How come the big popular kernels are even numbered minor releases? Kernel 2.0, 2.2, 2.4, and 2.6 are the only ones used. Why don't (or didn't) distros ship with 2.1, 2.3, and 2.5 kernels? I checked debian, redhat, suse, and mandrake (with distrowatch.com) and all previous versions had the even kernels only. Thanks! -Steven