The Xen Virtual Machine Monitor will soon be undergoing its third major release, and is maturing into a stable, secure, and full-featured virtualization solution for Linux and other operating systems. Xen has attracted considerable development interest over the past year, and consequently the 3.0 release includes many exciting new features. This paper provides an overview of the major new features, including VM relocation, device driver isolation, support for unmodified operating systems, and new hardware support for both x86/64 and IA-64 processors.

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