If you have a single DualShield 5 backend server or all-in-one server, follow the guide below to upgrade it to DualShield 6

Upgrade a DualShield 5 backend server

If you have a cluster of 2 or more DualShield 5 backend servers or all-in-one servers, follow the guide below to upgrade it to DualShield 6

Upgrade a DualShield 5 cluster