v2.3.1

Fixed

• Fix period positioned hover to work in different time zones as well as on grouped bars [#5864]
• Use ids from axes when making hover data keys [#5852]
• Do not include regl based traces parcoords, splom, scattergl and scatterpolargl in the "strict" bundle so that it could be used with CSP without WebGL warning [#5865]

v2.3.0

Added

• Add new number formatting and text alignment options by upgrading d3.format method from d3@v3 to version 1.4.5 of d3-format module [#5125, #5842]
• Add "satellite" and several other projection types to geo subplots [#5801]
• Improve rendering of scattergl, splom and parcoords by implementing plotGlPixelRatio for those traces [#5500]

Changed

• Upgrade d3.geo method from d3@v3 to version 1.12.1 of d3-geo module and version 2.9.0 of d3-geo-projection module [#5112]
• Upgrade d3.interpolate method from d3@v3 to version 1.4.0 of d3-interpolate module in icicle, indicator, parcats, sunburst and treemap [#5826]
• Upgrade regl-scatter2d, regl-line2d and regl-error2d modules to use version 1.1.0 of to-float32 module to improve the performance [#5786], with thanks to @Seranicio for the contribution!
• Edit the type of constraintrange in parcoords trace to pass validation [#5673]
• Sort object key values in schema [#5813]
• Sort plot-schema and add test to track plot-schema changes [#5776]
• Preview CHANGELOG when building dist on master [#5780, #5808]
• Preview plot-schema changes between releases when building dist on master [#5814]
• Display changes made to package.json between versions and add identical tags to draft bundles created by publish-dist job on CircleCI [#5815]
• Simplify devtool by relying on XMLHttpRequest instead of d3.json [#5832]
• Update CONTRIBUTING guidelines on how to submit pull requests and generate new baseline [#5791, [#5792]]

Fixed

• Fix unknown filename when exporting charts using new versions of Safari [#5609, 5838], with thanks to @rlreamy for the contribution!
• Improve README for ES6 module import [#5779], with thanks to @AndreAfonso for the contribution!
• Position hover in respect to the average of values in (x|y) unified modes (regression introduced in 2.0.0) [#5845]
• Fix hover with period alignment points and improve positioning of spikes and unified hover label
  in order not to obscure referring data points and fit inside plotting area [#5846]
• Allow clickable legend group titles when group has no pie-like traces [#5771]
• Fix mapbox line text example [#5804]
• Fix links to time format options so that they point to the d3-time-format v2.2.3 applied not the latest [#5818]

v2.2.1

Fixed

• Fix to improve sanitizing href inputs for SVG and HTML text elements [#5803]

v1.58.5

Fixed

• Fix to improve sanitizing href inputs for SVG and HTML text elements [#5803]

v2.2.0

Added

• Legend group titles [#5752],
  this feature was anonymously sponsored: thank you to our sponsor!
• Add half-year directive (%h) for formatting dates and improve descriptions to include extra date formatting options [#5762],
  this feature was anonymously sponsored: thank you to our sponsor!

Changed

• Modernize the process of creating baselines using Kaleido and improve image & other export test systems [#5724]
• Centralize jsdom utility to return Plotly object in node.js test scripts and use it in generating plot-schema [#5755]
• Bump turf bbox dependency to v6.4.0 [#5747]
• Bump turf area dependency to v6.4.0 [#5748]
• More maintenance work listed under the v2.2.0 milestone

Fixed

• Cache values and patterns in set_convert for axes with rangebreaks to improve performance [#5659],
  with thanks to @spasovski for the contribution!
• Fix fetching geojson when ES6 import is used to load the library [#5763]
• Correct readme links [#5746]

v2.1.0

Added

• Add icicle trace type [#5546]
  with thanks to @Kully and @mtwichan of Zyphr for their contribution!
• Implement legendrank attribute in traces [#5591]
• Implement fgopacity, fgcolor & "overlay" fillmode for bars and
  handle bar pattern and legend when marker.colorscale is present [#5733]

Changed

• Replace deprecated node-sass modules with Sass and update plot CSS [#5729]
• Bump probe-image-size to v7.2.1 [#5739]
• More maintenance work listed under the v2.1.0 milestone

Fixed

• Fix setting the width of categorical bars & boxes to unit [#5732]

v2.0.0

Please see our full release announcement on the Plotly Community Forum: https://community.plotly.com/t/announcing-plotly-js-2-0/53675

Our commitment to semantic versioning requires us to make this next release a major version bump because we are making some backwards-incompatible changes to older and deprecated features (see below), but we see this as a low-risk maintenance release and we expect that the vast majority of users should plan to upgrade without fearing significant issues, including Javascript developers who embed Plotly.js directly in their apps or websites, as well as data scientists using Plotly.js via Plotly.py in a notebook environment, and of course Dash app developers!

