I successfully upgraded my (2015) Master 7 today with Audio-GD.
I think somebody asked this here, about trying this in a virtual machine.
Well I did it that way, I was forced to. The knock off USB blaster I bought only had XP drivers.
I installed an XP VM, installed Quartus 12.1 standalone (somebody linked that here).
Installed TeamViewer, full screened the VM, no problems.
Mini review:
I ended up staying awake listening for 2hr before work. It was 5am upgrade time
I can't believe my ears. I recently spent $400 on a Singxer SU-1 to use with the M7.
To me it was a big upgrade, and well worth the $400. Now this update for free, I'm having a hard time deciding if it's a bigger upgrade than the SU-1.
I think it might be, it really brought this DAC alive.
I'll have to listen more, but WOW!.
I think SU-1 + dsp7 code makes this DAC better than my Yggdrasil too.
I'll have to directly A/B the two sometime to accurately know this tho.