Debian kernel Downaloads

Debian 3.0 Woody
Kernle 2.4
http://www.debian.org/releases/woody/

Debian 3.1 Sage
Kernel: 2.4
http://www.debian.org/releases/sarge/debian-installer/

Debian 4.0 Etch
Kernle 2.6.18
http://www.debian.org/releases/etch/

Debian 5.0 Lenny
Kernel
http://www.debian.org/releases/lenny/

Debian 6.0 squeeze
Kernel: 2.6.32
http://www.debian.org/releases/squeeze/

It looks like Debian does not change too much kernel from mainline kernel.
While CentOS changes a lot.