Gentoo Version Limitations

From cchtml.com

Here's a list of the currently rather annoying limitations of the Gentoo ati-drivers ebuilds. Will be updated as my experimenting goes along... Akhuettel

ebuild	driver version	x86	amd64	required kernel version	required X version
8.501	8.6	stable	testing	<= 2.6.25-gentoo-r7 OK, does not compile with 2.6.26-gentoo-r4	?
8.552-r2	8.11	testing	testing	?	>=x11-base/xorg-server-1.5