SonicWALL Upgrades This section describes the procedures for upgrading SonicWALL appliances. This functionality includes adding nodes, content filter subscriptions, VPN functionality, VPN clients, anti-virus licenses, and more. When a Dell SonicWALL GMS subscription service (such as warranty support, anti-virus, or content filtering) is about to expire, the GMS administrator receives expiration notifications through email prior to the expiration. The email notification is sent once a day (if applicable) and lists all managed SonicWALL appliances with expiring subscription services. To upgrade SonicWALL appliances, complete the procedures listed in the following sections: • Upgrading the Node License • Purchasing Upgrades • Activating the Upgrades • Viewing Deployments