If the programs don't access or manipulate VST (Virtual System Tables) data, there is no need to re-compile as the updatevst command only update the VST tables.
Ensure the proutil dbname -C updatevst is being running on the right version.
- If possible, keep all the databases updated with updatevst on all environments.
Considerations:
Consider having all databases with the updatevst, unless you have a reason for keeping them without updating the vsts.
As updatevst modifies schema it is strongly advised that a complete database backup be performed before attempting any schema modification.