v1.14.2

Fixed

• Plotly.newPlot correctly clears all present WebGL contexts [#724]
• Bar traces with layout.bargap 0 and unset marker.line.width are functional
  again (bug introduced in 1.3.0) [#709]
• Stacked bar traces now correctly set the first bar position when leading gaps
  are present (bug introduced in 1.11.0) [#716]
• Bar traces with layout.barmode relative now correctly compute the bar sum of
  the first position when positive and negative values are present [#723]
• Event plotly_relayout is emitted upon pan / zoom on a mapbox subplot [#727]
• Lasso and select box drag modes now work with fixed ranged axes [#728]
• gl2d trace objects are purged when their parent scenes are destroyed [#724]

v1.14.1

Fixed

• Fix colorscale restyle calls on heatmap traces (bug introduced in 1.14.0)
  [#694]
• Hover after zoom / pan is now functional again in ternary plots (bug
  introduced in 1.14.0) [#688]
• Fix mapbox layer relayout starting from invisible layer [#693]
• Hover labels when hoveron: 'fills' are now constrained to the viewports
  [#688]
• Fix surface countours description [#696]
• Fix mapbox.layers.line description [#690]

v1.14.0

Added

• Attribute line.color in scatter3d traces now support color scales [#617]
• Annotations tail positions can now be set in data coordinates via the new
  axref and ayref attributes [#610]
• Attribute hoveron is added for scatter and scatterternary traces which
  adds the option to show hover labels about fill regions (instead of simply of
  about data points) [#673]
• Layout shapes can now be moved and resized (except for 'path' shapes) in
  editable contexts [#660]

Changed

• Numerous additions and changes where made to the mapbox layout layers
  attributes (introduced in 1.13.0). Namely, circle and symbol layer type
  where added. Note that some style attributes have been renamed to match the
  mapbox-gl API more closely. [#681]

Fixed

• Off-screen heatmap traces are properly deleted (bug introduced in 1.5.1)
  [#655]
• Hover labels for multi-heatmap subplot is functional again (bug introduced in
  1.4.0) [#655]
• Heatmap x/y brick generation is now functional for 0 and 1 item columns [#651]
• Multiple layout images can now shared the same image source [#672]
• Updating legend border and bgcolor attribute now works via Plotly.relayout
  [#652]
• Dragmode 'select' and 'lasso' no longer throw exception when selecting
  legendonly traces [#644]
• Ternary plots now respect the staticPlot config option [#645]
• Descriptions for axes nticks and contour traces ncountoursnow properly
  describe their behavior [#662]

v1.13.0

Added

• Beta version of the scattermapbox trace type - which allows users to create
  mapbox-gl maps using the plotly.js API. Note that scattermapbox is only
  available through custom bundling in this release [#626]
• Configurable log levels. All plotly.js logging is now turned off by default.
  Use Plotly.setPlotConfig({ logging: /* 1 or 2 */ }) to (1) display warnings
  only or (2) all logs [#590]
• Thorough mesh3d attribute descriptions [#593]

Changed

• Generalize hover picking routine (to make more easily re-usable for other plot
  types) [#575, #631]

Fixed

• Fix Plotly.toImage and Plotly.downloadImage bug specific to Chrome 51 on
  OSX [#604]
• Fix Plotly.downloadImage for svg types [#604]
• Fix scattergl opacity and connectgaps for 'lines' mode [#589]
• Make legend scroll bar keep its position after redraws [#584]
• Properly handle axis-reference shapes on overlaid axes [#612]
• Fix Plotly.relayout calls for layout.images in { astr: val } notation
  [#624]
• Bring back correct default value for lightposition in surface traces (bug
  introduced in 1.12.0) [#571]
• Fix typos in contours descriptions in contour traces [#583]
• Fix typos in axis.ticktext description [#607]
• Fix ambiguities in histogram nbin descriptions [#623]

v1.12.0

Added

• Light positions, face normal epsilon and vertex normal epsilon are now
  configurable in mesh3d traces [#556]
• Light position is now configurable in surface traces [#556]
• surface and mesh3d lighting attributes are now accompanied with
  comprehensive descriptions. [#556]

Changed

• Plot modules are now allowed to have their own toSVG method for
  subplot-specific to-svg logic [#554]

