Panel

Date: 2021-07-18

Blog post: https://blog.holoviz.org/panel_0.12.0.html

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

Enhancements:

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

Bug fixes:

- Fix missing video in `Video` ([2109](https://github.com/holoviz/panel/issues/2109))
- use idom.config to set dist dir ([2117](https://github.com/holoviz/panel/issues/2117))
- Remove bootstrap CSS from `FastGridTemplate` ([2123](https://github.com/holoviz/panel/issues/2123))
- Fix issues with `Ace` z-index ([2126](https://github.com/holoviz/panel/issues/2126))
- Fix updating of `Tabulator` selection property ([2128](https://github.com/holoviz/panel/issues/2128))
- Ensure changes on ReactiveData source are scheduled correctly ([2134](https://github.com/holoviz/panel/issues/2134))
- Fixed `Player` looping when start is 0 ([2141](https://github.com/holoviz/panel/issues/2141))
- Fix divide by zero issues on Trend indicator ([2148](https://github.com/holoviz/panel/issues/2148))
- Ensure `GridSpec` override handles duplicate matches ([2150](https://github.com/holoviz/panel/issues/2150))
- Fix for `loading` parameter widget linking ([2160](https://github.com/holoviz/panel/issues/2160))
- Fix `Tabulator` ajax call on empty data ([2161](https://github.com/holoviz/panel/issues/2161))
- Fix `Tabulator` sorting and data initialization ([2163](https://github.com/holoviz/panel/issues/2163))
- Fix editing `Tabulator` with filters applied ([2165](https://github.com/holoviz/panel/issues/2165))
- Fix theming on `HoloViews` plot updates ([2209](https://github.com/holoviz/panel/issues/2209))
- Fixed data handling on `Perspective` pane ([2212](https://github.com/holoviz/panel/issues/2212))
- Improve template and resource management for png export ([2221](https://github.com/holoviz/panel/issues/2221))
- Improve and standardize selection behavior of `Tabulator` ([2230](https://github.com/holoviz/panel/issues/2230))
- Ensure JS changes to `Plotly` pane are applied if not explicitly triggered ([2251](https://github.com/holoviz/panel/issues/2251))
- Fix server-side Tabulator selection changes ([2252](https://github.com/holoviz/panel/issues/2252))
- Fix update of `Param` subobjects ([2255](https://github.com/holoviz/panel/issues/2255))
- Add support for `vtkCornerAnnotations` ([2257](https://github.com/holoviz/panel/issues/2257))
- Improve request handling for remote pagination on `Tabulator` ([2265](https://github.com/holoviz/panel/issues/2265))
- Allow setting `Param` precedence to None ([2266](https://github.com/holoviz/panel/issues/2266))
- Disable nested field separators on `Tabulator` ([2289](https://github.com/holoviz/panel/issues/2289))
- Fix errors when applying `Perspective` filters ([2300](https://github.com/holoviz/panel/issues/2300), [#2521](https://github.com/holoviz/panel/issues/2521))
- Ensure `Param` pane handles changes to unknown parameter ([2346](https://github.com/holoviz/panel/issues/2346))
- Fix issues with local `Audio` and `Video` ([2380](https://github.com/holoviz/panel/issues/2380))
- Ensure `ReactiveData` emits correct old data in event ([2398](https://github.com/holoviz/panel/issues/2398))
- Ensure `Plotly` interactivity works when `Plotly` panes are displayed in tabs ([2418](https://github.com/holoviz/panel/issues/2418), [#2463](https://github.com/holoviz/panel/issues/))
- Fix `Ace` widget disabled parameter ([2449](https://github.com/holoviz/panel/issues/2449))
- Ensure external resources are configured correctly on save ([2452](https://github.com/holoviz/panel/issues/2452))
- Ensure table formatters and editors are copied on render to avoid bokeh errors ([2453](https://github.com/holoviz/panel/issues/2453))
- Allow unicode auth response body ([2462](https://github.com/holoviz/panel/issues/2462))
- Workaround TypeError for non-string json keys on `Plotly` pane ([2465](https://github.com/holoviz/panel/issues/2465))
- Fix issue with throttled updates on Param ([2470](https://github.com/holoviz/panel/issues/2470))
- Ensure `Tabulator` style is applied while streaming ([2478](https://github.com/holoviz/panel/issues/2478))
- Fix issues setting resources on save ([2492](https://github.com/holoviz/panel/issues/2492))
- Fix `VideoStream` unpause ([2508](https://github.com/holoviz/panel/issues/2508))
- Ensure `DataFrame` and `Tabulator` widget data can be updated in callback ([2510](https://github.com/holoviz/panel/issues/2510))
- Fix chaining of `bind` functions ([2513](https://github.com/holoviz/panel/issues/2513))
- Fix broken serialisation when syncing url parameters ([2520](https://github.com/holoviz/panel/issues/2520))
- Fix `Perspective` for string types ([2525](https://github.com/holoviz/panel/issues/2525))
- Fix race condition in `--autoreload` ([2539](https://github.com/holoviz/panel/issues/2539))

