A beta version of the upcoming Catalyst 9.10, signed MSI, can be downloaded from HERE. This version string of this driver is: 8.66-090914a-088589E-MSI (9-14-2009). This driver should support new Radeon HD 5870. There are still 158 (or 159) OpenGL extensions like in Catalyst 9.9.
Here are GPU Caps Viewer screenshots:
[via]
There isa mistake in the INF files for all editions.
reporting as Cat 9.0 instead of 9.10
change the following line under the correct INF for your system.
[ati2mtag_SoftwareDeviceSettings]
…
…
…
HKR,, Catalyst_Version,,”09.10″ (this is what it should be, not ‘9.0’
…
…
etc
There is now a yet newer beta (?) at:
http://www.rage3d.com/board/showthread.php?t=33953249