http://www.nvidia.com/object/linux_display_ia32_1.0-6106.html

Release Highlights

Added support for GeForce 6800 series of GPUs
Added support for PCI-Express
Added support for GLSL (OpenGL Shading Language).
Added support for GL_EXT_pixel_buffer_object.
Fixed problem that prevented 32-bit kernel driver from running on certain AMD64 CPUs.
Added support for ACPI
 Added support for 4kstack kernels.
 Added configuration utility "nvidia-settings".  For details, see the user guide
Added a shell script "nvidia-bug-report.sh" that gathers system configuration information into a log file; the resulting log file (nvidia-bug-report.log) should be included when reporting bugs to NVIDIA.
Added a new Xv adaptor on GeForce4 and GeForce FX which uses the 3D engine to do Xv PutImage requests.
View the README (Text Version) for more information on this release.