When upgrading Release 5 Service Registry to Release 5U1, consider the following aspects of the upgrade process:
General Upgrade Approach. The upgrade is achieved by patching Release 5 Service Registry.
Upgrade Dependencies. Service Registry has dependencies on a number of Java ES shared components (see Table 1–8), none of which need to be upgraded when you perform a maintenance upgrade of Service Registry.
Backward Compatibility. Release 5UI Service Registry is backwardly compatible with the Release 5 version.