I see so many people praising the "no new feature as a feature" part, but hasn't semantic versioning already solved that problem? If you are on version 3.x.x of a library, why do you care if 4.x or 5.x or 6.x is launched, other than FOMO? Just keep using whatever version you want and let others have shiny new things.

There are so many sites out there using 4-5+ year old versions of React, and they all work perfectly fine. There's no compulsion to upgrade if you don't want to.