interoperability with other Majordomo 0.2 implementation

I'm trying to use pigato to implement a client and broker, but c++ to implement worker based on Zeromq's reference Majordomo protocol implementation.
however pigato seems to send/expect different protocol string so they dont work together
e.g.
'C' for client instead 'MDPC02' 

is pigato compatible with Majordomo protocol ?
