Migrate Amazon Aurora PostgreSQL across major versions with active Debezium CDC connectors using native logical replication

Standard upgrade paths break active Debezium CDC replication slots on Amazon Aurora PostgreSQL, forcing hours-long re-snapshots. This post shows how to use native PostgreSQL logical replication to bridge a source and target cluster and cut your Debezium connectors over to the new major version with a brief, measured write pause and no re-snapshot.