JesusFreke just released RC9. Download JF RC9 UK here. Details can be found on JesusFrekes new Andblogs.net blog.

Or you can download and install JFupdater and use that to upgrade to the latest version. JFupdater will check (at set intervals) for new updates and if found will allow you to download them and will assist with installing them. Updating to new JF roms using JFupdater is almost as easy as OTA updates were.