News Cyberpunk 2077 2.21 patch adds DLSS 4 support days before RTX 50 series debut

I tried it out, and the improvement is quite visible.
The comment around 'there's a performance impact' is not looking at it in the right way:

The DLSS 4 visuals are so much improved that I'm now happy to run it at 'performance' mode, whereas before I'd limit to 'balanced'. Any performance degradation is far outstripped by the improvement in quality.