Migrating the native messaging protocol to a 64bit-wide version variable. Allows to increment, practically indefinitely, various builds/version numbers for the NetCPU processor-mechanisms thereby effectively filtering any of the accidentally-old/version-trailing processors connecting from the older comps/boxes...
To preserve backwards compatibility (i.e. to allow older/stale versions of the messaging protocol to be updated automatically when such boxes go online), the port-number for the new update_server has been changed (with the older-compatible version still running on the old port, serving out the updated binaries to older-connecting boxes).