> i have two questions related to this. first, regarding just running > "yum update" to stay on top of things, even across test releases, what > happens if there was a version of some package in "development" that > turned out to be badly broken, and the decision was made to back off > to an earlier version for the next test release? does this happen? > if so, then just running "yum update" instead of reinstalling from > scratch would leave you with a system that, for that package, was > erroneously ahead of the curve. or is this not an issue? upgrading from stable to beta and beta to stable again is not supported and never has been. You can use yum to go in that direction but there is no explicit support for that process. > and, second, if one installs FC4t3 and is happy with it, can one just > leave it there across the official FC4 release and expect it to be > reasonably consistent with FC4 given regular "yum update"s? and, for > the sake of access to yum repos, should one hack such a system to fake > that it's officially FC4? no, As above. Stable->beta beta->stable are not supported update paths. -sv