Cg 1.5 Beta 2
http://developer.nvidia.com/object/cg-toolkit-15beta2.html
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Introduction
The Cg Toolkit provides a compiler for the Cg language, runtime libraries for use with both leading graphics APIs, runtime libraries for CgFX, example applications, and extensive documentation. Supporting over 24 different OpenGL and DirectX profile targets, Cg will allow you to incorporate stunning interactive effects into your 3D applications. The components include:
• NVIDIA Cg Compiler Release 1.5 Beta 2
• Unified Cg/CgFX Runtime
• Cg User's Manual
• Cg Language Specification
We hope that you will enjoy the exciting world of Cg programming.