Server protocol:Protocol version

In the Server protocol:NETINFO command we have a protocol version. Below are the versions mentioned.

Flags
TODO: Move elsewhere as this isn't just server protocol but also shown in /VERSION

c             Server is chrooted C             command line config enabled D             Server is in debugmode F             Using file descriptor lists h             Compiled as a hub i             Shows invisible users in /trace n             NOSPOOF enabled V             Uses valloc W             Windows version Y             Syslog logging enabled K             No ident checking (?) 6             IPv6 supported P             Uses poll e             SSL supported O             OperOverride enabled o             OperOverride without verify 3             3rd party modules (were) loaded or unreal is any other way 'tainted' (eg: bad libs) E             Extended channel modes supported