[Cython] Release candidate for 0.26.1

[Stefan Behnel]

Hi all,

I've tagged a release candidate for the 0.26.1 bug fix release. Please give
it some final testing.

https://github.com/cython/cython/archive/0.26.1rc1.tar.gz

Here is the changelog:

https://github.com/cython/cython/blob/0.26.1rc1/CHANGES.rst

Stefan