If you are upgrading an existing version of OpenEdge Replication, be sure to back up the following files:

Because OpenEdge upgrades the database.repl.recovery files, once you upgrade to OpenEdge you cannot return to versions of OpenEdge Replication prior to Release using your OpenEdge files. If you need to return to a previous version of OpenEdge Replication on the source machine, you must back up your source database, start after-imaging, and enable and configure OpenEdge Replication.

On the target machine, you must set up your structure file, restore your backup from the source, and enable and configure OpenEdge Replication. You can then run OpenEdge Replication by simply starting your source and target databases with an OpenEdge Replication qualifier.