"195.62 shipping with an out-of-date version of the ICD"

[_Big_Mac]

Release notes of AMD’s new OpenCL SDK (http://developer.amd.com/gpu/ATIStreamSDK/assets/ATI_Stream_SDK_Release_Notes_Developer.pdf):

The NVIDIA 195.62 driver appears to be shipping with an out-of-date version of the ICD. As a result, the up-to-date ICD that ships with the ATI Stream SDK v2.0 may not recognize NVIDIA OpenCL DLLs. Until NVIDIA updates their drivers to correct this problem, you may encounter issues on systems with both AMD and NVIDIA OpenCL libraries installed. The recommended work-around is to remove the NVIDIA driver until NVIDIA updates their drivers to correct this problem.

What does “an out-of-date version of the ICD” actually mean?

Does this mean that vendors will now one-up each other with each new driver release by making the other’s driver out-of-date and thus unusable? Is it a one-time situation or does OpenCL require all implementations to be of the exact same ICD “version”? And it’s apparently not about OpenCL version, NVIDIA is compatible with the newest one (Revision: 9283 from 14 Oct 2009).