As discussed with Jason, importlib.metadata will be made non-provisional in 3.10. I have a PR in the works for this.

Thanks Barry for filing this. I was planning to do it but happy for you to beat me to it. I had one question I'd been meaning to ask - with this change, can the code paths that were deprecated in 3.10 be removed in 3.11 (SelectableGroups and cast to dict of sequence of EntryPoint objects)? I was planning a slightly accelerated removal of the compatibility support because: (a) The backport presented the deprecation for older Pythons already and so users will likely have migrated off the deprecated behaviors prior to the release of 3.10. (b) It will be substantially harder to maintain the backport while the backport drops that support. (c) In extreme cases, the backport is available to provide backward compatibility even for Python 3.11. Let me know if you would rather I pose this question elsewhere or elaborate on the proposition. It doesn't affect the PR or move out of provisional.

 New changeset f6954cdfc50060a54318fb2aea4d80408381243a by Barry Warsaw in branch 'main': bpo-44613: Make importlib.metadata non-provisional (#27101) https://github.com/python/cpython/commit/f6954cdfc50060a54318fb2aea4d80408381243a 

 New changeset 7223ce3b3f50ec8a825e317437ea0359b6ad6856 by Miss Islington (bot) in branch '3.10': bpo-44613: Make importlib.metadata non-provisional (GH-27101) (#27106) https://github.com/python/cpython/commit/7223ce3b3f50ec8a825e317437ea0359b6ad6856 

Jason, I think the question you raise re: accelerated deprecation, is probably a RM or SC question. I'll nosy in Pablo and see if he has a strong opinion.