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

# Browser support

Chart.js offers support for all browsers where canvas is supported.

Browser support for the canvas element is available in all modern & major mobile browsers. [CanIUse](http://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](http://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)