The June 2010 version of the Catalyst diplay drivers is there, at least a beta one.
You can download Cat 10.6 HERE.
Catalyst 10.6 supports OpenGL 4.0 and exposes 201 OpenGL extensions for a Radeon HD 5870 (previous OpenGL 4.0 versions like the 10.5 or 10.3 have 200 extensions for a HD 5870).
The new extension is: GL_AMD_transform_feedback3_lines_triangles.
I just received an update from AMD about this new OpenGL 4.0 extension. Here is the spec overview of GL_AMD_transform_feedback3_lines_triangles:
OpenGL 4.0 introduced the ability to record primitives into multiple output streams using transform feedback. However, the restriction that all streams must output POINT primitives when more than one output stream is active was also introduced. This extension simply removes that restriction, allowing the same set of primitives to be used with multiple transform feedback streams as with a single stream.
The official spec will be online shortly. This extension works with Radeon HD 5000 series and up (HD 6000…).
Other useful information from GPU Caps Viewer:
– Drivers Version: 8.740.0.0 – Catalyst 10.6 (5-17-2010) – atig6pxx.dll
– ATI Catalyst Release Version String: 8.74-100517a-100911E-ATI
– OpenGL Version: 4.0.9896 Compatibility Profile Context
– GLSL (OpenGL Shading Language) Version: 4.00
The complete list of the 201 extensions (HD 5870 + Win7 64-bit):
More details about these extensions can be found HERE
Geeks3D’s OpenGL extensions database can be found HERE.