I migrated my replication destination machine from NappIT 0.9f6 and Omnios151014 to NappIT 19.06h and Omnios151030.
Replication between my primary machine, which is still NappIT 0.9f6 / Omnios151014 and the newly updated replication machine does work.
However, I did find the NappIT > User > Restore Setting extension did not work, i guess it was too much of a leap from 0.9f6 to 19.06. I've manually reconfigured my replication jobs and everything seems to be working OK.
Regards
Bob