The OpenGL 3.0 and GLSL 1.30 specification were released back
in August during SIGGRAPH 2008. Just days later NVIDIA had delivered a
beta driver for Windows that added OpenGL 3.0 functionality, but Linux,
FreeBSD, and Solaris users were left in the dark. Two months later
though NVIDIA has now published a beta Linux driver that implements most
of the latest GL/GLSL specification.