> I guess that depends on your expectations. Sun claims > to run binaries from Solaris 8 on Solaris 10. Are they > using black magic or just doing things right? It comes down to policy as well, not just expectations :) Solaris is developed as a "stable" platform - I don't use SUN so don't know the details, but I presume somewhere in their small print they must state they policy w.r.t. to backwards compatibility etc. FC is (IMHO) completely different. It is a community platform, which aims to be at the development edge. Consequently, whilst backwards compatibility is maintained as much as it can be sometimes things break. Also, given the 6-8 month or so turn around in releases, FC5 is going to be "legacy" in 12-18 months, at which point support starts to dwindle. If you need a rock solid production platform, with long term support, don't use FC but look say RedHat EL. Chris
