Summary: Fedora Core 6—the latest iteration of Red Hat’s fast-moving, community-supported Linux operating system—comes with the most well-developed SELinux implementation we’ve yet seen, marked by a handy new policy troubleshooting tool. Fedora Core 6 also ships with a maturing, if still somewhat flaky, Xen virtualization implementation and a nicely put-together assortment of desktop applications. By Jason Brooks, eWEEK