Catalyst 9.9 is not even out the door yet for Windows or Linux, but a beta release of Catalyst 9.10 can now be found in the Ubuntu 9.10 repository. More here

Most notably, this ATI driver update carries support for the Linux 2.6.31 kernel. A thread talking about AMD Catalyst 9.10 dropped in Ubuntu 9.10 can be found in our forums. Besides the new kernel support, it’s also reported that this driver update has some bug fixes, improved suspend-and-resume support, and improved Composite support, but the X-Video support does appear problematic.