The Changes.Summary structure contains commonly used information about a library item change.
The short message describing the content change. The message is truncated to the first 80 characters or first non-leading newline character, whichever length is shorter. This field will be unset if a message was not provided when the item content was changed.
The date and time when the item content was changed.
The user who made the content change. This field will be unset if the user could not be determined.
The version of the library item. When clients pass a value of this structure as a parameter, the field must be an identifier for the resource type: com.vmware.content.library.item.Version. When operations return a value of this structure as a result, the field will be an identifier for the resource type: com.vmware.content.library.item.Version.