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]