We’ve just updated all the React components in Tailwind UI as well as our Next.js templates to use Headless UI v1.0, the latest major version of this library that we released just a couple weeks ago.
Headless UI v1.0 is jammed-packed with new features, including built-in anchor positioning, a new checkbox component, combobox list virtualization, and much more. See our announcement post for all the details.
We recommend upgrading existing Headless UI v1.x projects to this latest version, and have put together a detailed upgrade guide explaining what’s all changed.