v1.27.0

Added

• Sankey diagram with new trace type sankey [#1591, #1664]
• Add hoverlabel trace and layout attributes to customize hover label colors
  and fonts [#1582]
• Add marker.gradient attributes for scatter, scattergeo, scatterternary
  and scattercarpet traces [#1620]
• Add sort transform [#1609]
• Add preservegaps filter transform attribute [#1589]
• Add != (not equal) filter transform operation [#1589]
• Add labelfont, tickfont and rangefont attributes for parcoords traces
  [#1624]
• Pass DOM mouse event on plotly_clickannotations events [#1652]

Changed

• Performance optimization for range sliders and Drawing cache [#1585]

Fixed

• Fix scattergl marker symbol positioning (bug introduced in 1.25.0) [#1633]
• Fix gl2d zoom where two clicks would trigger a zoom box (bug introduced 1.26.0) [#1632]
• Fix legend double click handler for carpet traces [#1636]
• Fix restyle for scattercarpet for style attributes with array support [#1641]
• Fix restyle for array layout components when more than 10 items are present
  [#1639]
• Fix select-box and lasso selections so that they don't include bad-data items
  [#1656]
• Fix restyle for contour zmin and zmax [#1653]
• Fix scatter text node transitions [#1616, #1626]

v1.26.1

Fixed

• Fix pie fill opacity [#1615]
• Fix contour.value declaration for contourcarpet trce [#1612]

v1.26.0

Added

• Carpets plots with new trace types: carpet, scattercarpet and
  contourcarpet [#1595, #1596]
• Axis constraints with new cartesian and gl2d axis attributes scaleanchor and
  scaleratio [#1522]
• Annotations width, height, valign and xshift and yshift attributes
  [#1551, #1590]
• Hover text over annotations with hovertext and hoverlabel attributes
  [#1573, #1590]
• Add hovertext attribute to trace types that can show text values on graph
  to allow setting hover text independently [#1523]
• Add spikes interactions functionality to cartesian subplots [#1461]
• Pass mouse DOM mouse event during plotly_click, plotly_hover and
  plotly_unhover [#1505]
• Add visible attribute to cartesian and gl3d axes to easily make them
  disappear [#1595, #1599]
• Make deleteFrames(gd) delete all frames [#1531]

Changed

• Lock down gl-plot3d and matrix-camera-controller dependencies to include
  latest memory management improvements [#1570]
• Performance improvements for category axes [#1544]
• Skip overhead for showLink config option is false [#1557]
• Optimize scatter trace sorting on updates [#1555]
• Lock down gl-scatter2d-sdf dependency to 1.3.4 while waiting for bug fix
  there [#1572]

Fixed

• Fix bar sizes of traces with (x,y) NaN items [#1519]
• Fix handling of NaN items in array-ok attributes for scattergeo and
  scattermapbox traces [#1538, #1564]
• Fix hover label position for bar traces with set width [#1527]
• Fix restyle for attribute containers [#1536]
• Fix restyle exception for scattergl traces with no y data [#1567]
• Fix animation of text nodes that contain <br>s [#1602]
• Fix toImage for mapbox subplots when access token is set in the config
  options [#1598]
• Emit plotly_hover on pie traces when hoverinfo: 'none' [#1505]
• Pass trace info during plotly_click on pie traces [#1505]
• Pass through the wheel event if the scrollbar is at the very top or bottom
  [#1588]

v1.25.2

Fixed

• rm const token from dist bundles that depend on big-rat,
  see rat-nest/big-rat#4 for more details.

v1.25.1

Fixed

• Fix restyle for scattergl traces with array marker.size (bug introduced
  in 1.25.0) [#1521]
• Fix relayout for histogram2dcontour traces [#1520]
• Do not unnecessary mutate parcoords full trace objects when computing
  line color and colorscale [#1509, #1508]
• Do not unnecessary coerce trace opacity in parcoords traces [#1506]

v1.25.0

Added

• Double click handler on legend items to isolate 1 traces / group on graph
  [#1432]

