Scientific Linux uses upstream source to create their own repo, without desire to be 100% compatible. CentOS project is dedicated to provide (as close as possible) 100% compatibility. It's not just a rebuild of upstream sources, goal is tu *duplicate* RHEL. It's that simple. And this was answer many times in this and other mailing lists, forum threads.... Ljubomir carlopmart wrote: > Hi all, > > Please, first of all, I don't want to start a flame about this > subject. I only wnat to know CentOS's developers point of view about > this particular. > > Due to the delays that occurs in the release of new CentOS's versions > and patches, and because CentOS developers involved in these tasks may > not have sufficient time to devote to it (and also make if freely and > spending their time), and I think that has been much talk about the whys > for users and developers: > > - Why not a distribution fusion between Scientific Linux and CentOS? > > - Why not join efforts in the development of a single Enterprise Linux > solid distribution based on RHEL? > > I repeat: I only want to know your point of view. > > Thanks. >