At least we know for sure that it's backwards compatible with the old Switch.

klausa · on Jan 16, 2025

This has been announced back in November: https://x.com/NintendoCoLtd/status/1853972163033968794; though if you're not extremely plugged in, it has been rather easy to miss.

jacobgkau · on Jan 17, 2025

There was still some ambiguity on if it applied to physical games or only downloads. I'm all-digital on my Switch, so it doesn't affect me, but it'll be nice for the physical-only people to know with certainty.