Returns a map of old category IDs and corresponding active category IDs defined for the site to which the request was sent. Typically used to update an older item definition with a new category ID prior to listing the item.
Version value assigned to the current category mapping data for the site. Compare this value to the version value the application stored with the mappings the last time the application executed the call. If the versions are the same, the data has not changed since the last time the data was retrieved and stored.
See the Field Index to learn which calls use CategoryVersion.