Added

• CSP safety: refactored to avoid usage of function constructors from basic, cartesian, finance, geo, and mapbox
  partial bundles and added tests to ensure that they will not again do so in the future [#5359, #5383, #5387],
  with thanks to Equinor for sponsoring the related development!
• Add strict partial bundle [#5413, #5444], which includes
  the maximal subset of the library which does not rely on function constructors
• Add custom-bundle script to facilitate generation of custom bundles [#5527, #5508, #5605, #5712]
• Add mock validation utility [#5653]
• Implement "fast" zsmooth option for image trace [#5354, #5386],
  with thanks to @almarklein for the contribution!
• Implement various marker.pattern options in histogram, bar and barpolar traces [#5520, #5537]
  with thanks to @s417-lama for the contribution!
• Implement ticklabeloverflow options on cartesian axes and colorbars to drop tick labels going outside div or domain [#5584]
• Implement (x|y|z)hoverformat, (u|v|w)hoverformat and valueformat to cartesian and gl3d traces [#5563]
• Implement "(x|y)other" hovertemplate options to format differing positions in compare and unified modes [#5690]
• Add layout and template attributes to facilitate enabling and disabling predefined modebar buttons e.g. shape drawing and "v1hovermode" via modebar.add and modebar.remove [#5660]

Removed

• Drop support for old browsers IE9 and IE10 [#5376, #5380, #5460, #5491]
• Stop exporting v3 of d3 under Plotly.d3 [#5400, #5406]
• Stop attaching _has* plot types to fullLayout [#5409]
• Stop injecting MathJax config by default [#5514]
• Remove sane-topojson and MathJax v2.3 files from dist folder and change supported MathJax version to v2.7.5 [#5487, #5492, #5494]
• Reduce the number of exported methods from Plotly.Fx and Plotly.Plots in the API [#5420]
• Drop Plotly.plot from the API [#5412, #5370, #5393]
• Drop Plotly.Queue from the API [#5423]
• Drop non-object role keys from attribute definition [#5425, #5432]
• Drop deprecated contourgl and area traces as well as deprecated legacy
  pre-scatterpolar polar-related attributes bar.t, bar.r,
  scatter.t, scatter.r, layout.radialaxis, layout.angularaxis and
  gd.framework [#5399, #5408, #5409, #5398, #5438]
• Stop overwriting the "latest" bundles on CDN, please specify the version [#5462, #5697]

Deprecated

• Deprecate heatmapgl and pointcloud trace types for later removal [#5447]
• Deprecate transform attributes [#5657]

Changed

• No longer show "Aa" text in legends unless there is only text in the legend item [#5682]
• New defaults for legend.title.font and colorbar.title.font to depend on legend.font and colorbar.tickfont and increase their sizes [#5611]
• New defaults for spikes by setting spikedistance to "-1" and axis.spikesnap to "hovered data" [#5648]
• Default hovermode to "closest" [#5647]
• Default textposition to "auto" in bar, histogram and waterfall traces [#5638]
• Hide hover and spike modebar buttons by default while layout.modebar.add or config.modeBarButtonsToAdd could be used to bring them back in [#5654, #5658]
• Switch to native-promise-only module to handle es6 promises [#5358]
• Switch to probe-image-size module to get width and height of images [#5388, #5635]
• Relax test for plain objects to enable validation in node.js and multiple window contexts [#5411, #5498]
• Display latitudes before longitudes in mapbox and geo hoverlabels to comply with ISO 6709 (Standard representation of geographic point location by coordinates) [#5485, #5676]
• Adjust text shadow color in respect to paper_bgcolor for better dark mode display of
  sankey, parcoords and parcats traces [#5506]
• Improve sankey text namely support pseudo-html, fix textfont.color and avoid clipping [#5531]
• Make selection event data of scattergl on par with scatter traces [#5534]
• Fire plotly_unhover event when dragging [#5407],
  with thanks to @rreusser for the contribution!
• Include transforms and calendars in partial bundles [#5379, #5422]
• Require unminified mapbox-gl dependency for unminified bundles and
  revisit compression options for minified bundles [#5449]
• Remove header comments from the source files and only add headers to the top of
  dist files at build time [#5436, #5446]
• Guard against unexpected characters at build time [#5424]
• Minimize indentation in plot-schema [#5663]
• More maintenance work listed under the the 60th milestone!

