The NVIDIA GeForce driver (ForceWare) v182.06 for GeForce video cards has been released, it includes PhysX System Software v9.09.0203. Get it here.

Some of NVIDIA's listed improvements for this version:

• Recommended for the best experience in F.E.A.R. 2: Project Origin.
• Boosts performance in several 3D applications. The following are examples of improvements measured with Release 182.06 WHQL drivers vs. Release 181.22 WHQL drivers (results will vary depending on your GPU, system configuration, and game settings):
  • Up to 8% performance increase in Fallout 3 at high resolution and AA.
  • Up to 10% performance increase in F.E.A.R. 2: Project Origin.
  • Up to 9% performance increase in Half-Life 2 at high resolution with AA.
  • Up to 11% performance increase in Left 4 Dead at high resolution with AA.
  • Up to 10% performance increase in Race Driver: GRID at high resolution and AA.
• Includes full support for OpenGL 3.0 on GeForce 8-series, 9-series, and 200-series GPUs.
• Bug fixes can be found in the release documentation notes.