Is Bootstrap 2.1 compatible with jQuery user interface?

The older Bootstrap is not known to work out of the box with the jQuery user interface, as you can see from this github discussion ,

There are several mashups of the two, including jQuery Bootstrap by John Seigers and jQuery UI Bootstrap by Addie Osmani.

Are these mashup files still necessary with the new version of Bootstrap, or can you just use Bootstrap and jQuery UI out of the box (as scheduled for an indefinite time in the github discussion)?