PyPy3.7-v7.3.8 broke binary compatibility

matti picus <[email protected]> Thu, 24 Feb 2022 14:35:12 +0200

Newsgroups	gmane.comp.python.pypy
Message-ID	<CAO8bCgghEVCmOjtFGM_6=REsCdRbWeLLGQjAF7OAQ9XoNUmvFw@mail.gmail.com>

Once again, I broke ABI compatibility with the new release. I re-added
a field to PyDateTime_CAPI that should have been part of the original
PyPy3.7 release, but was missed, and so should be left out of PyPy3.7
v7.3.x. This causes segfaults when using PyPy3.7-v7.3.8 on wheels
built for PyPy3.7-v7.3.7 and older. Please do not build packages with
PyPy3.7-v7.3.8 for general release because they will not work on older
PyPy3.7.

What is doubly annoying is this is exactly why I needed to release
v7.3.7 over v7.3.6. PRs welcome to suggest a test for this. A "hg
diff" is a start, but it picks up refactoring and valid additions as
well, so it needs to be a bit smarter. Maybe something with CFFI?

Matti