Not even a beta, just a snapshot.
it’s stable enough to test around in my experience so far.
Now not even the snapshot is available 
The wait is frustrating, and buying another device just for the latest firmware features is just a waste.
I still have multiple clients that use the Brume and prefer not to toss it out.
I recently installed a Flint AX1800 at a client’s site and was super happy with the newer firmware, but had it in the back of my mind, that it is only a matter of time before they drop support for it in favor of Flint2.