v7.3.0

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• Add d3.symbolsStroke. Thanks, @​hemanrobinson!
• Add d3.symbolsFill, replacing (deprecating) d3.symbols.
• Add d3.symbolAsterisk.
• Add d3.symbolDiamond2.
• Add d3.symbolPlus.
• Add d3.symbolSquare2.
• Add d3.symbolTriangle2.
• Add d3.symbolX.
• Add d3.link.

v7.2.1

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• Fix stratify.path when the top-level directory is only a single character.
• Fix stratify.path when paths contain multiple trailing slashes.

v7.2.0

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• Add stratify.path.

v7.1.1

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• d3.rank can now take a comparator in addition to an accessor.
• d3.rank, d3.sort, d3.bisector, and d3.groupSort now require comparators to have exactly two arguments.

v7.1.0

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• Add d3.rank.

v7.0.4

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• Default the base-10 log tick format to ~s (SI) instead of .0e (exponential).

v7.0.3

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• Don’t mangle InternMap or InternSet in the generated UMD bundle.

v7.0.2

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• Adopt interning for set operations. # 1�7231
• Fix InternSet and InternMap’s delete operation. mbostock/internmap@2.0.2
• Fix log.ticks to return exact values for integer bases. # 1�7253
• Fix log.tickFormat to trim trailing zeroes by default if no precision is specified. # 1�7254

v7.0.1

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• Fix d3.sort, d3.bisector, and related methods to handle undefined order. # 1�7217

v7.0.0

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Breaking changes:

• Adopt type: module. # 1�73501
• Adopt InternMap for ordinal scale domains.
• d3.ascending and d3.descending no longer consider null comparable.
• d3.bin now ignores nulls.
• Convert array-likes (e.g., live NodeList) to arrays in d3.selectAll and selection.selectAll.

Non-breaking changes:

• Add d3.mode.
• Add d3.flatGroup and d3.flatRollup.
• Add transition.selectChild.
• Add transition.selectChildren.
• Adopt robust predicates for Delaunay triangulation.
• Fix delaunay.voronoi’s computed circumcenters for collinear points on the hull.
• Allow brush.move and brush.clear to take an optional event.
• Allow selection.merge to take a transition.
• Allow selection.join to take transitions.
• Apply linear binning for d3.contourDensity.
• Generate contours.thresholds at nicer round tick values.
• Fix axis.tickArguments to accept an iterable.
• Fix axis.tickValues to accept an iterable.
• Fix undefined event during brush.move.
• Fix drag event listeners to be explicitly non-passive where necessary (# 1�778).
• Fix zoom event listeners to be explicitly non-passive where necessary.
• Fix variable initialization error in d3-zoom.
• Expose d3.ZoomTransform constructor.
• Update dependencies.
• Make build reproducible.

D3 now requires Node.js 12 or higher. For more, please read Sindre Sorhus’s FAQ.

v6.7.0

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• Add d3.timeTicks and d3.utcTicks.
• Add d3.timeTickInterval and d3.utcTickInterval.

v6.6.2

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• Fix handling of null with quantitative scales; null is now considered an “unknown 1�7 value, not zero.

v6.6.1

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• Fix rounding error in d3.ticks.

v6.6.0

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• Add d3.fcumsum. Thanks, @​Fil!
• Add d3.curveBumpX and d3.curveBumpY. Thanks, @​Fil!
• Add axis.offset.
• Only offset the axis by 0.5px on low-resolution devices (devicePixelRatio ≄1�7 1).
• Update dependencies.

v6.5.0

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• Add d3.groupSort.
• Allow d3.sort to take multiple accessors.

v6.4.0

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• Add d3.InternMap.
• Add d3.InternSet.
• Change d3.group, d3.rollup et al. to use InternMap.

v6.3.1

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• Fix last bin with d3.bin when the values are not numbers.
• Fix last bin with d3.bin when the tick increment is fractional.

v6.3.0

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• d3.sort now may accept an accessor.
• Fix zero-width last bin with d3.bin.

v6.2.0

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• Add d3.nice.
• Add d3.every.
• Add d3.some.
• Add d3.filter.
• Add d3.map.
• Add d3.reduce.
• Add d3.reverse.
• Add d3.sort.
• Add d3.difference.
• Add d3.disjoint.
• Add d3.intersection.
• Add d3.superset.
• Add d3.subset.
• Add d3.union.
• Fix d3.bin to nice the domain by default, ensuring uniform bin widths.
• Fix d3.scaleQuantile performance regression. Thanks @​ilijapuaca!

v6.1.1

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• Fix imprecision with bin.thresholds(count).

v6.1.0

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• Add d3.shuffler.
• Add d3.bisectCenter.
• Fix off-by-one with bisector.center.
• Accept any integer seed with d3.randomLcg.

v6.0.0

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• Adopt ES2015, including support for iterables and collections (Map and Set).
• Remove d3.event; selection.on now passes events directly to listeners.
• Remove d3.mouse, d3.touch, d3.touches, d3.clientPoint; add d3.pointer and d3.pointers.
• Remove d3.nest; add d3.group and d3.rollup.
• Remove d3-collection; see d3-array.
• Remove d3-voronoi; add d3-delaunay.
• Remove support for Bower.

For more on what’s new, see CHANGES.

To upgrade from D3 5.x, see the migration guide.