The configuration database version number of this managing agent. If a management module is not present, this object's value is a zero-length string. Each management agent contains a database version that is determined by the version of the agent's firmware. Different firmware versions MAY or MAY NOT have the same database version number. Usually a database version number changes only when new features are added. Database version numbers are used to determine which components of non-volatile configuration may be synchronized between active and standby management modules. A component belonging to a higher (newer) database version may not be present in a lower (older) database version; in this case, the component will not be updated in the older database.