Quite frankly yes. Because in most cases, speaking from experience, after model change they will be using a new model without doing proper conversion of old da

Quite frankly yes. Because in most cases, speaking from experience, after model change they will be using a new model without doing proper conversion of old data. This happened to cadastral data over here - new schema required some fields explicitly, while old data did not have them digitized, and country-wide system was made with such assumptions. It does not work to this day properly. Archive the old chain, deploy the new one with migrated latest state from the old chain transformed to new model. keep working.