v3.0.1

• Remove deprecated step argument from time.ticks and time.nice. #183

v3.0.0

• Accept iterables wherever appropriate. #163
• Adopt ES Map; drop d3-collection dependency. #165

Note: this release adopts ES2015 language features such as for-of and drops support for older browsers, including IE. If you need to support pre-ES2015 environments, you should stick with d3-scale 2.x or use a transpiler.

v2.2.2

• Add missing export for d3.scaleDivergingSymlog.

v2.2.1

• Revert adoption of ES Map; this will happen in a major release.

v2.2.0

• Add domain and range (or interpolator) convenience constructors for all scale types. (#157)
• Add default constructors for sequential and diverging scales. (#159)
• Add d3.tickFormat. (#148)
• Add d3.scaleSymlog. (#105)
• Add transformed sequential scales (e.g., d3.scaleSequentialLog). (#62)
• Add transformed diverging scales (e.g., d3.scaleDivergingLog). (#62)
• Add d3.scaleSequentialQuantile for p-quantiles. (#93)
• Add scale.unknown for all scale types. (#97)
• Allow unlimited band.paddingOuter and point.padding. (#102)
• For collapsed domains, use midpoint of domain or range rather than start. (#117)
• Clarify documentation. (#123, #132)

v2.1.2

• Housekeeping.

v2.1.1

• Update dependencies.

v2.1.0

• Add d3.scaleDiverging.
• Fix treatment of degenerate domains in d3.scaleSequential. (#130)

v2.0.0

• Move color schemes to d3-scale-chromatic.
• Remove category20* color schemes. (#96)

v1.0.7

• Don’t try to generate sub-millisecond ticks for time scales. Thanks, @FracturedShader!