An update for Cyberpunk 2077 is out on PC. It adds support for NVIDIA DLSS 3 and NVIDIA Reflex on compatible hardware. The update won't change the game version (1.61).
More information about DLSS can be found in this support article.
Note: If you're using GOG GALAXY, please make sure to also update the app. If the app is not up to date, the game will still work correctly but the GOG GALAXY Overlay will not run.