💎 Version 3.22.0

🆕 Enhancements

• Add a flag to group rows together (rangeBarGroupRows) in a multi-series timeline chart - thanks, @kgram007
• New event - beforeResetZoom
• dateformatter option added in xaxis.labels.formatter to allow the user to format dates when using xaxis.labels.formatter

🐞 Bug Fixes

• Corrected shade color in heatmap - fixes #1916
• X-axis title color - fixes #1922
• Treemap drop shadow; check the series length in theme - fixes #1935
• Prevent legend to take up all space - fixes #1835
• Stacked data labels bug fix - fixes #1951

Misc changes

• Add Simplified Chinese (zh-cn) locale. - Thanks, @f0rb1d