Version 0.12.1

The 0.12.1 release is a patch release that brings a few bugfixes and enhancements, and most importantly adds a new extended Gallery top-level section with about 50 examples, replacing the previous and limited Reference Gallery. Many thanks to @kmnhan (first contribution!), @hoxbro, @Azaya89, and @maximlt for their contributions!

Enhancements:

• hvplot.show supports displaying Param/Panel reactive expressions (#1651)

Bug Fixes:

• Fix error raised when importing sampledata and hvsampledata is not installed (#1649)
• Ensure the hist plotting method uses bin_range (#1663)

Documentation:

• Add new examples Gallery and remove the old Reference Gallery (#1603)
• Add admonitions to keywords added in version 0.12.0 (#1650)
• Document the sampledata module added in version 0.12.0 (#1646)

Infrastructure / Tests:

• Upload documentation build artifacts (#1655)
• Fix auto-triage bot (#1631)

Full Changelog

Version 0.12.0

This minor release brings extensive documentation improvements, exposes new HoloViews options, and brings a few bugfixes. Check out the release blog post for a visual overview of the key updates.

• 📚 Major expansion and improvement of the reference documentation, covering all plotting options and methods
• 🔢 Ability to switch between multiple versions of hvPlot on the website
• 🔍 A new selector option for sample hover info on datashaded plotsunindent.
• 🧰 Toolbar customization with toolbar and autohide_toolbar
• 📊 Flexible legends with the new legend_cols and legend_opts options
• 🖌️ Advanced styling enabled by the backend_opts option
• 📦 A new sampledata module for easy access to sample datasets
• 🐍 Dropped Python 3.9 support

Many thanks to @ahuang11, @hoxbro, @Azaya89, and @maximlt for their contributions!

Enhancements:

• Add the selector option to display sample information on hover for rasterized/datashaded plots (#1585)
• Add the toolbar and autohide_toolbar options (#1634)
• Add the backend_opts option (#1635)
• Add the legend_cols and legend_opts options (#1636)
• Add support for log10 binning for histograms with logx and loglog (#1593)
• Add the sampledata module (#1628)

Bug Fixes:

• Fix handling CRS translation (#1600)
• Remove unused piece of code (#1588)
• Minor fixes to andrews_curves (#1563)

Documentation:

• Document all the plotting options:
  • Document the data options (#1555)
  • Document the size and layout options (#1545)
  • Document the grid and legend options (#1576)
  • Document the styling options (#1574)
  • Document the interactivity options (#1587)
  • Document resampling, geographic, and streaming options (#1601)
  • Document axis options and minor changes (#1618)
• Improve the documentation of all the plotting methods and functions (#1548)
• Add a version switcher to the site (#1533, #1597)
• Various documentation enhancements (#1625)
• Improve the logo sizing in the README (#1632)

Deprecation:

• Deprecate hover_formatters (#1637)
• Deprecate the debug argument (#1560)
• Deprecate handling of DuckDB objects in the plot function (#1561)

Compatibility:

• Drop Python 3.9 support (#1608)

Packaging:

• Build sdist and wheel with hatchling instead of setuptools (#1558)

Infrastructure / Tests:

• Enable branch coverage (#1589)
• Add auto-label action (#1584)
• Bump pre-commit and run on all files (#1559)

Full Changelog

Version 0.11.3

The 0.11.3 release is a patch release that brings a few bugfixes, migrates the developer tooling to pixi, and most importantly kicks off a large project - partially funded by NumFocus - aiming to improve the documentation by adopting the Diátaxis framework. This release brings a new Reference section including a complete API reference, a new Tutorials section with a refactored version of the Getting Started and a new tutorial for users coming from Pandas. Many thanks to @Azaya89, @hoxbro, and @maximlt for their contributions!

