The latest test build is the first version of JoinFS to support X-Plane. It should be functional, with the exception of some shared cockpit features, which will be added shortly. This is basically a chance to get some testing done and feedback on the work done so far.
Please read these notes, http://pmem.uk/joinfs/manual.html#xplane, before trying it out.
If you are unfamiliar with the test build, please read this, http://pmem.uk/joinfs/forum/viewtopic.php?f=2&t=491
Thanks for all your patience so far to those waiting for X-Plane support. I agree that it needed doing. Hopefully the wait will soon be over.
Peter