Changed

• Use signed distance fields (SDF) method to render heterogeneous scattergl
  traces improving performance [#1398]
• Improve first-render performance in scattergl traces by only creating
  visible objects [#1444]
• Use color-rgba instead of tinycolor2 to convert plotly color definitions to
  WebGL buffers improving performance for gl3d and gl2d traces [#1443]
• Bump uglify-js minifier to version 2.8.12 [#1450]

Fixed

• Fix 3D trace ordering on visibility toggle [#1466]
• Fix gl2d trace ordering on visibility toggle [#1444]
• Fix autorange routine for bar traces [#1475]
• Fix shapes and images referencing a missing subplot [#1481]
• Ensure array attributes can be restyled in all situations [#1488]
• Fix XYZ-column-to-2D-z convert routine for columns containing nulls [#1491]
• Fix range slider display when anchored to log axes [#1472]
• Make sure all trace types can be deleted from range sliders [#1472]
• Let the parcoords object tree be garbage collected on restyle [#1479]
• Bring back support for histogram colorscales (bug introduced in 1.21.3)
  [#1500]
• Support all axis types for clicktoshow annotations [#1497]
• Fix 3D margin relayout calls (bug introduced in 1.24.1) [#1494]
• Fix relayout when trying to update empty axis containers (bug introduced in
  1.24.0) [#1494]

v1.24.2

Fixed

• Fix removal of last annotation or shape [#1451]
• Fix shape and image clip path removal [#1453]
• Fix overdrawing of data-referenced images [#1453]
• Make handling of layer: 'below' shape more robust [#1453]
• Allow multiple parcoords dimensions with the same label [#1457]

v1.24.1

Fixed

• Ensure calling restyle or relayout in a plotly_unhover handler does not
  result in an infinite loop (bug introduced in 1.24.0) [#1448]
• Ensure autorange routine is bypassed when axis range is set (bug introduced in
  1.24.0) [#1425]
• Fix annotations dragging in editable mode (bug introduced in 1.22.0) [#1441]
• Show correct curve number in gl2d hover data [#1427]
• Clear parcoords canvas specially if no panel exist [#1440]
• Fix parcoords to render last block increment [#1447]
• Axis keys in hover data are no longer plagued by circular references [#1431]

v1.24.0

Added

• Add parcoords trace type (parallel coordinate plots) [#1256]
• Add support for multiple range sliders [#1355]
• Add 'aitoff' and 'sinusoidal' geo projection types [#1422]
• Implement scene.dragmode: false to disable drag interaction on 3D subplots
  [#1377]
• Add showAxisDragHandles and showAxisRangeEntryBoxes configuration options
  [#1389]
• Add customdata attribute to scatter traces to add custom data to scatter SVG
  nodes [#1379]

Changed

• Consistent handling of array containers during relayout [#1403]
• Improve hover for choropleth traces [#1401]
• Make range slider handles and mask crispier [#1409]
• Bump country-regex dependency to 1.1.0 [#1392]

Fixed

• Fix 3D on iOS devices [#1411]
• Fix surface trace opacity scaling [#1415]
• Fix hover data in animations [#1274]
• Fix annotations edit when dragging from one axis to another [#1403]
• Fix 3D hover labels for date axes [#1414]
• Deleting cartesian subplots now clear their corresponding axis titles [#1393]
• Fix hover for xyz column heatmap trace 'text' [#1417]
• Fix scattermapbox lines with trailing gaps [#1421]
• Make restyle, relayout and update not mutate input update objects [#1376]
• Fix race condition in gl2d toImage [#1388]
• Fix handling of Virgin Islands country name [#1392]
• Fix Plotly.validate for colorscale attributes [#1420]

v1.23.2

Changed

• Bower installs now fetch un-minified dist/plotly.js bundle [#1373]
• Add package to packagist repository [#1375]