Fixed

• Fix "toself" fill for scattergl traces to handle multiple polygons [#5355],
  with thanks to @ruijin for the contribution!
• Fix element targeting on hover in shadow DOM [#5256],
  with thanks to @dbluhm for the contribution!
• Fix hover interaction on geo subplots in Firefox [#5607],
  with thanks to @LucaVazz for the contribution!
• Improve scattergl performance when using typed arrays [#5632],
  with thanks to @Seranicio for the contribution!
• Fix native ES6 import [#5708],
  with thanks to @oldrich-svec suggestion!
• Hide gridlines and ticks overlapping "inside" ticklabels [#5550, #5586, #5589, [#5610](https://github.com/plotly/plotly.js/pu...

v2.0.0-rc.3

Our commitment to semantic versioning requires us to make this next release a major version bump because we are making some backwards-incompatible changes to older and deprecated features (see below), but we see this as a low-risk maintenance release and we expect that the vast majority of users should plan to upgrade without fearing significant issues, including Javascript developers who embed Plotly.js directly in their apps or websites, as well as data scientists using Plotly.js via Plotly.py in a notebook environment, and of course Dash app developers!

Added

• CSP safety: refactored to avoid usage of function constructors from basic, cartesian, finance, geo, and mapbox
  partial bundles and added tests to ensure that they will not again do so in the future [#5359, #5383, #5387],
  with thanks to Equinor for sponsoring the related development!
• Add strict partial bundle [#5413, #5444], which includes
  the maximal subset of the library which does not rely on function constructors
• Add partial-bundle script to facilitate generation of custom bundles [#5527, #5508, #5605]
• Add mock validation utility [#5653]
• Implement "fast" zsmooth option for image trace [#5354, #5386],
  with thanks to @almarklein for the contribution!
• Implement various marker.pattern options in histogram, bar and barpolar traces [#5520, #5537]
  with thanks to @s417-lama for the contribution!
• Implement ticklabeloverflow options on cartesian axes and colorbars to drop tick labels going outside div or domain [#5584]
• Implement (x|y|z)hoverformat, (u|v|w)hoverformat and valueformat to cartesian and gl3d traces [#5563]
• Implement "(x|y)other" hovertemplate options to format differing positions in compare and unified modes [#5690]
• Add layout and template attributes to facilitate enabling and disabling predefined modebar buttons e.g. shape drawing and "v1hovermode" via modebar.add and modebar.remove [#5660]

Removed

• Drop support for old browsers IE9 and IE10 [#5376, #5380, #5460, #5491]
• Stop exporting v3 of d3 under Plotly.d3 [#5400, #5406]
• Stop attaching _has* plot types to fullLayout [#5409]
• Stop injecting MathJax config by default [#5514]
• Remove sane-topojson and MathJax v2.3 files from dist folder and change supported MathJax version to v2.7.5 [#5487, #5492, #5494]
• Reduce the number of exported methods from Plotly.Fx and Plotly.Plots in the API [#5420]
• Drop Plotly.plot from the API [#5412, #5370, #5393]
• Drop Plotly.Queue from the API [#5423]
• Drop non-object role keys from attribute definition [#5425, #5432]
• Drop deprecated contourgl and area traces as well as deprecated legacy
  pre-scatterpolar polar-related attributes bar.t, bar.r,
  scatter.t, scatter.r, layout.radialaxis, layout.angularaxis and
  gd.framework [#5399, #5408, #5409, #5398, #5438]
• Stop overwriting the "latest" bundles on CDN, please specify the version [#5462, #5697]

Deprecated

• Deprecate heatmapgl and pointcloud trace types for later removal [#5447]
• Deprecate transform attributes [#5657]

