Only transaction consistent is supported; convergent consistent is not supported. Consequently, when you migrate Version 1 registrations with CD_CONSISTENT=C, they may lose some compensation records. The subscriptions will continue to run without errors, however.
It is recommended that you not use the Version 5 Control Center when Version 5 Capture and Version 1 Apply coexist. However, if you need new Version 5 replication source and subscription definitions, you can use the Version 5 Control Center.