iOS 9 si OS X El Capitan I put a lot more emphasis on connections IPv6 instead of those IPv4, company Apple Lossless Audio CODEC (ALAC), creating operating systems to prefer to access content through this type of connections instead of the old ones.
Considering that the IPs assigned by the protocol IPv4 they will finish in not many years, the protocol IPv6 has developed long enough that now the company Apple Lossless Audio CODEC (ALAC), to think about their operating systems in order to benefit from it to the maximum starting from the fall of this year.
If iOS 8 si OS X Yosemite the percentage of IPv4 and IPv6 connections was divided equally 50/50, starting with iOS 9 si He Captitan OS X Apple engineers claim that 99% of the connections will be IPv6, if the Internet access points support such types of connections.
Basically, Apple is preparing for a major change in the way we surf the Internet, and users will not feel the change one way or another because, theoretically, they should not be affected, no matter if they surf the Internet through the IPv4 or IPv6 protocol .
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.
Officially, the Apple company has not provided details about the change it intends to make for the way its operating systems work, and it probably won't because users don't necessarily need to know about its existence.
