SciChart.js v3.4 is minor update to our JavaScript Chart Library which is backward compatible to version 3.0. Our team has added lots of features to improve SciChart, which are detailed below.

Version 3.4 at a glance   

1. Hoverable Annotations
2. DataLabels support for Stacked Column Series
3. New Chart Type! Smooth Stacked Mountain Series
4. Alternative Line Smoothing algorithms
5. Animations improvements
6. Engineering formatting for Axis Labels
7. Optionally disable loader animations
8. CursorModifier now supports non-uniform heatmap and contour series
9. PaletteFactory.createYGradient - helper method for creating paletteproviders that depend on y-value
10. SVG Annotations can now be placed behind the chart
11. SS.ms format for displaying milliseconds and seconds in SmartDateLabelProvider
12. createSuspended and nextStateRender for visual testing and chart image export improvements
13. Gradient fill for band series
14. Sync Vertical Chart axis sizes with SciChartHorizontalGroup
15. Sensible Column Widths for Columns, Error Bars, Candlesticks using dataPointWidthMode
16. ColumnSeries can draw different styles in the same series
17. Improvements to Splitting Line Charts by Thresholds
18. Added MemoryTests project to Github to allow debugging memory issues
19. New React / JavaScript Chart demos
20. Improvements to Documentation / Examples
21. Bug fixes, Improvements