Version 1.14.6

This is a hotfix release with a number of important bug fixes. Most importantly, this version supports the recent Bokeh 2.4.0 release.
Many thanks to @geronimos, @peterroelants, @douglas-raillard-arm, @philippjfr, and @jlstevens for contributing the fixes in this release.

Bug fixes:

• Compatibility for bokeh 2.4 and fixes to processing of falsey properties and visible style property (#5059, #5063)
• Stricter validation of data.interface before calling subclass (#5050)
• Fix to prevent options being ignored in some cases (#5016)
• Improvements to linked selections including support for linked selection lasso for cudf and improved warnings (#5044, #5051)
• Respect apply_ranges at range computation level (#5081)
• Keep ordering of kdim when stacking Areas (#4971)
• Apply hover postprocessor on updates (#5039)

Version 1.14.5

This is a hotfix release with a number of important bug fixes. Most importantly, this version supports for the recent pandas 1.3.0 release. Many thanks to @kgullikson88, @philippjfr and @jlstevens for contributing the fixes in this release.

Bug fixes:

• Support for pandas>=1.3 (#5013)
• Various bug fixes relating to dim transforms including the use of parameters in slices and the use of getattribute (#4993, #5001, #5005)

Version 1.14.4

This release primarily focuses on a number of bug fixes. Many thanks to @hoxbro, @nitrocalcite, @brl0, @hyamanieu, @rafiyr, @jbednar, @jlstevens and @philippjfr for contributing.

Enhancements:

• Reenable SaveTool for plots with Tiles (#4922)
• Enable dask TriMesh rasterization using datashader (#4935)
• Use dataframe index for TriMesh node indices (#4936)

Bug fixes:

• Fix hover for stacked Bars (#4892)
• Check before dereferencing Bokeh colormappers (#4902)
• Fix multiple parameterized inputs to dim (#4903)
• Fix floating point error when generating bokeh Palettes (#4911)
• Fix bug using dimensions with label on Bars (#4929)
• Do not reverse colormaps with '_r' suffix a second time (#4931)
• Fix remapping of Params stream parameter names (#4932)
• Ensure Area.stack keeps labels (#4937)

Documentation:

• Updated Dashboards user guide to show pn.bind first (#4907)
• Updated docs to correctly declare Scatter kdims (#4914)

Compatibility:

Unfortunately a number of tile sources are no longer publicly available. Attempting to use these tile sources will now issue warnings unless hv.config.raise_deprecated_tilesource_exception is set to
True in which case exceptions will be raised instead.

• The Wikipedia tile source is no longer available as it is no longer being served outside the wikimedia domain. As one of the most frequently used tile sources, HoloViews now issues a warning and switches to the OpenStreetMap (OSM) tile source instead.
• The CartoMidnight and CartoEco tile sources are no longer publicly available. Attempting to use these tile sources will result in a deprecation warning.

Version 1.14.3

This release contains a small number of bug fixes, enhancements and compatibility for the latest release of matplotlib. Many thanks to @stonebig, @hoxbro, @jlstevens, @jbednar and @philippjfr.

Enhancements:

• Allow applying linked selections to chained DynamicMap (#4870)
• Issuing improved error message when radd called with an integer (#4868)
• Implement MultiInterface.assign (#4880)
• Handle tuple unit on xarray attribute (#4881)
• Support selection masks and expressions on gridded data (#4882)

Bug fixes:

• Handle empty renderers when merging HoverTool.renderers (#4856)

Compatibility:

• Support matplotlib versions >=3.4 (#4878)

Version 1.14.2

This release adds support for Bokeh 2.3, introduces a number of minor enhancements, miscellaneous documentation improvements, and a good number of bug fixes.

Many thanks to the many contributors to this release, whether directly by submitting PRs or by reporting issues and making suggestions. Specifically, we would like to thank @philippjfr for the Bokeh 2.3 compatibility updates, @kcpevey, @timgates42, and @scottstanie for documentation improvements as well as @hoxbro and @LunarLanding for various bug fixes. In addition, thanks to the maintainers @jbednar, @jlstevens, and @philippjfr for contributing to this release.

