from Param object (#2740)
• Ensure Tabulator style does not disappear after resize event (#2770)
• Fix PeriodicCallback errors (#2764)
• Fix syncing of boolean types with URL parameters (#2758)
• Ensure Tabulator.download_menu applies kwargs to the filename TextInput (#2763)
• Ensure Tabulator does not error when no Styler is defined (#2785)

Documentation:

• Fix MaterialUI custom component example (#2680)
• Fix image url in Markdown reference gallery example (#2734)
• Add Folium thumbnail in reference gallery (#2744)

Version 0.12.3

The 0.12.2 release unfortunately has a compatibility issue with Bokeh 2.4 which broke the show() method. This release fixes this regression.

• Patch Bokeh to fix show() (#2748)

Version 0.12.2

This is a patch release with a small number of bug fixes and compatibility for bokeh 2.4. Many thanks to the contributors @Stubatiger, @maximlt, @nghenzi and the maintainers @MarcSkovMadsen and @philippjfr for the fixes in this release.

Enhancements:

• Add option to hide constant parameters on Param pane (#2637)
• Added on_session_destroyed callback (#2659)
• Stricter validation for linking syntax in ReactiveHTML._template (#2689)

Bug fixes:

• Improved thread safety (#2631)
• Ensure sessions get distinct files in config (#2646)
• Fix bug when updating Trend data (#2647)
• Ensure sorters are applied correctly after updating Tabulator value (#2639)
• Correctly reflect filtered data on Tabulator.selection (#2676
• Unescape child literal HTML in ReactiveHTML (#2690)
• Ensure Trend indicator can be rendered in layout (#2694)

Documentation:

• Enhance templates docs (#2658)
• Add Folium reference notebook (#2672)

Compatibility:

• Add support for bokeh 2.4 (#2644, #2687, #2696)

Version 0.12.1

This is a patch release with a small number of fixes following the 0.12.0 release. Many thanks to the maintainers @MarcSkovMadsen and @philippjfr for the fixes in this release.

Enhancements:

• Bundle .map files during build to allow source mapping (#2591)
• Various style improvements for Fast templates (#2604, #2609, #2611, #2615)
• Implement hierarchical aggregation for Tabulator (#2624)

Bug fixes:

• Fix logo on Fast templates (#2184)
• Fix height responsiveness of Folium pane (#2231)
• Fix bug updating Tqdm indicator (#2554)
• Ensure --autoreload doesn't error on cleaned up session (#2570)
• Don't use persisted layout if save_layout=False (#2579)
• Pin version of tqdm with asyncio support (#2595)
• Reset layout when resetting grid template layout (#2576)
• Fix line-height issues in Fast templates (#2600)
• Clean up sessions after warmup and ensure periodic callbacks are cleaned up (#2601)

Documentation:

• Enable JupyterLab preview button on binder (#2545)
• Update theme toggle documentation for Fast templates (#2560)
• Update Fast template documentation and enable full screen (#2577)
• Fix binder links on website (#2590)
• Add docs about loading the ipywidgets extension (#2594)

Version 0.12.0

The 0.12.0 release is a minor release with a lot of exciting and a huge amount of bug fixes. We are very excited about the growing community and the many contributions we received. In particular we would like to thank @douglas-raillard-arm, @mathrick, @jlstevens, @hyamanieu, @Liam-Deacon, @Stubatiger, @ablythed, @syamajala, @hoxbro, @jbednar, @brl0, @OBITORASU, @fleming79, dhruvbalwada and @rmorshea for contributing various fixes and improvements and the core developers @xavArtley, @MarcSkovMadsen and @philippjfr for continuing to push the development of Panel.

Features:

• Add ReactiveHTML (#1894, #2091, #2092, #2098, #2115, #2210, #2287, #2290, #2332, #2345, #2372, #2373, #2374, #2383, #2384, #2393, #2397, #2399, #2400, [#2401 #2402, #2404, #2533, #2535)
• Add Terminal Widget based on xterm.js (#2090)
• Adding a DatetimePicker widget (#2107, #2135)
• Add editable sliders (#2111, #2133, #2208)
• Add FlexBox layout (#2233, #2511)
• Add ability to configure global template (#2271)
• Add GridStack layout (#2375)
• Add PDF pane (#2444)
• Add /panel-preview endpoint for Jupyter server extension (#2341, #2361)
• Add Tqdm Indicator (#2079)

Enhancements:

