: Combine multiple physical servers into a single management unit for easier scaling.

However, over time, Citrix restricted the "Free" tier, moving high-value features behind a paywall and limiting the number of hosts in a free pool. This led many users to seek alternatives that stayed true to the original open-source promise. XenServer 8.0 and Modern Entitlements

: Automatically restart VMs on a different host if a physical server fails.

A hypervisor is useless without a way to manage it. This is where the "Free" conversation usually hits a snag.

: It includes almost all the "Premium" features of XenServer—such as live storage migration and advanced networking—for free.

: Modern versions now fully support Windows 11 VMs, including Virtual TPM.