The new directory version optional argument specifies
    the DECdns version number the new directories will
    have at this clearinghouse. Specify the version-number
    as Vx.y.z, where x defines the major release number,
    y specifies the minor version number, and z specifies
    an ECO level. This argument is optional. Set the value to
    V1.0.0 if you intend to create DNS Version 1 directories.
    Set it to  V2.0.0 to create only DECdns Version 2
    directories. If you omit this argument, the default
    is V2.0.0.