According to the release notes, the biggest update with the new Geforce 552.44 WHQL driver is the support for the new Ghost of Tsushima: Director's Cut game, which launches on May 16th. The game will feature support for Nvidia DLSS 3, Reflex, and DLAA. The driver also adds optimizations for the Homeworld 3 game, launching a few days earlier, on May 13th. Unlike Ghost of Tsushima, Homeworld 3 will only support Nvidia DLSS 2.
The new Geforce 552.44 WHQL driver also adds new Geforce Experience settings for several games, including Content Warning, Gray Zone Warfare, Manor Lords, No Rest for the Wicked, and Outpost: Infinity Siege, and brings a single bug fix, which is a new Resizable BAR profile for the Ghost of Tsushima: Director's Cut game.
As always, you can download the latest Nvidia Geforce driver and find full release notes over at Geforce.com.