Enhancements:

• Bokeh 2.3 compatibility (#4805, #4809)
• Supporting dictionary streams parameter in DynamicMaps and operations (#4787, #4818, #4822)
• Support spatialpandas DaskGeoDataFrame (#4792)
• Disable zoom on axis for geographic plots (#4812
• Add support for non-aligned data in Area stack classmethod (#4836)
• Handle arrays and datetime ticks (#4831)
• Support single-value numpy array as input to HLine and VLine (#4798)

Bug fixes:

• Ensure link_inputs parameter on operations is passed to apply (#4795)
• Fix for muted option on overlaid Bokeh plots (#4830)
• Check for nested dim dependencies (#4785)
• Fixed np.nanmax call when computing ranges (#4847)
• Fix for Dimension pickling (#4843)
• Fixes for dask backed elements in plotting (#4813)
• Handle isfinite for NumPy and Pandas masked arrays (#4817)
• Fix plotting Graph on top of Tiles/Annotation (#4828)
• Miscellaneous fixes for the Bokeh plotting extension (#4814, #4839)
• Miscellaneous fixes for index based linked selections (#4776)

Documentation:

• Expanded on Tap Stream example in Reference Gallery (#4782)
• Miscellaneous typo and broken link fixes (#4783, #4827, #4844, #4811)

Version 1.14.1

This release contains a small number of bug fixes addressing regressions. Many thanks to the contributors to this release including
@csachs, @GilShoshan94 and the maintainers @jlstevens, @jbednar and @philippjfr.

Bug fixes:

• Fix issues with linked selections on tables (#4758)
• Fix Heatmap alpha dimension transform (#4757)
• Do not drop tools in linked selections (#4756)
• Fixed access to possibly non-existant key (#4742)

Documentation:

• Warn about disabled interactive features on website (#4762)

Version 1.14.0

This release brings a number of major features including a new IbisInterface, new Plotly Dash support and greatly improved Plotly support, and greatly improved interaction and integration with Datashader. Many thanks to the many contributors to this release, whether directly by submitting PRs or by reporting issues and making suggestions. Specifically, we would like to thank @philippjfr, @jonmmease, and @tonyfast for their work on the IbisInterface and @jonmmease for improving Plotly support, as well as @kcpevey, @hoxbro, @marckassay, @mcepl, and @ceball for various other enhancements, improvements to documentation and testing infrastructure. In addition, thanks to the maintainers @jbednar, @jlstevens and @philippjfr for contributing to this release. This version includes a large number of new features, enhancements, and bug fixes.

It is important to note that version 1.14 will be the last HoloViews release supporting Python 2.

Major features:

• New Plotly Dash support (#4605)
• New Plotly support for Tiles element (#4686)
• New IbisInterface (#4517)
• Greatly improved Datashader rasterize() (#4567). Previously, many of the features of Datashader were available only through datashade, which rendered data all the way to RGB pixels and thus prevented many client-side Bokeh features like hover, colorbars, dynamic colormaps, etc. rasterize now supports all these Bokeh features along with nearly all the Datashader features previously only available through datashade, including (now client-side) histogram equalization with cnorm='eq_hist' and easy control of transparency via a new Dimension.nodata parameter. See the Large Data User Guide for more information.

Enhancements:

• Implemented datashader aggregation of Rectangles (#4701)
• New support for robust color limits (clim_percentile) (#4712)
• Support for dynamic overlays in link_selections (#4683)
• Allow clashing Param stream contents (#4677)
• Ensured pandas does not convert times to UTC (#4711)
• Removed all use of cyordereddict (#4620)
• Testing infrastructure moved to GH Actions (#4592)

Bug fixes:

• Ensure RangeXY returns x/y ranges in correct order (#4665) (#4665)
• Fix datashader instability with Plotly by disabling padding for RGB elements (#4705)
• Various Dask and cuDF histogram fixes (#4691)
• Fix handling of custom matplotlib and bokeh colormaps (#4693)
• Fix cuDF values implementation (#4687)
• Fixed range calculation on HexTiles (#4689)
• Use PIL for RGB.load_image (#4639)

Documentation:

• Clarified data types accepted by Points (#4430)
• Updated Introduction notebook (#4682)
• Fixed releases urls (#4672)

Compatibility:

• Warning when there are multiple kdims on Chart elements (#4710)
• Set histogram normed option to False by default (#4258)
• The default colormap in holoviews is now 'kbc_r' instead of 'fire'; see issue #3500 for details. This change was made mainly because the highest value of the fire colormap is white, which meant data was often not visible against a white background. To restore the old behavior you can set hv.config.default_cmap='fire', which you can do via the extension e.g. hv.extension('bokeh', config=dict(default_cmap='fire')). There is also hv.config.default_gridded_cmap which you can set to 'fire' if you wish to use the old colormap for the Raster, Image and QuadMesh element types. The default HeatMap colormap has also been set to 'kbc_r' for consistency and can be set back to the old value of 'RdYlBu_r' via hv.config.default_heatmap_cmap.

Version 1.13.5

This version contains numerous bug fixes and a number of enhancements. Many thanks for contributions by @bryevdv, @jbednar, @jlstevens, @jonmmease, @kcpevey and @philippjfr.

