http://www.linuxquestions.org – I am running Fedora 12 64-bit on a MacBookPro5,1 system. After two weeks of not running Fedora on the system, I boot into it and check for updates with Yum Extender. It only finds a small handful of updates despite the fact that my other system running Fedora 12 32-bit has installed several update over the past two weeks. (HowTos)