The code is available as a customized Nevada build 81 image, or you can install the BFU bits on top of an existing build 81 install. It may work with a slightly older or newer build (I did some testing with build 82), but that has not been fully tested.
Plans are to put the features into Nevada after the beta period and your feedback.
Thanks to the engineering for all the effort in getting this out! Many of my customers have been waiting for this to become available.