[issue42380] Build windows binaries with MS VS2019 16.8+ / MSVC 19.28+

[h-vetinari]

h-vetinari <h.vetinari at gmx.com> added the comment:

Hey Terry

I had asked about this on discuss (https://discuss.python.org/t/toolchain-upgrade-on-windows/6377/2), and Steve provided some very valuable input.

In particular, building with the newer VS (that supports C11) should stay ABI-compatible with everything that has been built on Visual Studio 2015, 2017 and 2019:
> This is different from all previous Visual C++ versions, as they each had their own distinct runtime files, not shared with other versions.

(from https://docs.microsoft.com/en-gb/cpp/windows/universal-crt-deployment?view=msvc-160&viewFallbackFrom=vs-2019), due to the way the (now-)universal runtime is designed.

Thanks

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