Fedora Core 5 is the latest Linux release from the Red Hat-sponsored <a href="http://www.fedora.redhat.com ">Fedora Project</a>, a free-to-download distribution that's mostly community developed and aimed at developers and hobbyists. As such it’s very much cutting edge, with Fedora Core regarded as a test bed for upcoming technologies. Technologies that could, eventually, make it into the commercial <a href="http://www.europe.redhat.com/software/rhel/">Red Hat Enterprise Linux (RHEL)</a> product, but only when fully proven and debugged. The Fedora release cycle is much shorter than for RHEL. Indeed, it’s just nine months since version 4 was released, although a lot has happened in that time.