Bug fixes:

• Improvements to iteration over Series in CuDF data backend (#4624)
• Added .values_host calls needed for iteraction in CuDF backend (#4646)
• Fixed bug resetting ranges (#4654)
• Fix bug matching elements to subplots in DynamicMap (#4649)
• Ensure consistent split Violin color assignment (#4650)
• Ensure PolyDrawCallback always has vdim data (#4644)
• Set default align in bokeh correctly (#4637)
• Fixed deserialization of polygon/multi_line CDS data in bokeh backend (#4631)

Enhancements:

• Refactor of link selections streams (#4572)
• Add ability to listen to dataset linked_selection (#4547)
• Added selected parameter to Bokeh PathPlot (#4641)

Documentation:

• Improved Bars reference example, demonstrating the dataframe constructor (#4656)
• Various documentation fixes (#4628)

Version 1.13.4

This version fixes a large number of bugs particularly relating to linked selections. Additionally it introduces some enhancements laying the groundwork for future functionality. Many thanks for contribution by @ruoyu0088, @hamogu, @Dr-Irv, @jonmmease, @justinbois, @ahuang11, and the core maintainer @philippjfr.

Bug fixes:

• Fix the .info property to return the info (#4513)
• Set toolbar=True the default in save() (#4518)
• Fix bug when the default value is 0 (#4537)
• Ensure operations do not recursively accumulate pipelines (#4544)
• Fixed whiskers for BoxWhisker so that they never point inwards (#4548)
• Fix issues with boomeranging events when aspect is set (#4569)
• Fix aspect if width/height has been constrained (#4579)
• Fixed categorical handling in Geom plot types (#4575)
• Do not attempt linking axes on annotations (#4584)
• Reset RangeXY when framewise is set (#4585)
• Add automatic collate for Overlay of AdjointLayouts (#4586)
• Fixed color-ranging after box select on side histogram (#4587)
• Use HTTPS throughout on homepage (#4588)

Compatibility:

• Compatibility with bokeh 2.2 for CDSCallback (#4568)
• Handle rcParam deprecations in matplotlib 3.3 (#4583)

Enhancements:

• Allow toggling the selection_mode on link_selections from the context menu in the bokeh toolbar (#4604)
• Optimize options machinery (#4545)
• Add new Derived stream class (#4532)
• Set Panel state to busy during callback (#4546)
• Support positional stream args in DynamicMap callback (#4534)
• legend_opts implemented (#4558)
• Add History stream (#4554)
• Updated spreading operation to support aggregate arrays (#4562)
• Add ability to supply dim transforms for all dimensions (#4578)
• Add 'vline' and 'hline' Hover mode (#4527)
• Allow rendering to pgf in matplotlib (#4577)

Version 1.13.3

This version introduces a number of enhancements of existing functionality, particularly for features introduced in 1.13.0,
e.g. cuDF support and linked selections. In addition it introduces a number of important bug fixes. Many thanks for contribution by @kebowen730, @maximlt, @pretros1999, @alexbraditsas, @lelatbones, @flothesof, @ruoyu0088, @cool-PR and the core maintainers @jbednar and @philippjfr.

Enhancements:

• Expose center as an output rendering option (#4365)
• Configurable throttling schemes for linked streams on the server (#4372)
• Add support for lasso tool in linked selections (#4362)
• Add support for NdOverlay in linked selections (#4481)
• Add support for unwatching on Params stream (#4417)
• Optimizations for the cuDF interface (#4436)
• Add support for by aggregator in datashader operations (#4438)
• Add support for cupy and dask histogram and box-whisker calculations (#4447)
• Allow rendering HoloViews output as an ipywidget (#4404)
• Allow DynamicMap callback to accept key dimension values as variable kwargs (#4462)
• Delete toolbar by default when rendering bokeh plot to PNG (#4422)
• Ensure Bounds and Lasso events only trigger on mouseup (#4478)

Bug fixes:

• Eliminate circular references to allow immediate garbage collection (#4368, #4377)
• Allow bytes as categories (#4392)
• Fix handling of zero as log colormapper lower bound (#4383)
• Do not compute data ranges if Dimension.values is supplied (#4416)
• Fix RangeXY updates when zooming on only one axis (#4413)
• Ensure that ranges do not bounce when data_aspect is set (#4431)
• Fix bug specifying a rotation for Box element (#4460)
• Fix handling of datetimes in bokeh RectanglesPlot (#4461)
• Fix bug normalizing ranges across multiple plots when framewise=True (#4450)
• Fix bug coloring adjoined histograms (#4458)
• Fix issues with ranges bouncing when PlotSize stream is attached (#4480)
• Fix bug with hv.extension(inline=False) (#4491)
• Handle missing categories on split Violin plot (#4482)