Changed

• No longer show "Aa" text in legends unless there is only text in the legend item [#5682]
• New defaults for legend.title.font and colorbar.title.font to depend on legend.font and colorbar.tickfont and increase their sizes [#5611]
• New defaults for spikes by setting spikedistance to "-1" and axis.spikesnap to "hovered data" [#5648]
• Default hovermode to "closest" [#5647]
• Default textposition to "auto" in bar, histogram and waterfall traces [#5638]
• Hide hover and spike modebar buttons by default while layout.modebar.add or config.modeBarButtonsToAdd could be used to bring them back in [#5654, #5658]
• Switch to native-promise-only module to handle es6 promises [#5358]
• Switch to probe-image-size module to get width and height of images [#5388, #5635]
• Relax test for plain objects to enable validation in node.js and multiple window contexts [#5411, #5498]
• Display latitudes before longitudes in mapbox and geo hoverlabels to comply with ISO 6709 (Standard representation of geographic point location by coordinates) [#5485, #5676]
• Adjust text shadow color in respect to paper_bgcolor for better dark mode display of
  sankey, parcoords and parcats traces [#5506]
• Improve sankey text namely support pseudo-html, fix textfont.color and avoid clipping [#5531]
• Make selection event data of scattergl on par with scatter traces [#5534]
• Fire plotly_unhover event when dragging [#5407],
  with thanks to @rreusser for the contribution!
• Include transforms and calendars in partial bundles [#5379, #5422]
• Require unminified mapbox-gl dependency for unminified bundles and
  revisit compression options for minified bundles [#5449]
• Remove header comments from the source files and only add headers to the top of
  dist files at build time [#5436, #5446]
• Guard against unexpected characters at build time [#5424]
• Minimize indentation in plot-schema [#5663]
• More maintenance work listed under the the 60th milestone!

Fixed

• Fix "toself" fill for scattergl traces to handle multiple polygons [#5355],
  with thanks to @ruijin for the contribution!
• Fix element targeting on hover in shadow DOM [#5256],
  with thanks to @dbluhm for the contribution!
• Fix hover interaction on geo subplots in Firefox [#5607],
  with thanks to @LucaVazz for the contribution!
• Improve scattergl performance when using typed arrays [#5632],
  with thanks to @Seranicio for the contribution!
• Fix native ES6 import [#5708],
  with thanks to @oldrich-svec suggestion!
• Hide gridlines and ticks overlapping "inside" ticklabels [#5550, #5586, #5589, #5610, #5684]
• Improve hover in compare and unified modes [#5543, [#5618](https://github.com/plotly/...

v2.0.0-rc.2

Our commitment to semantic versioning requires us to make this next release a major version bump because we are making some backwards-incompatible changes to older and deprecated features (see below), but we see this as a low-risk maintenance release and we expect that the vast majority of users should plan to upgrade without fearing significant issues, including Javascript developers who embed Plotly.js directly in their apps or websites, as well as data scientists using Plotly.js via Plotly.py in a notebook environment, and of course Dash app developers!

Added

• CSP safety: refactored to avoid usage of function constructors from basic, cartesian, finance, geo, and mapbox
  partial bundles and added tests to ensure that they will not again do so in the future [#5359, #5383, #5387],
  with thanks to Equinor for sponsoring the related development!
• Add strict partial bundle [#5413, #5444], which includes
  the maximal subset of the library which does not rely on function constructors
• Add partial-bundle script to facilitate generation of custom bundles [#5527, #5508, #5605]
• Add mock validation utility [#5653]
• Implement "fast" zsmooth option for image trace [#5354, #5386],
  with thanks to @almarklein for the contribution!
• Implement various marker.pattern options in histogram, bar and barpolar traces [#5520, #5537]
  with thanks to @s417-lama for the contribution!
• Implement ticklabeloverflow options on cartesian axes and colorbars to drop tick labels going outside div or domain [#5584]
• Implement (x|y|z)hoverformat, (u|v|w)hoverformat and valueformat to cartesian and gl3d traces [#5563]
• Add layout and template attributes to facilitate enabling and disabling predefined modebar buttons e.g. shape drawing and "v1hovermode" via modebar.add and modebar.remove [#5660]

