'The latest MSN Messenger protocol, named MSNP10 is reportedly already being accepted by the MSN Messenger Test Servers as a valid protocol!
The new protocol will possibly be implemented as early as the 6.1.0153 BETA build! This means that it is very likely that MSN Messenger 6.1 Final will be using this new protocol.
ZoRoNaX, an MSN Messenger Protocols Specialist estimates that build 6.1.0153 was compiled on the 13th October 2003.
Unfortunately, authorization with the Passport Servers seems unsuccessful so far. You can post a follow up on this discussion at the MsnFanatic.com Forums!
[Reported by: ZoRoNaX ]'
This should be very interesting!