According to the release notes, a couple of the biggest fixes are focused on stuttering, something that Nvidia already highlighted in its earlier hotfix driver. These fixes include micro-stuttering in some games when vertical sync is enabled, stuttering issues in Red Dead Redemption on Advanced Optimus notebooks, stuttering in Immortals of Aveum game, and even stuttering while scrolling in web browsers on certain system configurations.
As always, you can download the latest Nvidia Geforce driver and find full release notes over at Geforce.com.