RTL cannot replicate referential constraints specified in replication definitions if the outbound route version is earlier than 15.5.
RTL works if the inbound route version is earlier than 15.5. However, no referential constraint information is available to a Replication Server with version 15.5 or later.
Continuous replication is the default replication mode available to all supported versions of Replication Server. RTL is available only with Replication Server 15.5 and later.
