Highlights:

Implemented enhancements:

• Multiple colors for valueline (Fixes #3480) #3709 (AlexeiGitH)
  • use useValueColorForLine to enable the same colors
• Add Collection conformances to ChartDataSet types #3815 (jjatie)
• improvements in barRect height calculation #3650 (potato04)

Fixed bugs:

• CombinedChartView's candleData don't display in v3.2.0 #3662
• Incorrect behavior for AxisBase.axisMaxLabels #3656
• Horizontal Bar Chart legend issue #3301
• Fixes sharp edges on the line chart #3764 (stokatyan)
• Fix wrong assignment to axisMaxLabels property #3721 (ggirotto)
• Fix legend offset bug for horizontal bar chart (Fixes #3301) #3736 (SvenMuc)
• Add missing properties to copy(with:) methods #3715 (dstranz)
• Fix applying lineCap value for line chart data sets (Fixes #3739) #3740 (anton-filimonov)
• Fix memory leak after rendering #3680 (YusukeOba)
• Fix condition that is checked before chartTranslated delegate method call #3804 (anton-filimonov)

Other merged pull requests:

• fix #3719 #3778 (liuxuan30)
• Turned gradient components and locations into constants #3775 (jjatie)
• add chartScaled() call after double tap in BarLineChartViewBase #3770 (artemiusmk)
• fix issue #3662 #3664 (Michael-Du)
• Make NSUIAccessibilityElement initializer public. #3654 (417-72KI)
• Update document to latest format #3621 (kemchenj)
• Feature - ChartView Pan Ended Delegate Call #3612 (AntonTheDev)
• Axis Renderers Cleanup #3164 (jjatie)

Full changelog: https://github.com/danielgindi/Charts/blob/master/CHANGELOG.md