Documentation:

- Update `Server_Deployment.ipynb` ([2118](https://github.com/holoviz/panel/issues/2118))
- Expand description of `watch=True` in `Param.ipynb` ([2120](https://github.com/holoviz/panel/issues/2120))
- Switch to PyData Sphinx Theme ([2139](https://github.com/holoviz/panel/issues/2139))
- Replace altair iris example with penguins ([2213](https://github.com/holoviz/panel/issues/2213))
- Enable Binder ([2198](https://github.com/holoviz/panel/issues/2198))
- Updates and fixes for Developer Guide ([2381](https://github.com/holoviz/panel/issues/2381))
- Fixed `Tabs` documentation ([2448](https://github.com/holoviz/panel/issues/2448))
- Added basic description and example of the `Tabulator.configuration` parameter ([2412](https://github.com/holoviz/panel/issues/2412))
- Add parameters to `Plotly` reference guide ([2385](https://github.com/holoviz/panel/issues/2385))
- Add useful links to developer docs ([2319](https://github.com/holoviz/panel/issues/2319))
- Add documentation about parameterized components ([2454](https://github.com/holoviz/panel/issues/2454))
- Demonstrate how to lazily load tabs ([2479](https://github.com/holoviz/panel/issues/2479))

Compatibility:

- Compatibility with HoloViews 2.0 ([2344](https://github.com/holoviz/panel/issues/2344))
- Fix Tabulator styling with pandas 1.3 ([2512](https://github.com/holoviz/panel/issues/2512))

Deprecations:

- Remove add_periodic_callback method ([2439](https://github.com/holoviz/panel/issues/2439))
- Remove deprecated panel.callbacks modules
- Remove deprecated Ace pane and Audio Widget ([2427](https://github.com/holoviz/panel/issues/2427))
- Remove Progress widget docs ([2451](https://github.com/holoviz/panel/issues/2451))
- Tabulator no longer loaded by default, must be initialized with `pn.extension('tabulator'](https://github.com/holoviz/panel/issues/))` ([#2364](https://github.com/holoviz/panel/issues/2364))

Date: 2021-04-14

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](https://github.com/holoviz/panel/issues/2163))
- Improved handling of `IDOM` build directory ([2168](https://github.com/holoviz/panel/issues/2168))

Documentation:

- Switch to PyData Sphinx Theme ([2139](https://github.com/holoviz/panel/issues/2139))

Date: 2021-04-08

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](https://github.com/holoviz/panel/issues/2096))
- Use schema to support date(time) dtypes on `Perspective` ([2130](https://github.com/holoviz/panel/issues/2130))

Bug fixes:

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

Documentation:

- Fix typo in Binder section of server deployment documentation ([2118](https://github.com/holoviz/panel/issues/2118))
- Improve documentation surrounding watch=True in Param user guide ([2120](https://github.com/holoviz/panel/issues/2120))

