To upgrade existing StoreFront 2.0 through 2.6.x deployments to this version of StoreFront, run the StoreFront 3.0.x installation file. Releases before StoreFront 2.0 cannot be upgraded directly. Instead, you must first upgrade StoreFront 1.2 to StoreFront 2.0 before upgrading to this StoreFront. Similarly, you cannot upgrade Receiver StoreFront 1.1 to this StoreFront directly. You must upgrade Receiver StoreFront 1.1 to StoreFront 1.2 and then again to StoreFront 2.0 before finally upgrading to this StoreFront.
When the upgrade process is started, it cannot be rolled back. If the upgrade is interrupted or cannot be completed, the existing configuration is removed but StoreFront is not installed. Before starting to upgrade, you must disconnect users from the StoreFront deployment and prevent users from accessing the servers while the upgrade is in progress. This procedure ensures that all StoreFront files are accessible by the installer during the upgrade. If the installer cannot access any files, they cannot be replaced and the upgrade fails, resulting in the removal of the existing StoreFront configuration. StoreFront does not support multiple server deployments containing different product versions. All servers in a group must be updated to the upgraded version before granting access to the deployment. Concurrent upgrade is not supported for multiple server deployments, servers must be upgraded sequentially. Citrix recommends that you back up your data before upgrading.
Uninstalling StoreFront removes the authentication service, stores, users' application subscriptions, Receiver for Web sites, Desktop Appliance sites, and XenApp Services URLs. If you decide to uninstall StoreFront, you must manually recreate your services, stores, and sites when you reinstall StoreFront. Upgrading enables you to preserve your StoreFront configuration and leaves users' application subscription data intact. Users do not need to resubscribe to all of their applications.
Upgrading the operating system version on a server running StoreFront is not supported. Citrix recommends that you install StoreFront on a new installation of the operating system.