• Add empty Progress bar (#2088)
• Optimize initialization of templates (#2096)
• Serialize Perspective schema (#2130)
• Updated JSON pane to accept single quote and wrap properly (#2143, #2443)
• Improvements for Perspective (#2153)
• Improve handling of server prefix and proxied deployment scenarios (#2159, #2162)
• Add support for setting bokeh theme (#2164, #2166, #2170)
• Completely overhauled the default index template (#2198, #2340)
• Enhancements for Template modals (#2269, #2523)
• Make the Template sidebar width configurable (#2301)
• Improve look and feel and styling of Fast templates (#2303, #2469, #2484, #2488)
• Allow setting kwargs in Reactive.controls (#2304)
• Add global configuration variable to always throttle sliders (#2306)
• Add support for controlling text alignment in DataFrame and Tabulator (#2331)
• Add Tabulator theme for Fast Templates (#2425)
• Add ability to make only certain Tabulator rows selectable (#2433)
• Add visible parameter to all components (#2440)
• Send Plotly restyle and relayout events rather than full updates (#2445)
• Add push_notebook helper function for syncing bokeh property changes in notebooks (#2447)
• Improve visual styling of Card (#2343, #2348, #2376, #2437, #2527)
• Ensure config variables are configured per user session (#2358, #2455, #2481)
• Add save_layout and prevent_collision to ReactTemplate and FastGridTemplate (#2296, #2357)
• Add ability to declare root application from panel serve (#2392)
• Support jslinking Parameterized class (#2441)
• Improve config.sizing_mode behavior (#2442)
• Add separate RangeSlider value_start and value_end parameters (#2457, #2468)
• Allow saving Templates (#2461)
• Bundle Tabulator resources to allow usage in airgapped environment (#2471)
• Ensure Trend indicator title wraps (#2483)
• Scroll on Tabulator selection (#2503)
• Increase notebook resource load timeout (#2515)
• Auto-detect VSCode and Colab comms (#2536)
• Add tooltip to Tabulator cells to see unformatted value (#2543)

Bug fixes:

• Fix missing video in Video (#2109)
• use idom.config to set dist dir (#2117)
• Remove bootstrap CSS from FastGridTemplate (#2123)
• Fix issues with Ace z-index (#2126)
• Fix updating of Tabulator selection property (#2128)
• Ensure changes on ReactiveData source are scheduled correctly (#2134)
• Fixed Player looping when start is 0 (#2141)
• Fix divide by zero issues on Trend indicator (#2148)
• Ensure GridSpec override handles duplicate matches (#2150)
• Fix for loading parameter widget linking (#2160)
• Fix Tabulator ajax call on empty data (#2161)
• Fix Tabulator sorting and data initialization (#2163)
• Fix editing Tabulator with filters applied (#2165)
• Fix theming on HoloViews plot updates (#2209)
• Fixed data handling on Perspective pane (#2212)
• Improve template and resource management for png export (#2221)
• Improve and standardize selection behavior of Tabulator (#2230)
• Ensure JS changes to Plotly pane are applied if not explicitly triggered (#2251)
• Fix server-side Tabulator selection changes (#2252)
• Fix update of Param subobjects (#2255)
• Add support for vtkCornerAnnotations (#2257)
• Improve request handling for remote pagination on Tabulator (#2265)
• Allow setting Param precedence to None (#2266)
• Disable nested field separators on Tabulator (#2289...

Version 0.11.3

The 0.11.3 release is another micro-release in the 0.11 series primarily focused on updating the documentation theme and a regression in loading Tabulator data.

Bug fixes:

• Fix Tabulator sorting and data initialization (#2163)
• Improved handling of IDOM build directory (#2168)
• Fix apply of bokeh_theme in templates (#2170)

Documentation:

• Switch to PyData Sphinx Theme (#2139)

Version 0.11.2

The 0.11.2 release is a micro-release fixing a number of smaller bugs. Many thanks to @hoxbro, @dhruvbalwada, @rmorshea, @MarcSkovMadsen, @fleming79, @OBITURASU and @philippjfr for their contributions to this release.

Enhancements:

• Optimize adding of roots to templates to avoid multiple preprocessing cycles (#2096)
• Use schema to support date(time) dtypes on Perspective (#2130)

Bug fixes:

• Fix regression on Video pane causing video not to be rendered at all (#2109)
• Fix missing closing tag in Fast templates (#2121)
• Remove bootstrap CSS from FastGridTemplate (#2123)
• Ensure Tabulator selection can be set from Python (#2128)
• Ensure changes on ReactiveData objects are scheduled correctly on server (#2134)
• Fix for Player widget when start value is 0 (#2141)
• Support single quotes on JSON pane (#2143)
• Fix divide by zero issues when value_change is computed from zero baseline (#2148)
• Ensure GridSpec handles overrides across multiple cells (#2150)
• Fix for loading parameter widget linking (#2160)
• Use relative URLs for resource loading to ensure proxied apps work (#2159)
• Fix Tabulator ajax call on empty data (#2161)

Documentation:

• Fix typo in Binder section of server deployment documentation (#2118)
• Improve documentation surrounding watch=True in Param user guide (#2120)

Compatibility:

• Ensure IDOM pane configures paths correctly for latest version (#2117, #2132)

Version 0.11.1

The 0.11.1 release is a micro-release addressing a number of smaller bugs in the last release. Many thanks to the contributors to this
release including @hoxbro, @xavArtley, @Jacob-Barhak and @philippjfr.

