The Fedora Community released re-spins of Fedora Core 5 last week. It incorporates the latest updates available for the release which leads to less download time after your installation. The kernel-2.6.15-1.2054_FC5 shipped with FC5 disallowed the loading of any non-GPL modules. This was quickly fixed but marred the release.
Additionally the Fedora Community plans to re-spin often. Re-Spins will be provided each month for supported releases. This is a welcome addition for people that wait until a release settles down and mirrors the consistent release schedule that commercial vendors are adopting.