Fedora Core 5 is the latest Linux release from the Red Hat-sponsored Fedora Project, 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 Red Hat Enterprise Linux (RHEL) 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.