v5.3.0

• Updated Plotly.js to from version 2.3.1 to version 2.4.1. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • Added legend.groupclick options
  • Provide bbox of hover items in event data

v5.2.2

Fixed

• Fixed error when using the orjson engine with non-string keys #3351

v5.2.1

See the full release announcement here: https://community.plotly.com/t/announcing-plotly-py-5-2-1-trendlines-ecdf-plots-markers-on-lines-sharper-webgl-legend-group-titles/55681

Updated

• Updated Plotly.js to from version 2.2.0 to version 2.3.1. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • new projections in geo subplots from a more recent version of d3-geo
  • new number-formatting directives from a more recent version of d3-format
  • Improve rendering of scattergl, splom and parcoords by implementing plotGlPixelRatio for those traces
  • performance improvements and bug fixes

Added

• Extra flags were added to the gapminder and stocks dataset to facilitate testing, documentation and demos #3305
• All line-like Plotly Express functions now accept markers argument to display markers, and all but line_mapbox accept symbol to map a field to the symbol attribute, similar to scatter-like functions #3326
• px.scatter and px.density_contours now support new trendline types 'rolling', 'expanding' and 'ewm' #2997
• px.scatter and px.density_contours now support new trendline_options argument to parameterize trendlines, with support for constant control and log-scaling in 'ols' and specification of the fraction used for 'lowess', as well as pass-through to Pandas for 'rolling', 'expanding' and 'ewm' #2997
• px.scatter and px.density_contours now support new trendline_scope argument that accepts the value 'overall' to request a single trendline for all traces, including across facets and animation frames #2997
• A new px.ecdf() function for Empirical Cumulative Distribution Functions #3330

Fixed

• Fixed regression introduced in version 5.0.0 where pandas/numpy arrays with dtype of Object were being converted to list values when added to a Figure (#3292, #3293)
• Better detection of Chrome and Chromium browsers in the Renderers framework, especially on Linux (#3278) with thanks to @c-chaitanya for the contribution

v5.1.0

• Updated Plotly.js from version 2.1.0 to version 2.2.0. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • new <trace>.legendgrouptitle attribute for legend group titles
  • new %h text formatting directive for half-years
  • performance improvements and bug fixes

v5.0.0 - a new federated Jupyter extension, Icicle charts, and Bar chart patterns

See the full release announcement here: https://community.plotly.com/t/introducing-plotly-py-5-0-0-a-new-federated-jupyter-extension-icicle-charts-and-bar-chart-patterns/54039

Updated/Changed

Items in this section may be considered backwards-incompatible changes for the purposes of Semantic Versioning but we expect the vast majority of users to be able to upgrade to version 5.0 without encountering any issues.

• Dropped support for Python older than 3.6 #3160
• Updated Plotly.js to from version 1.58.4 to version 2.1.0. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • dropped support for IE9 and IE10
  • dropped support for long-deprecated graph_objects like area traces and scatter.(t|r) and layout.(radial|angular)axis attributes
  • modebar no longer has hovermode or spikeline buttons by default (can be added back with fig.update_layout(modebar_add=["v1hovermode", "toggleSpikeLines"]))
  • "Aa" text no longer appears on legend items unless mode="text"
  • In bar traces, textposition now defaults to "auto"
  • Font size for legend and colorbar titles now matches axis title font size (slightly bigger)
  • deprecated heatmapgl, pointcloud traces as well as all transform attributes
• Combined plotlywidget into jupyterlab-plotly and packaged them as a federated extension #3142 with massive thanks to @fcollonval for the contribution
  • In addition to this change, large Plotly.js bundles are now lazily loaded on-demand by JupyterLab
• Plotly.js CDN url will now be versioned by default for HTML exports using include_plotlyjs='cdn' and for "connected" renderers. #2961 with thanks to @adehad for the contribution
• Recommending Kaleido by default over Orca #3094
• Replaced retrying dependency with tenacity #2911 with thanks to @jmsmdy for the contribution
• Plotly Express now always takes into account every value in category_orders when computing discrete mappings (color, symbol, line-dash, pattern-shapes) as well as facets, even those values which are absent in the data #3247

Added

• Additions due to bumping Plotly.js from 1.58.4 to 2.1.0 (see changelog):
  • New icicle trace type, with thanks to @Kully and @mtwichan of Zyphr for their contribution!
  • New marker.pattern options for bar-like trace types with thanks to @s417-lama for the contribution!
  • New legendrank attribute to control rank of traces within legends
• Plotly Express' px.bar(), px.histogram() and px.bar_polar() now support the pattern_shape argument #3252
• New Plotly Express px.icicle() function, with thanks to @Kully and @mtwichan of Zyphr for their contribution! #3256
• New functions in plotly.colors: get_colorscale() and sample_colorscale() #3136 and #3186 with thanks to @CarlAndersson for the contributions
• Faster JSON encoding when orjson is present #2955

