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Aruba Central On-Premises Online Help
Upgrade Primary Cluster from WebUI
Primary cluster can be upgraded either from the user interface or command line interface (CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. ). To upgrade the HPE Aruba Networking Central On-Premises primary cluster from the WebUI, navigate to Maintain > System Management > Version.
For more information on online upgrade, see Online Upgrade Through the Versions Page.