v1.41.0

Added

• Enable selection by clicking on points via new layout attribute clickmode
  and flag 'select' [#2944]
• Add stacked area charts via new attributes stackgroup and stackgaps in
  scatter traces [#2960]
• Add barpolar traces - which replace and augment area traces [#2954]
• Add polar.hole to punch hole at the middle of polar subplot offsetting the
  start of the radial range [#2977, #2996]
• Add an 'inner' radial axis drag box on polar subplots [#2977]
• Add {responsive: true} plot config option [#2974]
• Emit plotly_webglcontextlost event on WebGL context lost [#2986]
• Support all numbered HTML entities (decimal and hex) in text elements [#2932]
• Add Welsh (cy) locale [#2945]

Changed

• Attribute meta information is now stripped be stripped out of bundles (made
  with bundlers that support browserify transforms) by default [#1584]
• Draw polar axis ticks above polar axis lines [#2977]
• Improve ordering of trace hover labels for matching positions [#2960]
• Speed polar subplot radial drag interactions [#2954]
• Improve pseudo-html conversion performance [#2932]
• Bump regl-splom requirement to ^1.0.4 [#2956]
• Bump glslify requirement to ^6.3.1 [#2990]
• Use gl-text instead of @etpinard/gl-text [#2956]

Fixed

• Fix scatter ordering in inner SVG <g> on some restyle calls [#2978]
• Fix cartesian axis autorange edge cases [#2960]
• Fix double-decoding of some HTML entities in text nodes [#2927]
• Fix scattergl line traces rendered after non-line traces [#2990]
• Fix legend positioning on graphs with very large margins [#2983]
• Fix rendering of ternary subplots fix with showticklabels: false [#2993]
• Fix show/hide updates of tick and tick labels on ternary subplots [#2993]
• Fix handling of multi-selections in ternary subplots [#2944]
• Fix sankey hover under hovermode: false [#2949]
• Fix sankey positioning for non-default domain.x values [#2984]
• Fix type: 'date' polar radial axes [#2954]
• Fix send-to-cloud modebar buttons on graphs with typed arrays [#2995]
• Fix handling of custom transforms that make their own data arrays in
  Plotly.react[#2973]
• Fix missing violin and colorbar attributes in gd._fullData [#2850]