_3 October 2023_
- 🛠 Updates CPython 3.12 version to 3.12.0, final release (1635)
- ✨ Adds a debug option [`CIBW_DEBUG_KEEP_CONTAINER`](https://cibuildwheel.pypa.io/en/stable/options/#cibw_debug_keep_container) to stop cibuildwheel deleting build containers after the build finishes. (1620)
- 📚 Adds support for `[tool.cibuildwheel]` checking by adding a schema compatible with the [validate-pyproject](https://github.com/abravalheri/validate-pyproject/) tool (#1622, 1628, 1629)
- 🐛 Fix parsing of `CIBW_CONTAINER_ENGINE` and `CIBW_BUILD_FRONTEND` options to not break arguments on `:` characters (1621)
- 🐛 Fix the evaluation order of `CIBW_ENVIRONMENT` and `CIBW_ENVIRONMENT_PASS` so that `CIBW_ENVIRONMENT` assignments can reference environment variables passed through from the host machine. (1617)
- 🛠 Supports manylinux images' deferred installation of interpreters through the `manylinux-interpreters` tool (1630)