Bug Fixes:

• Refactor and improve patching of the plotting methods docstring and signature (#1520)
• Fix setting xaxis/yaxis as string (#1497)
• Fix OHLC x-axis tooltip to handle datetime format (#1493)
• Fix calling special Pandas plotting methods with Pandas backend set to 'hvplot' (#1491)

Documentation:

• Various improvements before the release (#1553)
• Add Getting started with Pandas tutorial (#1535)
• Extend the Pandas API compatibility reference (#1482)
• Extend the reference with the plotting API and more (#1530)
• Add hvsampledata to the docs dependencies (#1543)
• Refactor the Getting Started tutorial to one page (#1476)
• Complete the signature of plot methods with all their kind options (#1523)
• Automatically document the generic plot options (#1526)
• Document extra keywords caught internally (#1519)
• Document the stacked docstring directly in the relevant methods (#1517)
• Re-categorize HoloViewsConverter docstring and add missing keywords in the correct special lists (#1514)
• Document keywords not in the HoloViewsConverter docstring (#1511)
• Removed 'Home' from website index and replace hide-cell with remove-cell (#1477)

Compatibility:

• No longer use some deprecated Param API (#1537)
• Declare Python 3.13 support (#1532)

Infrastructure / Tests:

• Add lower pin to ibis-duckdb (#1542)
• Parallelize the docs build and run on macOS (#1531)
• Run unit tests with param warnings as exceptions by default (#1528)
• Add tests to help ensure the generic options are documented (#1527)
• Align pixi developer commands with HoloViews (#1502)
• Only publish the conda package on a push event (#1495)
• Migrate to pixi (#1470, #1474, #1494)

Full Changelog

Version 0.11.2

The 0.11.2 release is a patch release that brings a few important bugfixes. Many thanks to @tomchor (first contribution!), @ahuang11, @Azaya89, @hoxbro, and @maximlt for their contributions!

Bug Fixes:

• Stop using HoloViews private API to get datashader's version in scatter_matrix (#1446)
• Fix geoviews availability logic in the Explorer (#1451)
• Do not attempt to auto-project a spatialpandas geodataframe (#1459)
• Check cmap type before comparing to categories (#1462)

Documentation:

• Fix typo in the Explorer docs (#1455)

Full Changelog

Version 0.11.1

The 0.11.1 release is a patch release that brings a few bugfixes and documentation improvements. In particular it fixes a regression introduced in version 0.11.0 leading to an error when a plot is created from a Dask object with tiles=True. Many thanks to @Palmr (first contribution!), @ahuang11, @hoxbro, @maximlt, and @philippjfr for their contributions!

Bug Fixes:

• Fix regression when tiles=True with Dask (#1432)
• Fix hover tooltips for NetworkX plots (#1439)

Documentation:

• Add nb_interactivity_warning extension (#1444)
• Document Ruff’s allowed-unused-imports (#1436)
• Update image links in README (#1433)
• Minor fixes (#1434)

Tests:

• Mark test_explorer_geo_revise_kind with geo marker (#1426)

Full Changelog

Version 0.11.0

This minor release brings a number of enhancements and bugfixes, checkout the release blog post for a visual summary of the most important changes.

• 🦆 New integration: DuckDB!
• 🗺️ Automatic latitude/longitude conversion when displaying a tile map
• 💹 Support for displaying subcoordinate y-axis
• 🏄 New hover options: hover_tooltips and hover_formatters
• 🐼 Optimized Pandas index support
• 🐛 Fixing "No output in jupyter"
• ➕ Update of the minimum version of the dependencies

Many thanks to @Azaya89, @liufeimath and @philipc2 for their first contributions, to @iuryt for contributing again, and to the maintainers @ahuang11, @hoxbro, @maximlt and @philippjfr!

