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@jlstevens jlstevens released this 03 Nov 14:15
· 2076 commits to main since this release
v1.9.0
a3c4e7e

This release includes a large number of long awaited features, improvements and bug fixes, including streaming and graph support, binary transfer of bokeh data, fast Image/RGB regridding, first-class statistics elements and a complete overhaul of the geometry elements.

Particular thanks to all users and contributers who have reported issues and submitted pull requests.

Features:

  • The kdim and vdim keyword arguments are now positional making the declaration of elements much less verbose (e.g. Scatter(data, 'x', 'y')) (#1946)
  • Added Graph, Nodes, and EdgePaths elements adding support for plotting network graphs (#1829)
  • Added datashader-based regrid operation for fast Image and RGB regridding (#1773)
  • Added support for binary transport when plotting with bokeh, providing huge speedups for dynamic plots, including those from datashader (#1894, #1896)
  • Added Pipe and Buffer streams for streaming data support (#2011)
  • Add support for datetime axes on Image and RGB, and when applying datashading and regridding operations (#2023)
  • Added Distribution and Bivariate as first-class elements that can be plotted with matplotlib and bokeh without depending on seaborn, and thus now fully interactive in bokeh (#1985)
  • Completely overhauled support for plotting geometries with Path, Contours and Polygons elements, including support for coloring individual segments and paths by value (#1991)

Enhancements:

  • Add support for adjoining all elements on matplotlib plots (#1033)
  • Improved exception handling for data interfaces (#2041)
  • Add groupby argument to histogram operation (#1725)
  • Add support for reverse sort on Dataset elements (#1843)
  • Added support for invert_x/yaxis on all elements (#1872, #1919)

Fixes:

  • Fixed a bug in matplotlib causing the first frame in gif and mp4 getting stuck (#1922)
  • Fixed various issues with support for new nested categorical axes in bokeh (#1933)
  • A long list of other bug fixes, too many to list here.

Changes affecting backwards compatibility:

  • The contours operation no longer overlays the contours on top of the supplied Image by default and returns a single Contours/Polygons rather than an NdOverlay of them (#1991)
  • The values of the Distribution element should now be defined as a key dimension (#1985)
  • The seaborn interface was removed in its entirety being replaced by first class support for statistics elements such as Distribution and Bivariate (#1985)
  • Since kdims and vdims can now be passed as positional arguments the bounds argument on Image is no longer positional (#1946).
  • The datashade and shade cmap was reverted back to the datashader default blue, due to confusing behavior of the fire cmap against a white background (#2078)
  • Dropped all support for bokeh versions older than 0.12.10, which was not being tested and was making the code complex and error-prone
  • histogram operation now returns Histogram elements with less generic value dimension and customizable label (#1836)
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