SciChart.js v4.0 BETA: Everything You Should Know as the Release Date Approaches

Last updated: 29th of July, 2025

We are pleased to announce that the long-awaited release of SciChart.js v.4 is approaching. You can try out BETA version right now. This is a huge release with many new features, but before we get to that, some important things to note:

1. This is a BETA update, so there may be bugs. Please report them at support.scichart.com and SciChart.js forum, making clear which version you are using.

2. Documentation and examples are not yet complete. We will be updating the documentation and the examples to explain and show off all the new features in the coming weeks. Once we have the key features reasonably covered, then we will remove the BETA tag and publish the new v4 demo with all the new examples.

3. This is a major release that has breaking changes, though these are mostly small and easy to update. We have a detailed list, including how to update at Breaking Changes in v4.

Adding More JavaScript Chart Possibilities With Polar Charts

Polar Chart Example

This release is all about adding more in-demand charting possibilities, the biggest of which is polar charts. Our polar charts support line, column, mountain, band, scatter and heatmap series. No other charting library lets you adjust polar charts with rotating and tilting layouts. Whenever you specify the rotation and total angle and inner radius, SciChart will automatically size and position the chart.

Full List of Polar Chart Features

You can find the full list of polar chart features, including chart types, annotations and interactive elements in the table below.

Polar Chart Types & Series	Annotation Updates	Interactive Elements and other
Polar chart	Polar pointer annotation	Polar hit-test API
Partial polar chart	Polar native text annotation	Polar arc-zoom modifier
Polar line chart	Polar text SVG annotation	Polar cursor modifier
Polar band chart	Polar arc annotation	Polar data-point selection modifier
Polar column chart (area chart)	Polar custom SVG annotation	Polar mouse wheel zoom modifier
Polar heatmap	Polar line annotation	Polar pan modifier
Polar mountain chart		Polar zoom extents modifier
Polar pie chart		Polar legend modifier
Polar scatter chart		Sub-chart support for both cartesian and polar
Polar stacked column chart		Polar data-labels support
Polar stacked mountain chart		Custom texture background support
Polar gauge chart

 

Discover some of the latest polar chart possibilities in the image gallery.

Cartesian Chart Types

We also introduced new cartesian chart types such as rectangle, box plot, line-segment, triangle and polygon charts and implemented some useful features like texture fills. These new series types can take various data formats, so we have refactored the DataSeries to be able to have any number of arrays, e.g., Xyx, Xyxy, a 5-value format specifically for box plots, XyN for sharing x values between multiple series, and the ability to easily define whatever format you need. The new HTMLTextAnnotation and HTMLCustomAnnotation allow you to add more responsive content to the chart.

Cartesian Chart Features

You can find the full list of cartesian chart updates in the table below.

Cartesian Chart Types & Series	Annotation Updates	Styling
Triangle series	HTML text annotation	Custom texture background support
Rectangle series (treemap chart)	Custom HTML annotation	Gradient fill support for stacked column series
Box plot series	Arc annotation
Line segment series (vector field plot)

 

New Annotations & Chart Modifiers

There are new annotations, including arc segments, arrows and polar pointers, allowing you to create a huge variety of gauge charts. New polar chart modifiers provide the ability to rotate, zoom and pan in both cartesian and polar space to give you whatever view you want. Polar subcharts allow you to combine polar and cartesian charts on the same surface.

Axis & Series Inclusion

Axis and series inclusion are now standardized across modifiers, along with a new, more flexible way of specifying execute conditions for modifiers. Annotations now have their own clipping property, which applies to both native and SVG annotations, allowing for more annotation types to be used over the axes. Ordered rendering allows you to easily change the z-order of series and annotations, even allowing you to interleave series and annotations and define relative ordering.

Will v3 Still Be Supported?

We will continue to support version 3 with critical fixes for at least 6 months after v4 is fully released, but we encourage all users to update as soon as possible, as further features and fixes will only happen on v4.

When Will the v4 Release Be Fully Available?

We are currently creating documentation and examples and polishing the API. We hope that process will take 4–6 weeks. After that, we will publish the v4 release.

The screenshots throughout this article are all from our v4 examples app, which you can get and run from the release v4.0 branch of SciChart.JS.Examples on GitHub. This will be updated with demos over the next few months and will replace the live demo once v4 is fully released.

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