Why doesn the newest version of InterWorx always support the newest versions of all supported distros?
Support for major updates for supported distros (e.g. RHEL 5, Fedora 5 and 6) is not as easy as simply installing InterWorx on a box running the new version, testing and tweaking as necessary. Please read the next question for specifics. When a new InterWorx version is being finalized, making sure the new version works on all supported distros is more of a priority for the developers than adding new distro support.