Phantom Blade Zero reportedly has a roughly 5 GB day-one patch and Nvidia driver warning

Wccftech quotes a translated message attributed to S-Game director and producer Soulframe Liang describing an approximately 5 GB Phantom Blade Zero patch that can improve ray tracing and path tracing and fix bugs. Players who preloaded can download it separately; fresh downloads should include it. Liang warns that Nvidia driver 621.01 is unstable in certain situations, offering version 617.42 or a future driver update as alternatives.