Since it's been announced now...
I have an alpha unit. It came with 1.9.8dev straight from $manufacturer. My
box still has markings from customs all over it.
Expect a new version with some minor fixes soon. A lot of firmware work
going on at the moment on various edgeOS product lines.
As an additional note, sometimes drivers get backported, this is how
1.9.7hotfix1 works on Infinity. There are multiple trees in various stages
of dev at any given time.
The Infinity started out on 1.9.0 (which is what my Infinity alpha hardware had) and went up from there as the various in between releases came up, up until the current 1.9.7 release.
The 1.9.8 dev releases are not currently for the Infinity or any previous ER hardware. That's about all I can say.
I'm dumb, Brielle is right.
1.9.0, 1.9.5, 1.9.7h1
1.9.8dev and 1.9.8b1 are for two other newer products.
Ubiquiti has been pretty active in developing improvements lately.
I do recommend anyone who does use the Edge* series in production that they join the beta program on the Ubnt forums to keep current on whats being worked on. It pays off in the long run, and gives you a chance to test out new features and fixes before deploying them in real world scenarios.
The Infinity isn't a perfect fit for everyone, but it is a 'disruptive' device and worth a look if you have > 1G needs. Now that its 'out there' in production, hopefully those that can put it to use will be able to give out real world numbers.
(Note: I don't work for Ubnt, but I've used many of their products in the Edge and Unifi lines. I only speak for myself.)