Removed

• Drop support for old browsers IE9 and IE10 [#5376, #5380, #5460, #5491]
• Stop exporting v3 of d3 under Plotly.d3 [#5400, #5406]
• Stop attaching _has* plot types to fullLayout [#5409]
• Stop injecting MathJax config by default [#5514]
• Remove sane-topojson and MathJax v2.3 files from dist folder and change supported MathJax version to v2.7.5 [#5487, #5492, #5494]
• Reduce the number of exported methods from Plotly.Fx and Plotly.Plots in the API [#5420]
• Drop Plotly.plot from the API [#5412, #5370, #5393]
• Drop Plotly.Queue from the API [#5423]
• Drop non-object role keys from attribute definition [#5425, #5432]
• Drop deprecated contourgl and area traces as well as deprecated legacy
  pre-scatterpolar polar-related attributes bar.t, bar.r,
  scatter.t, scatter.r, layout.radialaxis, layout.angularaxis and
  gd.framework [#5399, #5408, #5409, #5398, #5438]

Deprecated

• Deprecate heatmapgl and pointcloud trace types for later removal [#5447]
• Deprecate transform attributes [#5657]

Changed

• No longer show "Aa" text in legends unless there is only text in the legend item [#5682]
• New defaults for legend.title.font and colorbar.title.font to depend on legend.font and colorbar.tickfont and increase their sizes [#5611]
• New defaults for spikes by setting spikedistance to "-1" and axis.spikesnap to "hovered data" [#5648]
• Default hovermode to "closest" [#5647]
• Default textposition to "auto" in bar, histogram and waterfall traces [#5638]
• Hide hover and spike modebar buttons by default while layout.modebar.add or config.modeBarButtonsToAdd could be used to bring them back in [#5654, #5658]
• Add major versions e.g. "latest-v2" when publishing latest to CDN and keep "latest" for v1 [#5462]
• Switch to native-promise-only module to handle es6 promises [#5358]
• Switch to probe-image-size module to get width and height of images [#5388, #5635]
• Relax test for plain objects to enable validation in node.js and multiple window contexts [#5411, #5498]
• Display latitudes before longitudes in mapbox and geo hoverlabels to comply with ISO 6709 (Standard representation of geographic point location by coordinates) [#5485, #5676]
• Adjust text shadow color in respect to paper_bgcolor for better dark mode display of
  sankey, parcoords and parcats traces [#5506]
• Improve sankey text namely support pseudo-html, fix textfont.color and avoid clipping [#5531]
• Make selection event data of scattergl on par with scatter traces [#5534]
• Fire plotly_unhover event when dragging [#5407],
  with thanks to @rreusser for the contribution!
• Include transforms and calendars in partial bundles [#5379, #5422]
• Require unminified mapbox-gl dependency for unminified bundles and
  revisit compression options for minified bundles [#5449]
• Remove header comments from the source files and only add headers to the top of
  dist files at build time [#5436, #5446]
• Guard against unexpected characters at build time [#5424]
• Minimize indentation in plot-schema [#5663]
• More maintenance work listed under the the 60th milestone!

Fixed

• Fix "toself" fill for scattergl traces to handle multiple polygons [#5355],
  with thanks to @ruijin for the contribution!
• Fix element targeting on hover in shadow DOM [#5256],
  with thanks to @dbluhm for the contribution!
• Improve scattergl performance when using typed arrays [#5632],
  with thanks to @Seranicio for the contribution!
• Hide gridlines and ticks overlapping "inside" ticklabels [#5550, #5586, #5589, #5610, #5684]
• Improve hover in compare and unified modes [#5543, #5618, #5662, #5664, #5668, #5683]
• Fix spike on bar-like traces [#5542]
• Fix bar inside text font color default when using colorscale [#5666]
• Fix texttemplate on log axes ...

v2.0.0-rc.1

Check out the Pre-Release Announcement on our community forum for details about v2 Release Candidates

Our commitment to semantic versioning requires us to make this next release a major version bump because we are making some backwards-incompatible changes to older and deprecated features (see below), but we see this as a low-risk maintenance release and we expect that the vast majority of users should plan to upgrade without fearing significant issues, including Javascript developers who embed Plotly.js directly in their apps or websites, as well as data scientists using Plotly.js via Plotly.py in a notebook environment, and of course Dash app developers!