Enhancements:

• Allow setting horizontal and vertical alignment separately (#2072)
• Expose widgets visible property (#2065)
• Allow bind to extract dependencies and evaluate other dynamic functions (#2056)
• Allow setting root_directory on FileSelector widget (#2086)

Bug fixes:

• Fixed loading of jQuery in BootstrapTemplate (#2057)
• Fix VTK imports to ensure VTKVolume pane renders grids (#2071)
• Fix loading of template resources from relative paths (#2067)
• Fix Spinner component overflow (#2070)
• Handle integer column names on Perspective widget (#2069)
• Fix bundling of template resources (#2076)
• Fix value_throttled in pn.depends decorator (#2085)

Compatibility:

• Switch GitHub OAuth to use header authorization token (#2073)

Version 0.11.0

The 0.11.0 release brings a number of exciting new features to Panel
as well as some enhancements and bug fixes. This release is also
required for Bokeh 2.3 compatibility since a lot of changes to the
Bokeh property system required updates. Many thanks to the many
contributors to this release including @MarcSkovMadsen, @xavArtley,
@hyamanieu, @cloud-rocket, @kcpevey, @kaseyrussell, @miliante,
@AjayThorve and @philippjfr.

Major features:

• A Perspective pane based on the FINOS Perspective library (#2034)
• Implement --autoreload functionality for the Panel server (#1983)
• Add --warm option to panel serve, useful for pre-loading items into the state cache (#1971)
• Add ability to define JS modules and Template specific resources (#1967)
• panel.serve now supports serving static files and Bokeh apps, not just Panel apps (#1939)
• Add a TrendIndicator for conveniently showing history and value of a numeric quantity (#1895)
• Add TextToSpeech widget (#1878)
• Add SpeechToText widget (#1880)
• Add loading parameter and spinners to all components (#1730, #2026)
• Add IDOM pane to develop interactive HTML components in Python (#2004)
• Add powerful new Tabulator widget for flexible and configurable display of tabular data (#1531, #1887)

Enhancements:

• Add watch argument to bind function so that covers all the features of pn.depends (#2000)
• Add format parameter to DatetimeRangeInput widget (#2043)
• Allow ParamMethod and ParamFunction to evaluate lazily (#1966)
• Add value_input parameter to TextInput widgets (#2007)
• Implement Glyph3dMapper support for VTK panes (#2002, #2003)
• Add Jupyter server extension to serve resources (#1982)
• Enhancements for DarkTheme (#1964)
• Add refresh functionality to FileSelector (#1962)
• Add support for Auth0 authentication (#1934)
• Avoid recursive preprocessing slowing down rendering (#1852)
• Add support for per-layer tooltips on DeckGL pane (#1846)
• Add Viewer baseclass for custom user components (#2045)

Bug fixes:

• Fixed FileSelector file icon on selected files (#2046)
• Drop query args when checking URLs (#2037)
• Fix Card.header_background propagation (#2035)
• Disable GoldenTemplate sidebar when empty (#2017)
• Ensure Card.collapsed and Accordion.active parameters are synced (#2009)
• Fix inline resources when saving (#1956)
• Switch Param pane widget type when bounds (un)defined (#1953)

Compatibility:

• Compatibility with Bokeh>=2.3 (#1948, #1988, #1991)
• Updated ECharts pane to 5.0.2 of JS library (#2016)

Documentation:

• Document pn.bind in API user guide (#1973)

Version 0.10.3

Another micro-release in the 0.10.x series focusing primarily on bug and regression fixes. Many thanks to @miliante, @MarcSkovMadsen, @hoxbro, @jlstevens, @jbednar and @philippjfr.

Bug fixes:

• Fix inverted axes on HoloViews plots (#1732)
• Fix enabling/disabling of FileDownload widget (#1510, #1820)
• Fix issues serving template resources on server with route prefix (#1821)
• Fixes for rendering ECharts from pyecharts (#1874, #1876)
• Fix issues with scroll behavior when expanding/collapsing Card/Accordion (#1833, #1884)
• Ensure DiscreSlider label is correctly linked to value (#1906)
• Fix support for setting header_color and header_background on all templates (#1872)
• Ensure that Template preprocessors are applied during initialization (#1922)

Enhancements:

• Support throttled in Param widget (#1800)
• Support rendering of hvPlot Interactive objects (#1824)
• Allow recording session launch time in server session_info (#1909)
• Add Button.value parameter (#1910)
• Support upload of multiple parameters on FileInput (#1911)
• Improve support for DarkTheme in templates (#1855, #1856)

Documentation:

• Fixed IntSlider and FloatSlider example (#1825)
• Updated instructions for using Panel in JupyterLab (#1908)