Compatibility:

- Ensure IDOM pane configures paths correctly for latest version ([2117](https://github.com/holoviz/panel/issues/2127), [#2132](https://github.com/holoviz/panel/issues/2132))

Date: 2021-03-15

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](https://github.com/holoviz/panel/issues/2072))
- Expose widgets `visible` property ([2065](https://github.com/holoviz/panel/issues/2065))
- Allow bind to extract dependencies and evaluate other dynamic functions ([2056](https://github.com/holoviz/panel/issues/2056))
- Allow setting `root_directory` on `FileSelector` widget ([2086](https://github.com/holoviz/panel/issues/2086()

Bug fixes:

- Fixed loading of jQuery in `BootstrapTemplate` ([2057](https://github.com/holoviz/panel/issues/2057))
- Fix VTK imports to ensure `VTKVolume` pane renders grids ([2071](https://github.com/holoviz/panel/issues/2071))
- Fix loading of template resources from relative paths ([2067](https://github.com/holoviz/panel/issues/2067))
- Fix `Spinner` component overflow ([2070](https://github.com/holoviz/panel/issues/2070))
- Handle integer column names on `Perspective` widget ([2069](https://github.com/holoviz/panel/issues/2069))
- Fix bundling of template resources ([2076](https://github.com/holoviz/panel/issues/2076))
- Fix `value_throttled` in `pn.depends` decorator ([2085](https://github.com/holoviz/panel/issues/2085))

Compatibility:

- Switch GitHub OAuth to use header authorization token ([2073](https://github.com/holoviz/panel/issues/2073))

Date: 2021-03-01

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

Enhancements:

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

Bug fixes:

- Fixed `FileSelector` file icon on selected files ([2046](https://github.com/holoviz/panel/issues/2046))
- Drop query args when checking URLs ([2037](https://github.com/holoviz/panel/issues/2037))
- Fix `Card.header_background` propagation ([2035](https://github.com/holoviz/panel/issues/2035))
- Disable `GoldenTemplate` sidebar when empty ([2017](https://github.com/holoviz/panel/issues/2017))
- Ensure `Card.collapsed` and `Accordion.active` parameters are synced ([2009](https://github.com/holoviz/panel/issues/2009))
- Fix inline resources when saving ([1956](https://github.com/holoviz/panel/issues/1956))
- Switch `Param` pane widget type when bounds (un)defined ([1953](https://github.com/holoviz/panel/issues/1953))

Compatibility:

- Compatibility with Bokeh>=2.3 ([1948](https://github.com/holoviz/panel/issues/1948), [#1988](https://github.com/holoviz/panel/issues/1988), [#1991](https://github.com/holoviz/panel/issues/1991))
- Updated `ECharts` pane to 5.0.2 of JS library ([2016](https://github.com/holoviz/panel/issues/2016))

Documentation:

- Document pn.bind in API user guide ([1973](https://github.com/holoviz/panel/issues/1973))

Date: 2021-01-18

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

Enhancements:

- Support throttled in Param widget ([1800](https://github.com/holoviz/panel/pull/1800))
- Support rendering of hvPlot Interactive objects ([1824](https://github.com/holoviz/panel/issues/1824))
- Allow recording session launch time in server session_info ([1909](https://github.com/holoviz/panel/pull/1909))
- Add Button.value parameter ([1910](https://github.com/holoviz/panel/issues/1910))
- Support upload of multiple parameters on FileInput ([1911](https://github.com/holoviz/panel/pull/1911))
- Improve support for DarkTheme in templates ([1855](https://github.com/holoviz/panel/pull/1855), [#1856](https://github.com/holoviz/panel/pull/1856))

Documentation:

- Fixed IntSlider and FloatSlider example ([1825](https://github.com/holoviz/panel/pull/1825))
- Updated instructions for using Panel in JupyterLab ([1908](https://github.com/holoviz/panel/pull/1908))