Another heads-up: I finally manged to stress test the v.12 version that supports xmr v8, and at least on the test net it works perfectly fine also on the phis. I haven’t ported it to KNCs, yet (KNL has many more users, and thus much higher priority :-/), but at KNL seems to work fine.
The latest release (v0.12) is available at its usual place (http://lukminer.net/releases) – but make sure to remember to change your algorithm flag (“-a”) to “xmrv8” once the fork hits. And of course, do not use the v8 flag before that fork happens.
Finally, a note on performance: Don’t be too surprised if you’ll see significantly lower hash rates once v8 hits – the additional operations they added to the inner loop are really expensive, so on the (non-asrock) development machine I was using I’m seeing a drop from about 2500 to about 1700 H/s. That’s a little bit more than I expected, but as I just said: The additional operations are expensive, so any other CPU or GPU miner will likely see quite an impact on hash rate, too … which means difficulty should adjust accordingly, at least after a few days.
With that – happy mining!