Replication must be disabled prior to a database version migration. Once the migration is complete replication will need to be re-enabled.
To disable replication:
1) Make a backup of the source database
2) Disable replication by using:
Source -> proutil <database name> -C DisableSiteReplication source
Target -> proutil <database name> -C DisableSiteReplication target
3) Remove <database name>.recovery files in source and target hosts.
4) Disable after imaging on source using:
proutil <database name> -C aimage end
5) Convert the database version as outlined in Article:
What are the steps to migrate a database from 10.X to 11.X?.
When <DLC>\bin\*dbutils cannot be used to disable replication when the older version is no longer available, a license file with the OpenEdge Replication license is required. Refer to Article:
