Sourced from pypa/cibuildwheel's releases.

Version 2.20.0

• 🌟 CPython 3.13 wheels are now built by default - without the CIBW_PRERELEASE_PYTHONS flag. It's time to build and upload these wheels to PyPI! This release includes CPython 3.13.0rc1, which is guaranteed to be ABI compatible with the final release. Free-threading is still behind a flag/config option. (#1950)
• ✨ Provide a CIBW_ALLOW_EMPTY environment variable as an alternative to the command line flag. (#1937)
• 🐛 Don't use uv on PyPy3.8 on Windows, it stopped working starting in 0.2.25. Note that PyPy 3.8 is EoL. (#1868)
• 🛠 Set the VSCMD_ARG_TGT_ARCH variable based on target arch. (#1876)
• 🛠 Undo cleaner output on pytest 8-8.2 now that 8.3 is out. (#1943)
• 📚 Update examples to use Python 3.12 on host (cibuildwheel will require Python 3.11+ on the host machine starting in October 2024) (#1919)

Version 2.19.2

• 🐛 Update manylinux2014 pins to versions that support past-EoL CentOS 7 mirrors. (#1917)
• 🐛 Support --no-isolation with build[uv] build-frontend. (#1889)
• 🛠 Provide attestations for releases at https://github.com/pypa/cibuildwheel/attestations. (#1916)
• 🛠 Provide CPython 3.13.0b3. (#1913)
• 🛠 Remove some workarounds now that pip 24.1 is available. (#1891, #1892)
• 📚 Remove nosetest from our docs. (#1821)
• 📚 Document the macOS ARM workaround for 3.8 on GHA. (#1871)
• 📚 GitLab CI + macOS is now a supported platform with an example. (#1911)

Version 2.19.1

• 🐛 Don't require setup-python on GHA for Pyodide (#1868)
• 🐛 Specify full python path for uv (fixes issue in 0.2.10 & 0.2.11) (#1881)
• 🛠 Update for pip 24.1b2 on CPython 3.13. (#1879)
• 🛠 Fix a warning in our schema generation script. (#1866)
• 🛠 Cleaner output on pytest 8-8.2. (#1865)

Version 2.19.0

Release post: https://iscinumpy.dev/post/cibuildwheel-2-19-0/

• 🌟 Add a Pyodide platform. Set with --platform pyodide or CIBW_PLATFORM: pyodide on Linux with a host Python 3.12 to build WebAssembly wheels. Not accepted on PyPI currently, but usable directly in a website using Pyodide, for live docs, etc. (#1456, #1859)
• 🌟 Add build[uv] backend, which will take a pre-existing uv install (or install cibuildwheel[uv]) and use uv for all environment setup and installs on Python 3.8+. This is significantly faster in most cases. (#1856)
• ✨ Add free-threaded macOS builds and update CPython to 3.13.0b2. (#1854)
• 🐛 Issue copying a wheel to a non-existent output dir fixed. (#1851, #1862)
• 🐛 Better determinism for the test environment seeding. (#1835)
• 🛠 VIRTUAL_ENV variable now set. (#1842)
• 🛠 Remove a pip<21.3 workaround. (#1842)
• 🛠 Error handling was refactored to use exceptions. (#1719)
• 🛠 Hardcoded paths in tests avoided. (#1834)
• 🛠 Single Python tests made more generic. (#1835)
• 🛠 Sped up our ci by splitting up emulation tests. (#1839)

v2.18.1

• 🌟 Add free-threaded Linux and Windows builds for 3.13. New identifiers cp313t-*, new option CIBW_FREE_THREADED_SUPPORT/tool.cibuildwheel.free-threaded-support required to opt-in. See the docs for more information. (#1831)
• ✨ The container-engine is now a build (non-global) option. (#1792)
• 🛠 The build backend for cibuildwheel is now hatchling. (#1297)
• 🛠 Significant improvements and modernization to our noxfile. (#1823)
• 🛠 Use pylint's new GitHub Actions reporter instead of a custom matcher. (#1823)
• 🛠 Unpin virtualenv updates for Python 3.7+ (#1830)
• 🐛 Fix running linux tests from Windows or macOS ARM. (#1788)
• 📚 Fix our documentation build. (#1821)

