DUPLICATE from 'tape' Backup with lower patch level than current

I would like a process to duplicate from 'tape' backups with an earlier patch level - I can't find a full example online. We have a scripted process which duplicates from a 'tape' production backup to a development database on a different server. If we want to use a backup that has a lower patch level than current, what is the process? For example, our usual process is currently where PRD backup is 19.22 and the databases PRD and DEV are also on 19.22. rman <<EOF connect target "$CONNECT_STRING" connect auxiliary / run { $ALLOCATE_AUX1 $ALLOCATE_AUX2 SET UNTIL SCN $CHECKPOINT_CHANGE;