What happens to logical replication after running pg_upgrade?

What happens to logical replication after running pg_upgrade? drop replication slot postgres SELECT pg_drop_replication_slot FROM pg_replication_slots WHERE slot_name IN ; The replication slots can drop slot safe Any unused replication slot must be dropped Slots hold on to Postgres WAL logs and relevant system catalogs until changes have been read by a

drop slot safe Drop the replication slot with the name specified by --slot , then exit In --drop-slot mode, delete the slot with this name -t --two-phase Enables

drops of gold slot The slot state state=present implies the slot must be present in the system state=absent implies the groups must be revoked from target_roles  Replication slots were introduced in PostgreSQL to help ensure a primary PostgreSQL instance does not remove WAL files before a replica has