On Jul 10, 2015, at 2:17 AM, Colin Johnston <colinj@mx5.org.uk<mailto:colinj@mx5.org.uk>> wrote: lots of 6GB downloads this morning :) Colin Begin forwarded message: From: Apple Beta Software Program <betaprogram@InsideApple.Apple.com<mailto:betaprogram@InsideApple.Apple.com>> Subject: Test-drive the OS X El Capitan public beta Date: 10 July 2015 05:08:06 BST To: colinj@mx5.org.uk<mailto:colinj@mx5.org.uk> The El Capitan public beta is now available from the Apple Beta Software Program. Test-drive it and let us know what you think. Also note that this particular release is also likely to further increase IPv6 traffic loads once out in the mainstream, as it includes some significant changes to Apple’s “Happy Eyeballs” implementation… (see attached) Current growth in IPv6 traffic doesn’t necessarily include significant iPhone participation, but this will change shortly. FYI, /John John Curran President and CEO ARIN === <https://www.ietf.org/mail-archive/web/v6ops/current/msg22455.html> David Schinazi <dschinazi@apple.com<mailto:dschinazi@apple.com>> Thu, 09 July 2015 22:00 UTC Hi everyone, Today Apple released the first public seeds of iOS 9 and OS X El Capitan. These seeds (and the third developer seeds released yesterday) include an improved version of Happy Eyeballs. Based on our testing, this makes our Happy Eyeballs implementation go from roughly 50/50 IPv4/IPv6 in iOS 8 and Yosemite to ~99% IPv6 in iOS 9 and El Capitan betas. ...