gpioneer90 It's mentioned in the package changelog because we ship the modaliases as a separate sub-package that doesn't require the proprietary drivers themselves, which allow the hardware driver tool to be able to determine what driver it should install.
Mode-setting for the 30 series just landed in 5.11-rc4 per https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.11-rc4-Released. We're on 5.10.12. Any support in other operating systems is the likely the result of them shipping the proprietary driver, which is 1) going to force enable NVIDIA in optimus scenarios 2) be a legal gray area 3) introduce potential regressions for NVIDIA hardware and fallbacks to nouveau.
We did not advertise 30-series support in the announcement because it really doesn't exist yet.
So are nVidia series 3xxx users officially left without being able to install/use Solus until the next release?
That is correct. We didn't advertise said support, it shouldn't be expected at that point. Not our fault NVIDIA has taken as long as they have to get mode-setting into the kernel, they could've done it before 5.10.
