Python 3.10 is [end-of-life](https://devguide.python.org/versions/) in October 2026 (2026-10): [PEP 619](https://peps.python.org/pep-0619/). We should drop `cf` support at that time.
Python 3.10 is end-of-life in October 2026 (2026-10): PEP 619.
We should drop
cfsupport at that time.