plotly/plotly.js v1.41.0 on GitHub

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]

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]

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]