Questions regarding the anticipated IPv6

[tarakapraveen]

Hi friends,

Now we are using IPv4 .

1)When is the release of IPV6 ?Any country already started using IPv6 ?

2)If IPv6 comes what abt IPv4 ?(going to be used along with that or likely to be outdated)

3)If we go for IPv6 whether complexity increases or its same as IPv4?

Thanks in advance,

Regards,
Goud