Fixed

• gl2d plots are now functional in core-js environments (e.g. in babel es6
  presets) [#569]
• gl2d replot calls from a blank plot are now functional [#570]
• SVG graph config argument scrollZoom is now again functional (bug introduced
  in v1.10.0) [#564]
• layout.separators is now honored in pie text labels [#547]
• Heatmap zsmooth value 'fast' is now functional for arbitrary layout widths
  [#548]
• Range sliders now respond to all axis range relayout calls [#568]

v1.11.0

Added

• Add top-level methods Plotly.toImage to convert a plotly graph to an image
  data URL (svg, png, jpg, and webp are supported) and Plotly.downloadImage to
  download a plotly graph as an image [#446]
• Add the ability to add arbitrary images loaded from a url to a plot's layout
  [#525]
• Add the option of making legend span horizontally [#535]
• Add connectgaps attribute to scattergl traces [#449]
• Add new 'relative' bar mode which stacks on top of one another with negative
  values below the axis, positive values above [#517]
• Add support for the 'winkel tripel' projection in geo subplots [#492]
• Event plotly_relayout is now emitted on gl2d subplot drag/pan/zoom
  interactions [#466]
• Add support for fill coloring in contourgl traces [#522, #543]

Changed

• Cartesian on-hover routine is now uses a 50ms interval between search calls
  instead of 100ms for smoother displaying hover labels [#514]
• [Internal change] fullLayout _has fields are replaced by a _has method
  which checks if a particular plot type is present on a graph [#491]

Fixed

• Bar widths of traces with null coordinates are now correctly computed [#542]
• Error bar spans on bar traces with null coordinates are now correctly computed
  [#542]
• All promises spawn in Plotly.plot are now guaranteed to be resolved before
  the final resolve [#521]
• Restyling scatterternary data attributes is now working [#540]
• Error bar of 0 length in log axes are not included in hover labels (instead of
  showing NaNs) [#533]

v1.10.2

Fixed

• Subplot and range slider clip paths are now functional in AngularJS (bug introduced in 1.10.0) [#509]
• relayout call involving axis categoryorder and categoryarray are now
  working [#510]
• Annotation drag interactions in editable: true mode are now functional (bug
  introduced in 1.10.0) [#505]
• Improved attribute description for shape xref and yref [#506]

v1.10.1

Fixed

• Resizing a graph (e.g. via Plotly.relayout or Plotly.Plots.resize)
  properly updates the plot area clip paths (bug introduced in 1.10.0) [#490]
• Plotly.Snapshot.toSVG is now functional again in IE11 and old version of
  Chrome and FF (bug introduced in 1.10.0) [#489]
• Hover labels of superimposed traces when 'hovermode' is set to 'closest' are
  properly displayed (bug introduced in 1.10.0) [#495]
• Surface contour highlights are toggleable [#459]
• Surface contour highlights style attributes are lower cased [#459]
• Zoom overlay are drawn over shapes [#448]
• Legend are draggable in editable: true contexts (bug introduced in 1.6.0)
  [#487]
• Legend scroll box are drawn outside the legend [#478]

v1.10.0

Added

• Beta version of two new 2D WebGL trace types: heatmapgl and contourgl
  [#427, #434]
• Two new scatter line fill modes: 'toself' and 'tonext' [#462]
• Fills for scatterternary traces are now supported [#462]
• Configurable axis category ordering with categoryorder and an optional
  categoryarray axis attributes [#419]
• Configurable shapes layer position with shape attribute layer [#439]
• Configurable range slider range (so that the initial xaxis range can differ
  from the range slider range) [#473]

Changed

• Nested SVG elements in SVG image exports are removed, making the to-image mode
  bar button work in RStudio and SVG export compatible with Adobe Illustrator
  [#415, #454, #442]
• Use country-regex npm package instead of hard-coded file of ISO-3 code to
  country regular expressions [#461]

Fixed

• Legend positioning does not break on negative x and y settings (bug
  introduced in 1.6.0) [#417]
• Shapes are properly deleted when clearing all of them at once (bug introduced
  in 1.9.0) [#465]
• Promise are return after first render in gl3d and gl2d plots [#421]
• Click and hover events are properly triggered when trace hoverinfo is set to
  'none' [#438]
• plotly_unhover events is now properly triggered on geo trace types [#429]
• plotly_relayout event is now properly triggered on gl3d set camera [#458]
• RGBA colors are now supported in scatter and bar custom color scales
  [#422]
• Range slider is now functional with x0/dx data [#441]
• Range slider is now compatible with mode bar axis range buttons and double
  click [#471]

v1.9.0

Added

• Ternary plots with support for scatter traces (trace type scatterternary) [#390]

Fixed

• Toggling the visibility of scatter3d traces with surfaceaxis now works [#405]
• scatter3d traces with surfaceaxis turned now feature real 3D opacity [#408]
• plotly_unhover is now properly triggered over pie traces [#407]
• Better grammar in scatter attribute descriptions [#406]