Replication Server and Replication Server support MSA. If you are using an earlier version of Replication Server, database-level replication is not supported. If the replication environment contains more than one replication server, all replication servers must have site versions of 12.6 or later if you plan to use database replication.
Also, route versions must be upgraded to 12.6 or later in the controlling Replication Server. Replication Servers between the controlling Replication Servers can be versions earlier than 12.6.
Use Replication Manager to upgrade routes. For more information, see Upgrade routes; and optionally see “admin show_route_versions,” Chapter 3, “Replication Server Commands” in the Replication Server Reference Manual.