Enhancements:

• Add DuckDB integration (#1398)
• Add pixel_ratio keyword, useful when datashade/rasterize=True (#1411)
• Automatically convert lonlat to xy when tiles=True (#1377)
• Add hover_tooltips and hover_formatters keywords, and better document hover (#1385, #1415)
• Add subcoordinate_y keyword (#1379)
• Optimize handling of wide datasets and Pandas indexes (#1350)
• Add cticks keyword (#1368)
• Optimize the geographic part of the explorer (#1353)
• Support using by with hvplot.labels() to color the text (#1347)

Bug Fixes:

• Ensure hvplot. hooks are run on every import (#1359)
• Warn on imposing max rows, fix for curve and increase MAX_ROWS to 100,000 (#1408)
• Do not set bin_range if shared_axes=False (#1391)
• Fix date sorting of multi index Pandas dataframes (#1363)
• Fix geopandas type check to handle None geometry (#1367)
• Do not mutate data when using custom text format (#1352)

Compatibility:

• Handle new Polars PerformanceWarning (#1418)
• Add dask-geopandas check to is_geodataframe function (#1396)
• Require HoloViews>=1.19.0, bump other dependencies, and drop Python 3.8 (#1355)

Documentation:

• Fix missing images and image links (#1422)
• Add interactive downsampling large vector fields (#1372)
• Add customization for the subplots example (#1371)
• Document Jupyter notebook requirements (#1392)
• Replace geopandas.datasets by geodatasets in the examples (#1362)
• Add paths reference notebook (#1354, #1384)
• Document the downsample and resample_when parameters (#1344)

Infrastructure / Tests:

• Use psutil logical for test examples (#1404)
• Remove tests for polars.plot (#1403)
• Use bokeh_sampledata in CI (#1387)
• Conditionally skip testing the Gridded data user guide (#1383)

Full Changelog

Version 0.10.0

This minor release brings a number of enhancements and bugfixes, checkout the release blog post for a visual summary of the most important enhancements.

• 🧰 Improving the contributor experience: moving away from pyctdev to a more usual and easier approach, and adopt ruff as a linter and formatter
• 📦 Modernizing hvPlot's packaging: migrating to pyproject.toml
• 📖 Improving the documentation: adding a user guide on large time-series and improving the geographic user guide
• 📈 Enhancing the plotting API: in part to support the NumFocus SDG project that aims to modernize the HoloViz Examples
• 🐛 Fixing bugs!

Many thanks to @ahuang11, @droumis, @hoxbro, @jsignell, and @maximlt for their contributions.

Governance:

• Andrew (@ahuang11) promoted as Maintainer! (#1267)

Enhancements:

• Add bgcolor parameter to set the background color (#1308)
• Add robust parameter, similarly to Xarray (#1291)
• Add tiles_opts parameter to customize the tiles (#1299)
• Add support to xyzservices tiles (#1307)
• Allow to set the downsample algorithm as string input (#1314)
• Allow crs as Cartopy class name to match projection (#1332)

Bug Fixes:

• Fix saving Panel objects with hvplot.save (#1297)
• Fix setting group_label when plotting a histogram (#1310)
• Fix the support of HoloViews ImageStack support and usage of aggregator and by (#1316)
• Fix handling of EPSG codes (#1330)
• Explorer: fix handling of Xarray objects that have dims without coords (#1334)

Compatibility:

• Minor changes in preparation of the HoloViews Pandas index refactor (#1281)

Documentation:

• Add user guide for working with large time-series datasets (#1302)
• Clarify the geographic user guide (#1269, #1299)
• Misc (#1266, #1268, #1319)

Infrastructure / Tests:

• Migrate to pyproject.toml and improve the contributor experience (#1296, #1322)
• Format and lint the code base with ruff (#1320)
• Pin intake to version 2.0.0 (#1275)
• Fix the test suite after the latest Dask release (#1298)
• Remove the examples folder (#1287)
• Install the tests dependencies primarily with pip (#1276)
• Misc (#1317, #1321, #1323, #1324, #1327)

Full Changelog

Version 0.9.2

The 0.9.2 release is a patch release that brings a few bugfixes and documentation improvements, improving Polars support and documentation. Many thanks to @kevinheavey (first contribution!), @MarcoGorelli, @hoxbro, and @maximlt for their contributions.

