On UNIX systems, CA Gen Release 8.5 does not require that you uninstall CA Gen 8.0. The CA Gen Release 8.5 can run side-by-side with CA Gen 8.0 in different directories on the same system.
Since installations of CA Gen components are associated to named instances, you must use a different names instance when installing CA Gen Release 8.5 on a UNIX system that already has CA Gen components from earlier releases installed. If you use the same instance for the new installation, a warning screen displays that asks you to restart the installation and provide a different name. The warning screen can also display when you attempt to install CA Gen Release 8.5 without a named instance, and you did not supply a named instance when installing an earlier version of CA Gen.
If you install CA Gen Release 8.5 in the same directory as an earlier version of CA Gen and the directory is not empty, the installation process renames (and retains) configuration files that have been modified in the earlier version. After installation, you must migrate the work you did to customize an earlier release's configuration file.
User exits included with CA Gen may change during the installation of any new release or service pack.
Important! Backup customized user exits before begin the install process.
When installation completes, check to see if the installation updated your modified user exits. If the installation updated the user exit, you must make the modifications to the new version of the user exit and rebuild it. Do not just replace the updated user exit with the previous version.
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