v7.1.1

• 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

• Add d3.rank.

v7.0.4

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

v7.0.3

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

v7.0.2

• Adopt interning for set operations. #231
• Fix InternSet and InternMap’s delete operation. mbostock/internmap@2.0.2
• Fix log.ticks to return exact values for integer bases. #253
• Fix log.tickFormat to trim trailing zeroes by default if no precision is specified. #254

v7.0.1

• Fix d3.sort, d3.bisector, and related methods to handle undefined order. #217

v7.0.0

Breaking changes:

• Adopt type: module. #3501
• 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 (#78).
• 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

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

v6.6.2

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

v6.6.1

• Fix rounding error in d3.ticks.