Upgrade Guide for DB2 UDB for z/OS > Database and UI Upgrade Planning >

New Upgrade Features

Upgrades: Releases 7.0.x, 7.5.x, 7.7.x.

Environments: All environments.

Release 7.8

The following new upgrade features were introduced at Release 7.8:

• Platform support for multiple versions of components. You can install multiple versions of the Siebel Server, and Siebel Web Server Extension on the same machine. You cannot install multiple versions of the Siebel Gateway Server.

  For example, you are upgrading from Release 7.7 to the current release. You have thoroughly tested the Siebel Server in the current release and are ready to install it in your production environment. You can install the new Siebel Server on production machines where Release 7.7 of the Siebel Server is installed. You do not have to take the machines out of service and uninstall the 7.7 Siebel Server before installing the new Siebel Server.

  This reduces the downtime required to transition from an installed version of an Enterprise component to a new version.

  You cannot run two different versions of the same component on one machine. For example, in the scenario above, you cannot run both the 7.7 version of the Siebel Server and the current release version at the same time.

  For information on how to install Enterprise components, including the Gateway Server, Siebel Server, and Siebel Web Server Extension, see Siebel Installation Guide for the operating system you are using.

• Postmerge utilities can be run multiple times. After the repository merge completes, the postmerge utilities no longer start automatically. You must start them manually, and you can run them multiple times.

  If the postmerge utilities do not complete successfully, you do not always have to rerun the repository merge. Depending on the problem, you only have to rerun the postmerge utilities.

Release 7.7

The Incorporate Custom Layouts (ICL) upgrade feature was introduced at Release 7.7. This feature enables you to preserve the UI look and feel of your currently installed release during the repository merge, reducing the workload required to reconfigure customizations after the upgrade. ICL is available for Siebel 7.x upgrades only; however, it is included in Release 7.7.2 and later. For more information, see About the Incorporate Custom Layout (ICL) Upgrade Option.