5th December 2025
TIL
Subtests in pytest 9.0.0+
— [pytest 9.0.0](https://pypi.org/project/pytest/9.0.0/) was released on November 8th 2025. I just got around to looking at the [release notes](https://docs.pytest.org/en/stable/changelog.html#pytest-9-0-0-2025-11-05) and the biggest new feature is **subtests**, previously available as the separate [pytest-subtests](https://pypi.org/project/pytest-subtests/) plugin.
Recent articles
- Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026
- I think Anthropic and OpenAI have found product-market fit - 27th May 2026
- Notes on Pope Leo XIV's encyclical on AI - 25th May 2026