Operation: Creating a New Version of an Asset
On versioning, if the root component is added to the set to be versioned, then the sub-components will also be added to the set. The direction of the association does not play a role in defining the set, only the containing designation.
If you create a new version of an asset that is the root component of a composite asset and the root component is related to one or more of the other components via composition relationships, CentraSite automatically creates a new version of each of these other components.