The server components that you must upgrade include View Connection Server, replicated servers, and security servers. Depending on the optional components you use, you might also need to upgrade View Composer. If you plan to use View Client with Local Mode, you must also install or upgrade a View Transfer Server instance.

During an upgrade, Horizon View does not support View Composer provisioning and maintenance operations, local mode operations, or View Transfer Server publish operations. Operations such as provisioning and recomposing linked-clone desktops, checking out or checking in desktops, and publishing View Composer base images are not supported during the transitional period when any Horizon View servers are still running the earlier version. You can successfully perform these operations only when all instances of View Connection Server, View Composer, and View Transfer Server have been upgraded.

For Horizon View patch releases, see Applying Horizon View Patches.