Release Status is not applied to Relationships. Several Relationships, such as Mat1UsesMaterial, contain attributes (mass on the Mat1UsesMaterial relationship) that should be locked when the Revision is Released. Obviously the mass of the material used on a part should not be modified without a Change Order.
Relationships do not appear to have any "hooks" in BMIDE where I could attach a condition.
Any ideas on how I can "lock" the relationship attributes based on Revision Status?