Will mypy work universally again? Or is the list of supported platforms now more or less set in stone?

Documentation

ERROR: Could not find a version that satisfies the requirement librt>=0.10.0; platform_python_implementation != "PyPy" (from mypy) (from versions: 0.0.1)

Changelog has been less than on the nose on dropped platform support lately, so.. what is changed about that?

Mypy now has an extra dependency on the librt PyPI package

I believe in 1.19 librt became a hard dependency (ImportError) even though as of mypy 2.0.0 it still works without it (sans --incremental). (I created a stub librt/internal.py file; that was all I needed to be able to type check after upgrade, so I know it was not necessary.)

There are still some minor semantic differences between parallel and non-parallel modes, which we will be fixing in future mypy releases.

Relatedly, it looks like the more complex non-python dependency ast-serialize is also not strictly needed right now (other than for --native-parser), but current documentation does clarify whether that is just temporarily so (until parsers reach feature parity). Should users expect that some future mypy version will hard-depend on OpenAI-owned code?

Is there a point in either releasing a stub universal python wheel or try/excepting the optional features so mypy remains usable on platforms that cannot use either or both new non-python dependencies?
Or should the Changelog just enumerate positively what arch/platform list now remain, plus maybe an update to the Does it run on PyPy? section?

Prüfe zuerst den verknüpften Changelog-Eintrag und den Dokumentationsabschnitt „Does it run on PyPy?“ sowie die aktuellen Hinweise zu librt und ast-serialize. Als erledigt gilt, dass dokumentiert ist, welche Plattformen unterstützt werden und ob diese Abhängigkeiten optional oder erforderlich sind, einschließlich einer gegebenenfalls notwendigen Klarstellung im Changelog.