There's a genuine question in there that would be easier to get an answer without your judgements...
OS X Hypervisor Framework, which this uses via xhyve, is only available starting on OS X Yosemite v10.10.
https://developer.apple.com/library/mac/releasenotes/MacOSX/...
Hypervisor.framework (which xhyve depends on) was only added in 10.10, it's unlikely to work in anything less than that.
It's hard to say until one of the Docker 4 Mac employees [hopefully] steps in. I'm also keen to find this out!
Re:Docker for Mac Beta Review
by netheril96 on Monday April 25, 2016 @07:11PM
(#11568137)
The latest piece is 10.11.
I'm running the latest (build: 6072) on 10.10.5.
edit thanks for the correction netheril96!
I'm curious about the state of compatibility because I've drawn a line in the sand -- and refuse to upgrade from 10.9 (since many things seem to be getting only worse and less stable in MAC OS land :).