When you install the newer version of ZENworks, the older version file or package will be retained. The retained file or package names will have superseded as suffix. These superseded files allow you to enable the older version components that are disabled after updating.
Superseded files are in the following location:
Windows: %ZENWORKS_HOME%\install\downloads
Linux: /opt/novell/zenworks/install/downloads
These files might not be deleted even after deleting the update from the zone. Before deleting the superseded files manually, refer to the TID 7012095.