Bump version: v4.2.0

[Bot] Update dependencies (#2960 )
Update dependencies Co-authored-by: cibuildwheel-bot[bot] <83877280+cibuildwheel-bot[bot]@users.noreply.github.com>
2026-08-04 22:23:12 -04:00 · 2026-08-04 22:19:16 -04:00 · 2026-08-04 20:26:00 -04:00 · 2026-08-04 19:46:48 -04:00 · 2026-08-04 17:41:22 -04:00 · 2026-08-03 10:20:35 -04:00
55 changed files with 1325 additions and 1029 deletions
@@ -19,16 +19,16 @@ jobs:
      contents: read
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
-      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+      - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
        with:
          python-version: "3.x"
          allow-prereleases: true
-      - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+      - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
      - name: Install tooling
        run: |
@@ -13,7 +13,7 @@ jobs:
  dist:
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
@@ -41,6 +41,6 @@ jobs:
      with:
        subject-path: "dist/cibuildwheel-*"
-    - uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b # v1.14.0
+    - uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # v1.14.1
      with:
        attestations: true
@@ -34,19 +34,23 @@ concurrency:
  group: test-${{ github.ref }}
  cancel-in-progress: true
 env:
  # runners see short DNS/network outages; uv's default of 3 retries is too few
  UV_HTTP_RETRIES: "6"
 jobs:
  lint:
    name: Linters (mypy, ruff, etc.)
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      with:
        python-version: "3.x"
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
-    - uses: j178/prek-action@e98a699c41eb69ab013a45817a0406469a748f8d # v2.0.5
+    - uses: j178/prek-action@5337cb91e0fa35a7ff31b9ca345126d8bbbcdf16 # v2.0.6
    - name: PyLint checks
      run: uvx nox -s pylint -- --output-format=github
@@ -55,14 +59,14 @@ jobs:
    needs: lint
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      name: Install Python
      with:
        python-version: "3.x"
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
    - name: Install dependencies
      run: uv sync --no-dev --group test
    - name: Generate a sample project
@@ -117,16 +121,16 @@ jobs:
          test_select: android
    timeout-minutes: 180
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      name: Install Python ${{ matrix.python_version }}
      with:
        python-version: ${{ matrix.python_version }}
        allow-prereleases: true
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
    - name: Free up disk space
      if: runner.os == 'Linux' && matrix.test_select != 'android'
@@ -250,13 +254,13 @@ jobs:
    outputs:
      archs: ${{ steps.archs.outputs.archs }}
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      with:
        python-version: "3.x"
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
    - name: Install dependencies
      run: uv sync --no-dev --group test
    - name: Get qemu emulated architectures
@@ -275,13 +279,13 @@ jobs:
      matrix:
        arch: ${{ fromJSON(needs.emulated-archs.outputs.archs) }}
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      with:
        python-version: "3.x"
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
    - name: Install dependencies
      run: uv sync --no-dev --group test
@@ -299,14 +303,14 @@ jobs:
    runs-on: ubuntu-24.04
    timeout-minutes: 180
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      name: Install Python 3.12
      with:
        python-version: '3.12'
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
    - name: Install dependencies
      run: uv sync --no-dev --group test
@@ -324,13 +328,13 @@ jobs:
        output-dir: wheelhouse
      env:
        CIBW_PLATFORM: pyodide
-        CIBW_ENABLE: pyodide-prerelease
+        CIBW_ENABLE: cpython-prerelease
    - name: Run tests with 'CIBW_PLATFORM' set to 'pyodide'
      run: uv run --no-sync ./bin/run_tests.py
      env:
        CIBW_PLATFORM: pyodide
-        CIBW_ENABLE: pyodide-prerelease
+        CIBW_ENABLE: cpython-prerelease
  test-uv-extras:
    name: Test uv extra on ${{ matrix.os }} ${{ matrix.test_select }}
@@ -351,7 +355,7 @@ jobs:
        - os: macos-15
          test_select: android
    steps:
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
    - name: Download a sample project
@@ -37,11 +37,11 @@ jobs:
        permission-contents: write
        permission-pull-requests: write
-    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
-    - uses: astral-sh/setup-uv@11f9893b081a58869d3b5fccaea48c9e9e46f990 # v8.3.2
+    - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
      with:
        python-version: "3.14"
@@ -21,7 +21,7 @@ jobs:
    permissions:
      contents: write
    steps:
-      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
@@ -16,9 +16,9 @@ jobs:
      security-events: write
    steps:
      - name: Checkout repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Run zizmor 🌈
-        uses: zizmorcore/zizmor-action@192e21d79ab29983730a13d1382995c2307fbcaa # v0.5.7
+        uses: zizmorcore/zizmor-action@6fc4b006235f201fdab3722e17240ab420d580e5 # v0.6.1
@@ -122,3 +122,4 @@ site/
 # This file should be a symlink or contain "See @AGENTS.md"
 CLAUDE.md
 .claude/
@@ -22,25 +22,24 @@ What does it do?
