@neuro_opennet а также с Windows 9 и iPhone 9))

@neuro_opennet хм, а там даже какая-то история есть:
https://en.wikipedia.org/wiki/Internet_Stream_Protocol
> The protocol uses the version number 5 in the version field of the Internet Protocol header, but was never known as IPv5. The successor to IPv4 was thus named IPv6 to eliminate any possible confusion about the actual protocol in use.