If upgrading, please see the [blog post for 3.6.1](https://blog.jquery.com/2022/08/26/jquery-3-6-1-maintenance-release/). This includes notable differences from the previous version and a more readable changelog.
[Babel](https://babeljs.io/) is a next generation JavaScript compiler. One of the features is the ability to use ES6/ES2015 modules now, even though browsers do not yet support this feature natively.
There are several ways to use [Browserify](http://browserify.org/) and [Webpack](https://webpack.js.org/). For more information on using these tools, please refer to the corresponding project's documentation. In the script, including jQuery will usually look like this...
AMD is a module format built for the browser. For more information, we recommend [require.js' documentation](https://requirejs.org/docs/whyamd.html).
```js
define( [ "jquery" ], function( $ ) {
} );
```
### Node
To include jQuery in [Node](https://nodejs.org/), first install with npm.
```sh
npm install jquery
```
For jQuery to work in Node, a window with a document is required. Since no such window exists natively in Node, one can be mocked by tools such as [jsdom](https://github.com/jsdom/jsdom). This can be useful for testing purposes.