v2.3.0

• 📈 cibuildwheel now defaults to manylinux2014 image for linux builds, rather than manylinux2010. If you want to stick with manylinux2010, it's simple to set this using the image options. (#926)
• ✨ You can now pass environment variables from the host machine into the Docker container during a Linux build. Check out the docs for CIBW_ENVIRONMENT_PASS_LINUX for the details. (#914)
• ✨ Added support for building PyPy 3.8 wheels. (#881)
• ✨ Added support for building Windows arm64 CPython wheels on a Windows arm64 runner. We can't test this in CI yet, so for now, this is experimental. (#920)
• 📚 Improved the deployment documentation (#911)
• 🛠 Changed the escaping behaviour inside cibuildwheel's option placeholders e.g. {project} in before_build or {dest_dir} in repair_wheel_command. This allows bash syntax like ${SOME_VAR} to passthrough without being interpreted as a placeholder by cibuildwheel. See this section in the docs for more info. (#889)
• 🛠 Pip updated to 21.3, meaning it now defaults to in-tree builds again. If this causes an issue with your project, setting environment variable PIP_USE_DEPRECATED=out-of-tree-build is available as a temporary flag to restore the old behaviour. However, be aware that this flag will probably be removed soon. (#881)
• 🐛 You can now access the current Python interpreter using python3 within a build on Windows (#917)