Sourced from pypa/cibuildwheel's releases.

v3.1.2

• ⚠️ Add an error if CIBW_FREE_THREADING_SUPPORT is set; you are likely missing 3.13t wheels, please use the enable/CIBW_ENABLE (#2520)
• 🛠 riscv64 now enabled if you target that architecture, it's now supported on PyPI (#2509)
• 🛠 Add warning when using cpython-experimental-riscv64 (no longer needed) (#2526, #2528)
• 🛠 iOS versions bumped, fixing issues with 3.14 (now RC 1) (#2530)
• 🐛 Fix bug in Android running wheel from our GitHub Action (#2517)
• 🐛 Fix warning when using test-skip of "*-macosx_universal2:arm64" (#2522)
• 🐛 Fix incorrect number of wheels reported in logs, again (#2517)
• 📚 We welcome our Android platform maintainer (#2516)

v3.1.1

• 🐛 Fix a bug showing an incorrect wheel count at the end of execution, and misrepresenting test-only runs in the GitHub Action summary (#2512)
• 📚 Docs fix (#2510)

v3.1.0

• 🌟 CPython 3.14 wheels are now built by default - without the "cpython-prerelease" enable set. It's time to build and upload these wheels to PyPI! This release includes CPython 3.14.0rc1, which is guaranteed to be ABI compatible with the final release. (#2507) Free-threading is no longer experimental in 3.14, so you have to skip it explicitly with 'cp31?t-*' if you don't support it yet. (#2503)
• 🌟 Adds the ability to build wheels for Android! Set the platform option to android on Linux or macOS to try it out! (#2349)
• 🌟 Adds Pyodide 0.28, which builds 3.13 wheels (#2487)
• ✨ Support for 32-bit manylinux_2_28 (now a consistent default) and manylinux_2_34 added (#2500)
• 🛠 Improved summary, will also use markdown summary output on GHA (#2469)
• 🛠 The riscv64 images now have a working default (as they are now part of pypy/manylinux), but are still experimental (and behind an enable) since you can't push them to PyPI yet (#2506)
• 🛠 Fixed a typo in the 3.9 MUSL riscv64 identifier (cp39-musllinux_ricv64 -> cp39-musllinux_riscv64) (#2490)
• 🛠 Mistyping --only now shows the correct possibilities, and even suggests near matches on Python 3.14+ (#2499)
• 🛠 Only support one output from the repair step on linux like other platforms; auditwheel fixed this over four years ago! (#2478)
• 🛠 We now use pattern matching extensively (#2434)
• 📚 We now have platform maintainers for our special platforms and interpreters! (#2481)

v3.0.1

• 🛠 Updates CPython 3.14 prerelease to 3.14.0b3 (#2471)
• ✨ Adds a CPython 3.14 prerelease iOS build (only when prerelease builds are enabled) (#2475)

v3.0.0

See @​henryiii's release post for more info on new features!

• 🌟 Adds the ability to build wheels for iOS! Set the platform option to ios on a Mac with the iOS toolchain to try it out! (#2286, #2363, #2432)

• 🌟 Adds support for the GraalPy interpreter! Enable for your project using the enable option. (#1538, #2411, #2414)

• ✨ Adds CPython 3.14 support, under the enable option cpython-prerelease. This version of cibuildwheel uses 3.14.0b2. (#2390)

  While CPython is in beta, the ABI can change, so your wheels might not be compatible with the final release. For this reason, we don't recommend distributing wheels until RC1, at which point 3.14 will be available in cibuildwheel without the flag. (#2390)

• ✨ Adds the test-sources option, and changes the working directory for tests. (#2062, #2284, #2437)

  • If this option is set, cibuildwheel will copy the files and folders specified in test-sources into the temporary directory we run from. This is required for iOS builds, but also useful for other platforms, as it allows you to avoid placeholders.
  • If this option is not set, behaviour matches v2.x - cibuildwheel will run the tests from a temporary directory, and you can use the {project} placeholder in the test-command to refer to the project directory. (#2420)

• ✨ Adds dependency-versions inline syntax (#2122)

• ✨ Improves support for Pyodide builds and adds the experimental pyodide-version option, which allows you to specify the version of Pyodide to use for builds. (#2002)

