Learn about the Replication Server Heterogeneous Edition version 15.2 to 15.6 migration path.
Install Replication Server 15.6 using the Replication Server installer. For information about upgrading Replication Server, see Replication Server 15.6 Configuration Guide for your platform.
Install Replication Agent 15.6 using the Replication Agent installer. For information about upgrading Replication Agent, see Replication Agent Primary Database Guide 15.5 > Appendix A: Upgrading Replication Agent.
If you do not have ECDA 15.0 ESD #3 installed, install ECDA 15.0 using the ECDA installer, then download and apply ESD #3. For additional information about ECDA 15.0 ESD #3, see the ECDA 15.0 ESD #3 Release Cover Letter available at http://www.sybase.com/downloads.
Install and use ExpressConnect for Oracle to connect to Oracle databases. See ExpressConnect for Oracle Installation and Configuration Guide for details.