Ars Technica has written a detailed review [0], there's some things on the networking side related to IPv6 and ECN, but that's pretty much it. APFS preview is i

Ars Technica has written a detailed review [0], there's some things on the networking side related to IPv6 and ECN, but that's pretty much it. APFS preview is interesting, but not really stable/usable yet from what I understand. [0] http://arstechnica.com/apple/2016/09/macos-10-12-sierra-the-ars-technica-review/ http://arstechnica.com/apple/2016/09/macos-10-12-sierra-the-...