Before you upgrade Web Server, perform the tasks described below.
It is generally recommended that all Java ES components on a computer system (and in a computing environment) be upgraded to Release 5U1. Release 5U1 Service Registry has hard upgrade dependencies on Application Server and Java DB, so these should be upgraded before upgrading Service Registry. Service Registry also requires that Windows Installer patch (126910–02) is already applied.
The Service Registry upgrade from Release 5 to Release 5U1 does not modify the Release 5 configuration data. You do not need to back up current data.