What's Changed

Quite a lot this minor release! We sent out a cry for help and many answered - thank you so much for that 🙌🏼

This release aims at internal maintainability, long lingering bugs, and needed improvements. Highlights include equidistant tick improvements, an active bar feature, and an ~85k/~9kb (gzipped) bundle size reduction 🚀

Feat

• Bar: Implement activeBar for Bar component by @andrewangelle in #3756
• CartesianGrid: add syncWithticks, horizonalValues, and verticalValues props to allow more grid line customization by @morozovkirill in #3746 solves #2153
• CartesianAxis: Improve interval option 'equidistantPreserveStart' by @nikolasrieble in #3768
• CartesianAxis: Throw an invariant when axisIds do not match between chart and axis components by @ckifer
• Brush: add onDragEnd event to Brush component by @simkesd in #3774

Fix

• Active Shape improvements
  • Funnel: activeShape should work with Tooltip by @andrewangelle in #3772
  • Scatter: activeShape should work with Tooltip by @andrewangelle in #3839
  • Pie: activeShape should work with Tooltip by @andrewangelle in #3818
  • RadialBar: activeShape should work with Tooltip by @andrewangelle in #3803
• CartesianGrid: Remove offset attribute from lines by @branberry in #3854 solves #3810
• ResponsiveContainer: style prop is now passed down correctly by @d-gottlieb in #3726
• Legend: "Functions are not valid as a React child" error in when a function is passed as the payload #3749 by @chris-mcdonald-dev in #3750
• Tooltip: Fix tooltip position when container uses transform scale by @MateuszTrN in #3748
• Tooltip: Tooltip does not include data from all charts when a separate dataset is passed to chart prop data and specified on Line/Area/etc prop data by @andrewangelle in #3733 fixes #3669

Refactor

Impossible to mention all of the great refactoring done this release thanks to @PavelVanecek (33 PRs in one month!!) and others! Notable improvements include (non-breaking) type safety enhancements and source code file size reductions, and unit test improvements that will help reduce regressions.

Chore

• Upgrade react-smooth to 2.0.5 - potentially fixes #1135 (edit: this was already fixed)
• Add performance testing tool by @PavelVanecek in #3829
• remove reduceCSSCalc by @HHongSeungWoo in #3820

Storybook

• Add storybook-addon-performance by @PavelVanecek in #3826
• many storybook improvements and fixes

🚀 New Contributors (!!) 🚀

• @d-gottlieb made their first contribution in #3726
• @andrewangelle made their first contribution in #3733
• @wanisramdani made their first contribution in #3751
• @MateuszTrN made their first contribution in #3748
• @chris-mcdonald-dev made their first contribution in #3750
• @PavelVanecek made their first contribution in #3759
• @simkesd made their first contribution in #3774
• @samtmorgan made their first contribution in #3778
• @Shashangbhagat made their first contribution in #3786
• @morozovkirill made their first contribution in #3746
• @branberry made their first contribution in #3854
• @HHongSeungWoo made their first contribution in #3820

Full Changelog: v2.8.0...v2.9.0