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# Developers
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Developer features allow extending and enhancing Chart.js in many different ways.
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## Latest resources
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Latest documentation and samples, including unreleased features, are available at:
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- < https: // www . chartjs . org / docs / master />
- < https: // www . chartjs . org / samples / master />
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## Development releases
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Latest builds are available for testing at:
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- < https: // www . chartjs . org / dist / master / chart . js >
- < https: // www . chartjs . org / dist / master / chart . min . js >
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:::warning Warning
Development builds **must not** be used for production purposes or as replacement for a CDN. See [available CDNs ](../getting-started/installation.html#cdn ).
:::
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## Browser support
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All modern and up-to-date browsers are supported, including, but not limited to:
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* Chrome
* Edge
* Firefox
* Safari
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As of version 3, we have dropped Internet Explorer 11 support.
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Browser support for the canvas element is available in all modern & major mobile browsers. [CanIUse ](https://caniuse.com/#feat=canvas )
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Run `npx browserslist` at the root of the [codebase ](https://github.com/chartjs/Chart.js ) to get a list of supported browsers.
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Thanks to [BrowserStack ](https://browserstack.com ) for allowing our team to test on thousands of browsers.
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## Previous versions
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To migrate from version 2 to version 3, please see [the v3 migration guide ](../getting-started/v3-migration ).
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Version 3 has a largely different API than earlier versions.
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Most earlier version options have current equivalents or are the same.
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Please note - documentation for previous versions is available online or in the GitHub repo.
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- [2.9.4 Documentation ](https://www.chartjs.org/docs/2.9.4/ )
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- [1.x Documentation ](https://github.com/chartjs/Chart.js/tree/v1.1.1/docs )