Two pieces of feedback on this. One, nose is a bad example because that project has been telling people for years to switch to nose2 so the fact that people have still not switched something that should mostly be a direct swap after years of being asked to does not motivate in wanting to postpone one more year for that project's benefit. ;) (And where did you get the download stats on libraries.io? https://libraries.io/pypi/nose doesn't show any download counts.) Two, you buried the list of things you would like to revert and postpone to Python 3.10. :) Was this copied-and-pasted from somewhere, hence why you explain to us how to use `-X dev`? Basically it isn't easy to discuss the things you want to revert here, especially since you grouped them all together. Are you planning to start separate conversations on the (I think) 5 things you want to change?