v1.43.0

Added

• Add hovertemplate attribute to scatter, scattergl, bar, histogram,
  pie and sankey traces [#3126, #3265, #3284]
• Add layout.title placement attributes x, y, xref, yref,
  xanchor, yanchor and pad [#3276]
• Add support for <br>, <sup>, and <sub> pseudo-html in scatter3d and gl3d
  scene text [#3207]
• Add multicategory axis type, allowing for "multi-level" categorical axis labels
  and category dividers with axis attributes: showdividers,
  dividercolor and diverwidth [#3254, #3300, #3326]
• Add cartesian axis attribute tickson with value 'boundaries' to
  place categorical ticks on the category boundaries [#3254, #3275]
• Add uirevision attributes to control the persistence of user-driven changes
  on the graph [#3236]
• Add legend.valign to set the vertical alignment of the legend symbols
  with respect to their associated text labels [#3263]
• Implement arrayOk textposition for scatter3d traces [#3200]
• Add layout attributes colorscale.sequential, colorscale.sequentialminus and
  colorscale.diverging to set graph-wide colorscale defaults [#3274]
• Add dragmode: false to disable all drag interactions on cartesian subplots [#3170]
• Add plotly.js-locales npm packages that includes all official locales modules [#3223]
• Add watermark config option to permanently show Plotly's logo
  in the mode bar (set to false by default) [#3280]
• Add Finnish locale (fi) [#3325]

Changed

• Remove "Edit in Chart Studio" button by default [#3307]
• title attributes linked to strings are now deprecated. Please use
  title.text instead to fill in your title text [#3276]
• title* attributes are new deprecated. They moved to title.*. For
  example, colorbar.titleside is now colorbar.title.side [#3276]
• No longer mutate colorscale values into user data [#3341]
• No longer mutate zmin/zmax, cmin/cmax values into user data [#3341]

Fixed

• Fix react when updates trigger a new set of auto-margins [#3323]
• Fix scattergl coloring when more than 255 marker colors are present [#3328, #3334]
• More scattergl IE11 fixes [#3333, #3335]
• Multiple surface rendering fixes [#3281]
• Correctly default scene.dragmode to 'orbit' when camera up vector is
  tilted [#3256]
• Fix hover on scatter3d traces with opacity: 1 on Ubuntu [#3301]
• Fix console error Uncaught ax.dtick error: NaN in gl3d subplots [#3233]
• Fix histogram hover event triggers when hovering from bar to bar [#3345]
• Fix graphs with empty and non-empty histogram traces [#3343]
• Fix contour labels on reversed axes [#3279]
• Fix autocolorscale toggling [#3341]
• Fix template support for marker.colorscale [#3341]
• Fix scatter3D trace with mode: 'lines+markers' with line color array error [#3341]
• Do not add <base> href to SVG clip paths during toImage [#3272]
• Fix table scrolling that leaked into window scope [#3327]
• Fix fills on segment-less marker-less traces [#3282]
• Fix rangesliders on reversed-range axes [#3304]
• Fix rangesliders on side: 'top'x-axes [#3329]
• Fix typed array support for ohlc and candlestick traces [#3342]
• Fix restyle with impliedEdits on trace with groupby transforms [#3236]
• Fix editable: true drag on marker colorbars [#3236]