Fixed

• Pandas and Numpy datetime serialization fixes #3022
• Fixed selected points of histograms in FigureWidget #2771 with thanks to @meffmadd for the contribution
• Static image export now honors layout.(width|height)#3240
• Improvements to "matplotlylib" conversion utility in plotly.tools.mpl_to_plotly() with thanks to @fdion #3143

v5.0.0rc2

Find out more about the RC process on our Forum: https://community.plotly.com/t/plotly-py-5-0-is-coming-soon-try-the-release-candidate-today/53470

Updated

• Updated Plotly.js to version 2.0.0. See the plotly.js 2.0.0 CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • new marker.pattern options for bar-like trace types
  • dropped support for IE9 and IE10
  • dropped support for long-deprecated graph_objects like area traces and scatter.(t|r) and layout.(radial|angular)axis attributes
  • deprecated heatmapgl, pointcloud traces as well as all transform attributes
• Combined plotlywidget into jupyterlab-plotly and packaged them as a federated extension #3142 with massive thanks to @fcollonval for the contribution
• Plotly.js CDN url will now be versioned by default for HTML exports using include_plotlyjs='cdn' and for "connected" renderers. #2961 with thanks to @adehad for the contribution
• Dropped support for Python older than 3.6 #3160
• Recommending Kaleido by default over Orca #3094
• Replaced retrying dependency with tenacity #2911 with thanks to @jmsmdy for the contribution

Added

• New functions in plotly.colors: get_colorscale() and sample_colorscale() #3136 and #3186 with thanks to @CarlAndersson for the contributions
• Faster JSON encoding when orjson is present #2955

Fixed

• Pandas and Numpy datetime serialization fixes #3022
• Fixed selected points of histograms in FigureWidget #2771 with thanks to @meffmadd for the contribution

v5.0.0rc1

Find out more about the RC process on our Forum: https://community.plotly.com/t/plotly-py-5-0-is-coming-soon-try-the-release-candidate-today/53470

Updated

• Updated Plotly.js to version 2.0.0-rc.2. See the plotly.js 2.0.0 CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • new marker.pattern options for bar-like trace types
  • dropped support for IE9 and IE10
  • dropped support for long-deprecated graph_objects like area traces and scatter.(t|r) and layout.(radial|angular)axis attributes
  • deprecated heatmapgl, pointcloud traces as well as all transform attributes
• Combined plotlywidget into jupyterlab-plotly and packaged them as a federated extension #3142 with massive thanks to @fcollonval for the contribution
• Plotly.js CDN url will now be versioned by default for HTML exports using include_plotlyjs='cdn' and for "connected" renderers. #2961 with thanks to @adehad for the contribution
• Dropped support for Python older than 3.6 #3160
• Recommending Kaleido by default over Orca #3094
• Replaced retrying dependency with tenacity #2911 with thanks to @jmsmdy for the contribution

Added

• New functions in plotly.colors: get_colorscale() and sample_colorscale() #3136 and #3186 with thanks to @CarlAndersson for the contributions
• Faster JSON encoding when orjson is present #2955

Fixed

• Pandas and Numpy datetime serialization fixes #3022
• Fixed selected points of histograms in FigureWidget #2771 with thanks to @meffmadd for the contribution

v4.14.3

• px.timeline() now allows hover_data formatting of start and end times 3018
• Small change to packaging of plotlywidget extension for JupyterLab 3 3021

v4.14.2

Updated

• JupyterLab extensions now compatible with JupyterLab 3.x 3016
• Updated Plotly.js to version 1.58.4. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • fixes for rendering 3d plots on recent Safari versions
  • fixes to inside ticklabels
  • regression fixes

Fixed

• px.histogram() Y-axis labels now take into account histnorm and barnorm 2989
• px.histogram() marginal and facet_* now work correctly together 3014

v4.14.1

See the full announcement at https://community.plotly.com/t/announcing-plotly-py-4-14-faceted-and-animated-images-and-heatmaps-inside-tick-labels-better-axis-type-detection/48079

Updated

• Updated Plotly.js to version 1.58.2. See the plotly.js CHANGELOG for more information. These changes are reflected in the auto-generated plotly.graph_objects module. Notable changes include:
  • fixes for new ticklabelposition attribute
  • fixes for a regression related to treemaps in the previous version