Hi,
I just registered in this forum when I saw this thread even though I have read quite a bit here already in the past. I'd love to test the new client.
My specs: MacBook Pro, macOS Sierra 10.12.1, usually Safari, also available: Firefox, Chrome.
My dominion knowledge: I've played the first time in January since then quite a bit but not all expansions.
Country: Germany (if that matters).
Edit: Also my flatmate has a Laptop using Fedora (Linux distribution), I would have to lookup the exact version etc. But he's also interested in testing.
I'll try to make it to the switch session.
Cheers,
Voltaire