... (truncated)

Sourced from pypa/cibuildwheel's changelog.

v2.20.0

• 🌟 CPython 3.13 wheels are now built by default - without the CIBW_PRERELEASE_PYTHONS flag. It's time to build and upload these wheels to PyPI! This release includes CPython 3.13.0rc1, which is guaranteed to be ABI compatible with the final release. Free-threading is still behind a flag/config option. (#1950)
• ✨ Provide a CIBW_ALLOW_EMPTY environment variable as an alternative to the command line flag. (#1937)
• 🐛 Don't use uv on PyPy3.8 on Windows, it stopped working starting in 0.2.25. Note that PyPy 3.8 is EoL. (#1868)
• 🛠 Set the VSCMD_ARG_TGT_ARCH variable based on target arch. (#1876)
• 🛠 Undo cleaner output on pytest 8-8.2 now that 8.3 is out. (#1943)
• 📚 Update examples to use Python 3.12 on host (cibuildwheel will require Python 3.11+ on the host machine starting in October 2024) (#1919)

v2.19.2

• 🐛 Update manylinux2014 pins to versions that support past-EoL CentOS 7 mirrors. (#1917)
• 🐛 Support --no-isolation with build[uv] build-frontend. (#1889)
• 🛠 Provide attestations for releases at https://github.com/pypa/cibuildwheel/attestations. (#1916)
• 🛠 Provide CPython 3.13.0b3. (#1913)
• 🛠 Remove some workarounds now that pip 21.1 is available. (#1891, #1892)
• 📚 Remove nosetest from our docs. (#1821)
• 📚 Document the macOS ARM workaround for 3.8 on GHA. (#1871)
• 📚 GitLab CI + macOS is now a supported platform with an example. (#1911)

v2.19.1

• 🐛 Don't require setup-python on GHA for Pyodide (#1868)
• 🐛 Specify full python path for uv (fixes issue in 0.2.10 & 0.2.11) (#1881)
• 🛠 Update for pip 24.1b2 on CPython 3.13. (#1879)
• 🛠 Fix a warning in our schema generation script. (#1866)
• 🛠 Cleaner output on pytest 8-8.2. (#1865)

v2.19.0

See the release post for more info on new features!

• 🌟 Add Pyodide platform. Set with --platform pyodide or CIBW_PLATFORM: pyodide on Linux with a host Python 3.12 to build WebAssembly wheels. Not accepted on PyPI currently, but usable directly in a website using Pyodide, for live docs, etc. (#1456, #1859)
• 🌟 Add build[uv] backend, which will take a pre-existing uv install (or install cibuildwheel[uv]) and use uv for all environment setup and installs on Python 3.8+. This is significantly faster in most cases. (#1856)
• ✨ Add free-threaded macOS builds and update CPython to 3.13.0b2. (#1854)
• 🐛 Issue copying a wheel to a non-existent output dir fixed. (#1851, #1862)
• 🐛 Better determinism for the test environment seeding. (#1835)
• 🛠 VIRTUAL_ENV variable now set. (#1842)
• 🛠 Remove a pip<21.3 workaround. (#1842)
• 🛠 Error handling was refactored to use exceptions. (#1719)
• 🛠 Hardcoded paths in tests avoided. (#1834)
• 🛠 Single Python tests made more generic. (#1835)
• 🛠 Sped up our ci by splitting up emulation tests. (#1839)

v2.18.1

... (truncated)

• bd033a4 Bump version: v2.20.0
• 9d023cf Build CPython 3.13 by default (#1950)
• 8a69dbd [Bot] Update dependencies (#1949)
• 147de6f [pre-commit.ci] pre-commit autoupdate (#1947)
• e217e44 [Bot] Update dependencies (#1946)
• 871ef6b tests: show xfail traceback summaries again (#1943)
• fac72f0 [pre-commit.ci] pre-commit autoupdate (#1944)
• d4c3321 feat: add CIBW_ALLOW_EMPTY environment variable (#1937)
• 5af5df4 [Bot] Update dependencies (#1935)
• 6c5cf87 docs: fix nox docs command (#1938)
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