Command Central renames the old product installation directory, then uses the old directory name for the new product installation.

Benefits: Simple; similar to overinstall in that all paths, hosts, and ports remain the same. Can fully automate using custom composite templates.

Cautions: Risky; rollback is complicated. Significant downtime. Must back up live databases; use of cloned databases is not supported. Requires double disk space because old installation is still present. Requires extensive automated testing before production environments can be migrated.