v1.29.0

Added

• Add touch interactions to cartesian, gl2d and ternary subplots including for
  select and lasso drag modes [#1804, #1890]
• Add support for contour line labels in contour and contourcarpet traces [#1815]
• Add support for select and lasso drag modes on scattermapbox traces [#1836]
• Add double click interactions to mapbox subplots [#1883]
• Add reset view and toggle hover mode bar buttons to mapbox subplots [#1883]
• Add support for array marker.opacity settings in scattermapbox traces [#1836]
• Add namelength layout and trace attribute to control the trace name's
  visible length in hover labels [#1822]
• Add cliponaxis attribute to scatter and scatterternary traces to allow
  markers and text nodes to be displayed above their subplot's axes [#1861]
• Add axis layer attribute with 'above traces' and 'below traces' values [#1871]
• Add granular editable configuration options [#1895]
• Expanded traces generated by transforms now have unique colors [#1830]

Fixed

• Fix axis line width, length, and positioning for coupled subplots [#1854]
• Fix alignment of cartesian tick labels [#1854]
• Fix rendering and updates of overlaying axis lines [#1855]
• Fix hover for 2D traces with custom colorbar tickvals [#1891]
• Fix hover and event data for heatmapgl and contourgl traces [#1884]
• Fix event data for pie and sankey traces [#1896]
• Fix drag mode 'pan'in IE and Edge [#1871]
• Fix bar, error bar and box point scaling on scroll zoom [#1897]
• Fix shading issue in surface trace in iOS [#1868]
• Fix lasso and select drag modes for scatterternary traces [#1831]
• Fix cases of intersecting contour lines on log axes [#1856]
• Safer construction of popup click handler [#1888]
• Fix animation of annotations, shapes and images [#1315]
• Fix histogram bin computation when more than 5000 bins are needed [#1887]
• Fix tick label rendering when more than 1000 labels are present [#1898]
• Fix handling of empty transforms item [#1829]