# Developers

Developer features allow extending and enhancing Chart.js in many different ways.

## Latest resources

Latest documentation and samples, including unreleased features, are available at:

 - https://www.chartjs.org/docs/master/
 - https://www.chartjs.org/samples/master/

## Development releases

Latest builds are available for testing at:

 - https://www.chartjs.org/dist/master/Chart.min.js
 - https://www.chartjs.org/dist/master/Chart.bundle.min.js

> Note: Development builds are currently only available via HTTP, so in order to include them in [JSFiddle](https://jsfiddle.net) or [CodePen](https://codepen.io), you need to access these tools via HTTP as well.

**WARNING: Development builds MUST not be used for production purposes or as replacement for CDN.**

## Browser support

Chart.js offers support for the following browsers:
* Chrome 50+
* Firefox 45+
* Internet Explorer 11
* Edge 14+
* Safari 9+

Browser support for the canvas element is available in all modern & major mobile browsers. [CanIUse](https://caniuse.com/#feat=canvas)

Thanks to [BrowserStack](https://browserstack.com) for allowing our team to test on thousands of browsers.

## Previous versions

Version 2 has a completely different API than earlier versions.

Most earlier version options have current equivalents or are the same.

Please use the documentation that is available on [chartjs.org](https://www.chartjs.org/docs/) for the current version of Chart.js.

Please note - documentation for previous versions are available on the GitHub repo.

- [1.x Documentation](https://github.com/chartjs/Chart.js/tree/v1.1.1/docs)