Bug fixes:

• Correctly fall back to all numeric Polars columns when y is not specified (#1247)

Documentation:

• Better expose Polars support (#1262)
• Rename the Pandas reference section to Tabular (#1260)
• Add roadmap for 2024 (#1253)
• Various small changes (#1255 and #1261)

Infrastructure / Tests:

• Add downstream Polars test (#1243)
• Compatibility with Pandas 2.2 (#1257)
• Dynamically generate the unit test matrix and add a cache option (#1235)

Full Changelog

Version 0.9.1

The 0.9.1 release brings a number of enhancements, bugfixes and documentation improvements. Many thanks to @iuryt (first contribution!), @MarcoGorelli (first contribution!), @ahuang11, @hoxbro and @maximlt for their contributions.

Enhancements:

• Explorer: give more space to the plot and various UI tweaks (#1197, #1198, #1199, #1225)
• Explorer: disable the geographic controls when geoviews is not installed (#1223)
• Explorer: change the default plot type from line to scatter (#1228)
• Support polars objects in the hvplot.plot entrypoint (#1219, #1222)

Bug fixes:

• Fix ignoring hover_cols in OHLC plots (#1216)
• Fix considering datashaded plots with one y variable as categorical (#1231)
• Fix displaying Panel objects returned by hvPlot with show (#1230)

Documentation:

• Replace Google Analytics with GoatCounter (#1224)
• Indicate that Stamen tiles require a Stadia account (#1226)
• Reintroduce colorbars in the Matplotlib guide (#1229)
• Misc (#1186, #1195)

Maintenance:

• Bump the minimum Param version to 1.12.0 (#1227)

Full changelog

Version 0.9.0

The 0.9.0 release is a minor release with some exciting new features and a large number of bug fixes and enhancements. Many thanks to @rdesai9 (first contribution!), @dogbunny (first contribution!), @bikegeek (first contribution!), @ahuang11, @droumis, @hoxbro, @MarcSkovMadsen, @maximlt and @philippjfr for their contributions. A special thanks to @ahuang11 and @hoxbro without who these release notes would be much shorter!

New features:

• The Explorer has been extended with the following features:
  • Support for Xarray data, enhanced geographic support and add a live update checkbox (#1141)
  • Display the code snippet within a tab (#1156)
  • Allow defining options passed to plot.opts() (#1171)
• Add experimental Fugue integration (#1102)
• Add basic Polars integration (#1129)

Enhancements:

• Add .hvplot.explorer() as an alternate entry point to create an explorer (#1154)
• Add the resample_when option to dynamically enable datashade/rasterize/downsample (#1103)
• Expose the HoloViews timeseries downsampling algorithm (LTTB) with the downsample option (#1127, #1157)
• Expose the HoloViews autorange option (#1128, #1158, #1174)
• Allow string formatting for labels plots (#1140)
• Support plots that use by with rasterize with HoloViews ImageStack (#1132, #1144)
• Update show to return the configured Server or StoppableThread (#1121)

Bug fixes:

• Do not force geo=True if tiles are provided (#1083, #1113)
• Fix x-limit, y-limit, and rasterize support for geo features (#1135, #1163)
• Fix handling WKT strings and add pyproj.CRS support (#1092, #1139)
• Underlay land and ocean features (#1151)
• Fix .hist for the Ibis data source (#997)
• No longer suggest installing datashader and geoviews from the pyviz channel (#1130)
• Silence GDAL exceptions warning (#1142)

Documentation:

• Various docs improvements and addition of an Integrations guide (#1084, #1173, #1177)
• Extending the reference gallery (#999)
• Added extra size parameter to scatter plot example (#1118)

Compatibility:

• Preparations before the release of Param 2.0 (#1146, #1164)
• Pin Param to <3.0 (#1175)
• Drop Python 3.6 and 3.7 (#1077)

Infrastructure / Tests:

• Add Dask DataFrame plot test (#1131)
• Add codespell to pre-commit (#1172)
• Add OpenCollective sponsor link on the repo page (#1123)

Full changelog