If the change occurred on a collection, collectionUUID indicates the
collection's :abbr:`UUID (Universally Unique Identifier)`. If the change
occurred on a view, collectionUUID doesn't exist.
.. versionadded:: 6.0
If the change occurred on a collection, collectionUUID indicates the
collection's :abbr:`UUID (Universally Unique Identifier)`. If the change
occurred on a view, collectionUUID doesn't exist.
.. versionadded:: 6.0