Status

[Deantwo]

I imagine that if a blueprint you are using in your save-game is updated, then the current blueprint you have been using should be marked as obsolete somehow, and the new blueprint be added to the save-game. Then any buildings/ship you construct from that point on will use the new blueprint, leaving all previous buildings/ships as they were with the old now obsolete blueprint.

However this would likely require a cleanup function to delete obsolete blueprints that aren't used in the save-game anymore, or else someone could really blot the size of people's save-games if they kept updating a workshop blueprint.