v.1.8.1

• ENHANCEMENT: Added resources (files, js, and css) support to chart export.

v.1.8.0

• BUGFIX: Fixed over-eager trimming of None data values when serializing .to_json() for
  export via the Export Server. Closes #168.
• BUGFIX: Fixed DumbbellSeries.data incorrect type (reverted from CartesianData to
  RangeData-descended). Closes #176.
• BUGFIX: Fixed coercion of datetime.date type values to milliseconds when serializaing .to_json()
  for export via the Export Server.
• ENHANCEMENT: Added for_export as a special parameter to the .to_json() serialization method
  to maintain past behavior while simultaneously fixing serialization bugs related to export via the Node
  Export Server. Extended .trim_dict() and .trim_iterable() internal methods with for_export
  support for the same purpose.

v.1.7.6

• BUGFIX: Enabled support for the 'image/svg+xml' export type when using the Node Export Server.
  Now supplying a type of 'svg' will coerce (under the hood) to 'image/svg+xml' which supports
  more extensive rendering options.

v.1.7.5

• BUGFIX: Fixed encoding issue when handling certain exported SVGs from the Node Export Server.

v.1.7.4

• BUGFIX: Fixed incorrect .to_json() serialization of null values inside of an iterable.

v.1.7.3

• BUGFIX: Fixed handling of boolean values in GenericTypeOptions.animation property.
• BUGFIX: Fixed incorrect serialization of format strings that begin with { and end with }.
  In particular, now added an "escape hatch" if the {...} string is prefixed with $ to ensure
  proper serialization.
• BUGFIX: Adjusted export support for Highcharts Node Export Server v.3.1.1.

v.1.7.2

• BUGFIX: Fixed incorrect handling of empty string in YAxis.title.text (#171).
• ENHANCEMENT: Bumped dependency on requests to v.2.32.

v.1.7.1

• BUGFIX: Fixed data collection roundtrip via .to_json() / .from_json() (#169).

v.1.7.0

• ENHANCEMENT: Align the API to Highcharts (JS) v.11.4 (#163). In particular, this includes:

  • Added Accessibility.high_contrast_mode support.
  • Added OrganizationOptions.hanging_side support.
  • Added SankeyOptions.node_distance support.
  • Added TreegraphOptions.node_distance support.
  • Adjusted diagram (ArcDiagramOptions, TreegraphOptions, DependencyWheelOptions, and
    SankeyOptions) .node_width support and documentation.
  • Added NodeOptions.height support.

• ENHANCEMENT: Added utility_functions.datetime64_to_datetime() function to convert
  numpy.datetime64 to datetime.datetime (#162).

v.1.6.0

• ENHANCEMENT: Align the API to Highcharts (JS) v.11.3 (#146). In particular, this includes:

  • Added ChartOptions.axis_layout_runs property.
  • Added ColorAxis.height property.
  • Added ColorAxis.width property.
  • Added Data.column_types property.
  • Added Exporting.fetch_options property.
  • Implemented support for verbose axis date-time unit labelling configuration (see: DateTimeLabelFormats).

• BUGFIX: Added support for nodeFormat and nodeFormatter to tooltip properties for
  diagram series (Organization, Dependency Wheel, and Sankey). (#148)

• ENHANCEMENT: Added ability to remove or override the JavaScript event listener when
  serializing a chart to a JavaScript literal (#131 - courtesy of
  @ByronCook ).

• ENHANCEMENT: Added support for the HCP_ALLOW_SPECIAL_IPS environment variable
  which allows localhost (or other special URLs) to pass URL validation. (#147)

• DOCUMENTATION: Fixed typos in Getting Started tutorial. (#149)

• DOCUMENTATION: Fixed typos in documentation (courtesy of @karlacio
  and @maxduganknight ).