Added

• CSP safety: refactored to avoid usage of function constructors from basic, cartesian, finance, geo, and mapbox
  partial bundles and added tests to ensure that they will not again do so in the future [#5359, #5383, #5387],
  with thanks to Equinor for sponsoring the related development!
• Add strict partial bundle [#5413, #5444], which includes
  the maximal subset of the library which does not rely on function constructors
• Add partial-bundle script to facilitate generation of custom bundles [#5527, #5508]
• Implement "fast" zsmooth option for image trace [#5354, #5386],
  with thanks to @almarklein for the contribution!
• Implement various marker.pattern options in histogram, bar and barpolar traces [#5520, #5537]
  with thanks to @s417-lama for the contribution!
• Implement ticklabeloverflow options on cartesian axes and colorbars to drop tick labels going outside div or domain [#5584]
• Implement (x|y|z)hoverformat, (u|v|w)hoverformat and valueformat to cartesian and gl3d traces [#5563]

Removed

• Drop support for old browsers IE9 and IE10 [#5376, #5380, #5460, #5491]
• Stop exporting v3 of d3 under Plotly.d3 [#5400, #5406]
• Stop attaching _has* plot types to fullLayout [#5409]
• Stop injecting MathJax config by default [#5514]
• Remove sane-topojson and MathJax v2.3 files from dist folder and change supported MathJax version to v2.7.5 [#5487, #5492, #5494]
• Reduce the number of exported methods from Plotly.Fx and Plotly.Plots in the API [#5420]
• Drop Plotly.plot from the API [#5412, #5370, #5393]
• Drop Plotly.Queue from the API [#5423]
• Drop non-object role keys from attribute definition [#5425, #5432]
• Drop deprecated contourgl and area traces as well as deprecated legacy
  pre-scatterpolar polar-related attributes bar.t, bar.r,
  scatter.t, scatter.r, layout.radialaxis, layout.angularaxis and
  gd.framework [#5399, #5408, #5409, #5398, #5438]

Deprecated

• Deprecate heatmapgl and pointcloud trace types for later removal [#5447]

Changed

• Add major versions e.g. "latest-v2" when publishing latest to CDN and keep "latest" for v1 [#5462]
• Switch to native-promise-only module to handle es6 promises [#5358]
• Switch to probe-image-size module to get width and height of images [#5388]
• Relax test for plain objects to enable validation in node.js and multiple window contexts [#5411, #5498]
• Display latitudes before longitudes in hoverlabels to comply with ISO 6709 (Standard representation of geographic point location by coordinates) [#5485]
• Adjust text shadow color in respect to paper_bgcolor for better dark mode display of
  sankey, parcoords and parcats traces [#5506]
• Improve sankey text namely support pseudo-html, fix textfont.color and avoid clipping [#5531]
• Make selection event data of scattergl on par with scatter traces [#5534]
• Fire plotly_unhover event when dragging [#5407],
  with thanks to @rreusser for the contribution!
• Include transforms and calendars in partial bundles [#5379, #5422]
• Require unminified mapbox-gl dependency for unminified bundles and
  revisit compression options for minified bundles [#5449]
• Remove header comments from the source files and only add headers to the top of
  dist files at build time [#5436, #5446]
• Guard against unexpected characters at build time [#5424]
• More maintenance work listed under the the 60th milestone!

Fixed

• Fix "toself" fill for scattergl traces to handle multiple polygons [#5355],
  with thanks to @ruijin for the contribution!
• Fix element targeting on hover in shadow DOM [#5256],
  with thanks to @dbluhm for the contribution!
• Hide gridlines and ticks overlapping "inside" ticklabels [#5550, #5586, #5589]
• Fix hover filter to display close period points [#5543]
• Fix spike on bar-like traces [#5542]
• Fix displaying zero threshold for indicator trace [#5430]
• Fix axis constraints for heatmapgl [#5476]
• Fix setTimeout functions to return in the case of undefined layouts [#5482]
• Avoid duplicate keys in object literals within plotly builds [#5458]
• Improve attribute compression and avoid redundant copyright comments in non-minified
  bundles [#5426, #5429, #5439]
• Provide links to all pull requests in the changelog [#5469]
• Fix syntax test on the dist files [#5471]
• Publish partial bundles using relevant tag from the package e.g. latest or rc [#5467]
• Place CDN publish script inside plotly.js repository [#5468, #5470]