BBC News reports: "The first big steps on the road to overhauling the net's core addressing system have been taken. ... On Monday the master address books for the net are being updated to include records prepared in a new format known as IP version 6."
The average person may never know that this conversion happened. Until today in the near future they may turn off IPv4 support. Then older operating systems which don't support IPv6 will stop being able to function properly. They will need special gateways that make the conversion between the two version of the protocol.