Strengthen your team’s ability to maintain application availability in environments where downtime is not an option. ELEARNING NG-ONPREM-2500S-FULL provides a product upgrade license for 1 server, giving organizations a structured path from CA XOsoft Replication for Applications Enterprise OS to XOsoft High Availability v.12.0 for Applications Enterprise OS with 1 Year Enterprise Maintenance. Built for PC-based deployment and delivered in English, this licensing package is suited to teams that need to preserve operational continuity while modernizing an existing installation. The upgrade model helps protect prior investment while moving to a supported software version with enterprise maintenance coverage. For infrastructure teams, the value is in precision: a single-server entitlement, a defined upgrade target, and maintenance continuity that supports planning, validation, and rollout discipline. It is a practical fit for organizations that want to reduce risk during transition without overbuying capacity they do not need.