From Foundation 6.4, flex is enabled by default and **only the new XY Grid is available**. However, others CSS versions are available for backward compatibility and the most common usage cases. For others uses and advanced customization, we recommand to build Foundation with custom settings (see others installation methods).
```html
<!-- foundation-float.min.css: Compressed CSS with legacy Float Grid -->
-# [Foundation for Sites](https://get.foundation) (v6.8.0)
+# [Foundation for Sites](https://get.foundation) (v6.8.1)
Foundation is the most advanced responsive front-end framework in the world. Quickly go from prototype to production, building sites or apps that work on any kind of device with Foundation. Includes layout constructs, like a fully customizable, responsive grid, commonly used JavaScript plugins, and full A11Y support.