On behalf of the greenlet team, I would like to announce the release of greenlet 1.0a1.
This release is expected to be source and binary compatible with greenlet 0.4.17, the previous release. The exception is that legacy Python versions 2.4, 2.5, 2.6, 3.0, 3.1, 3.2 and 3.4 are no longer supported.
Highlights of this release include binary wheels for 64-bit Linux on Arm (aarch64), the ability to directly set the contextvars context of a greenlet, and numerous packaging changes intended to streamline development and releases while dropping dependencies on deprecated technologies like distutils. For details see https://greenlet.readthedocs.io/en/latest/changes.html
Although believed to be as stable as the previous release, this release is designated 'a1' because of the packaging changes; downstream distributors and packagers are especially encouraged to test this release.
Please test and report issues to https://github.com/python-greenlet/greenlet