• ✨ Add pyodide-prerelease enable option, with an early build of 0.28 (Python 3.13). (#2431)

• ✨ Adds the test-environment option, which allows you to set environment variables for the test command. (#2388)

• ✨ Adds the xbuild-tools option, which allows you to specify tools safe for cross-compilation. Currently only used on iOS; will be useful for Android in the future. (#2317)

• 🛠 The default manylinux image has changed from manylinux2014 to manylinux_2_28. (#2330)

... (truncated)

Sourced from pypa/cibuildwheel's changelog.

v3.1.2

29 July 2025

• ⚠️ Add an error if CIBW_FREE_THREADING_SUPPORT is set; you are likely missing 3.13t wheels, please use the enable/CIBW_ENABLE (#2520)
• 🛠 riscv64 now enabled if you target that architecture, it's now supported on PyPI (#2509)
• 🛠 Add warning when using cpython-experimental-riscv64 (no longer needed) (#2526, #2528)
• 🛠 iOS versions bumped, fixing issues with 3.14 (now RC 1) (#2530)
• 🐛 Fix bug in Android running wheel from our GitHub Action (#2517)
• 🐛 Fix warning when using test-skip of "*-macosx_universal2:arm64" (#2522)
• 🐛 Fix incorrect number of wheels reported in logs, again (#2517)
• 📚 We welcome our Android platform maintainer (#2516)

v3.1.1

24 July 2025

• 🐛 Fix a bug showing an incorrect wheel count at the end of execution, and misrepresenting test-only runs in the GitHub Action summary (#2512)
• 📚 Docs fix (#2510)

v3.1.0

23 July 2025

• 🌟 CPython 3.14 wheels are now built by default - without the "cpython-prerelease" enable set. It's time to build and upload these wheels to PyPI! This release includes CPython 3.14.0rc1, which is guaranteed to be ABI compatible with the final release. (#2507) Free-threading is no longer experimental in 3.14, so you have to skip it explicitly with 'cp31?t-*' if you don't support it yet. (#2503)
• 🌟 Adds the ability to build wheels for Android! Set the platform option to android on Linux or macOS to try it out! (#2349)
• 🌟 Adds Pyodide 0.28, which builds 3.13 wheels (#2487)
• ✨ Support for 32-bit manylinux_2_28 (now a consistent default) and manylinux_2_34 added (#2500)
• 🛠 Improved summary, will also use markdown summary output on GHA (#2469)
• 🛠 The riscv64 images now have a working default (as they are now part of pypy/manylinux), but are still experimental (and behind an enable) since you can't push them to PyPI yet (#2506)
• 🛠 Fixed a typo in the 3.9 MUSL riscv64 identifier (cp39-musllinux_ricv64 -> cp39-musllinux_riscv64) (#2490)
• 🛠 Mistyping --only now shows the correct possibilities, and even suggests near matches on Python 3.14+ (#2499)
• 🛠 Only support one output from the repair step on linux like other platforms; auditwheel fixed this over four years ago! (#2478)
• 🛠 We now use pattern matching extensively (#2434)
• 📚 We now have platform maintainers for our special platforms and interpreters! (#2481)

v3.0.1

5 July 2025

• 🛠 Updates CPython 3.14 prerelease to 3.14.0b3 (#2471)
• ✨ Adds a CPython 3.14 prerelease iOS build (only when prerelease builds are enabled) (#2475)

v3.0.0

11 June 2025

... (truncated)

• 9e4e50b Bump version: v3.1.2
• 8ef9414 [pre-commit.ci] pre-commit autoupdate (#2532)
• 1953c04 Adding @​mhsmith as platform maintainer for Android (#2516)
• 46a6d27 Bump iOS support package versions. (#2530)
• 0dc0b48 [Bot] Update dependencies (#2529)
• b887417 fix: enable all shall not enable cpython-experimental-riscv64 (#2528)
• 36c5079 tests: reduce testing time on iOS (#2523)
• 68c0366 feat: add deprecation warning for cpython-experimental-riscv64 enable (#2526)
• 1c38fac fix: invalid warning on test-skip = ["*-macosx_universal2:arm64"] (#2522)
• 140bc1a tests: mark and add skips (#2524)
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