Wired: Net’s Change of Address

“The Internet on Thursday began moving from its old
addressing system to a radically new one, though no one is likely
to notice.

“After four years of testing, the Internet Assigned Numbers
Authority on Thursday rolled out Version 6 of the Internet Protocol
(IPv6), the next-generation numeric addressing system for the
global network.”

“This is an historic moment in the continued development of the
Internet,” said Josh Elliott, IANA administrator…” The Internet
Engineering Task Force began work on IPv6 out of concerns that the
Internet would eventually run out of unique addresses.”