 While cibuildwheel itself requires a recent Python version to run (we support the last three releases), it can target the following versions to build wheels:
-|                          | macOS Intel | macOS Apple Silicon | Windows 64bit | Windows 32bit | Windows Arm64  | manylinux<br/>musllinux x86_64 | manylinux<br/>musllinux i686 | manylinux<br/>musllinux aarch64 | manylinux<br/>musllinux ppc64le | manylinux<br/>musllinux s390x | manylinux<br/>musllinux armv7l | Android | iOS | Pyodide        |
+|                    | macOS Intel | macOS Apple Silicon | Windows 64bit | Windows 32bit | Windows Arm64  | manylinux<br/>musllinux x86_64 | manylinux<br/>musllinux i686 | manylinux<br/>musllinux aarch64 | manylinux<br/>musllinux ppc64le | manylinux<br/>musllinux s390x | manylinux<br/>musllinux armv7l | Android | iOS | Pyodide        |
-| ------------------------ | ----------- | ------------------- | ------------- | ------------- | -------------- | ------------------------------ | ---------------------------- | ------------------------------- | ------------------------------- | ----------------------------- | ------------------------------ | ------- | --- | -------------- |
+|--------------------| ----------- | ------------------- | ------------- | ------------- | -------------- | ------------------------------ | ---------------------------- | ------------------------------- | ------------------------------- | ----------------------------- | ------------------------------ | ------- | --- | -------------- |
-| CPython 3.9              | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
+| CPython 3.9        | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
-| CPython 3.10             | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
+| CPython 3.10       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
-| CPython 3.11             | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
+| CPython 3.11       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | N/A            |
-| CPython 3.12             | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | ✅<sup>3</sup> |
+| CPython 3.12       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | N/A     | N/A | ✅<sup>3</sup> |
-| CPython 3.13             | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | ✅             |
+| CPython 3.13       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | ✅             |
-| CPython 3.14             | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | ✅             |
+| CPython 3.14       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | ✅             |
-| CPython 3.15<sup>5</sup> | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | N/A            |
+| CPython 3.15       | ✅          | ✅                  | ✅            | ✅            | ✅<sup>2</sup> | ✅                             | ✅                           | ✅                              | ✅                              | ✅                            | ✅<sup>4</sup>                 | ✅      | ✅  | ✅             |
-| PyPy 3.9 v7.3            | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
+| PyPy 3.9 v7.3      | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
-| PyPy 3.10 v7.3           | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
+| PyPy 3.10 v7.3     | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
-| PyPy 3.11 v7.3           | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
+| PyPy 3.11 v7.3     | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | ✅<sup>1</sup>               | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
-| GraalPy 3.12 v25.0       | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | N/A                          | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
+| GraalPy 3.12 v25.0 | ✅          | ✅                  | ✅            | N/A           | N/A            | ✅<sup>1</sup>                 | N/A                          | ✅<sup>1</sup>                  | N/A                             | N/A                           | N/A                            | N/A     | N/A | N/A            |
 <sup>**1** PyPy & GraalPy are only supported for manylinux wheels.</sup><br>
 <sup>**2** Windows arm64 support is experimental.</sup><br>
 <sup>**3** Not supported on PyPI, uses old `pyodide` tag instead of `pyemscripten`. Requires `pyodide-eol` [`enable`](https://cibuildwheel.pypa.io/en/stable/options/#enable).</sup><br>
 <sup>**4** manylinux armv7l support is experimental. As there are no RHEL based image for this architecture, it's using an Ubuntu based image instead.</sup><br>
 <sup>**5** Python 3.15 requires opt-in using [`enable`](https://cibuildwheel.pypa.io/en/stable/options/#enable).</sup><br>
 - Builds manylinux, musllinux, macOS, Windows, pyemscripten, iOS, and Android wheels
 - Supports CPython, PyPy, and GraalPy
@@ -98,7 +97,7 @@ jobs:
      - uses: actions/setup-python@v6
      - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==4.1.1
+        run: python -m pip install cibuildwheel==4.2.0
      - name: Build wheels
        run: python -m cibuildwheel --output-dir wheelhouse
@@ -239,6 +238,20 @@ Changelog
 <!-- [[[cog from readme_changelog import mini_changelog; print(mini_changelog()) ]]] -->
 ### v4.2.0
 _4 August 2026_
 - 🌟 CPython 3.15 wheels are now built by default - without the `"cpython-prerelease"` [`enable`](https://cibuildwheel.pypa.io/en/stable/options/#enable) set. It's time to build and upload these wheels to PyPI! This release includes CPython 3.15.0rc1, which is guaranteed to be ABI compatible with the final release. (#2944)
 - ✨ Adds Pyodide 3.15 support with the `cp315-pyodide_wasm32` build identifier, using Pyodide 315.0.0a2. These are also stable wrt. the final release. (#2958)
 - 🐛 Retries a failed download six times with exponential backoff, so short network outages no longer stop a build. A `4xx` response is still reported at once. (#2953)
 - 🐛 Accepts `default` as a [`build-frontend`](https://cibuildwheel.pypa.io/en/stable/options/#build-frontend) value on Pyodide, and accepts `pyodide-build` in the top-level table and in overrides (#2951)
 - 🛠 Holds pip back on GraalPy, where newer pip breaks the build (#2955)
 - 🛠 Updates Pyodide to 314.0.4 (#2949, #2952)
 - 🛠 Updates dependencies and container pins (#2952, #2960)
 - 💼 Updates CI action pins (#2948, #2954)
 - 🧪 Uses pp311 for the abi3 test, and deletes `test_overridden_pip_constraint`, which is not necessary since #2583 (#2956, #2957)
 ### v4.1.1
 _24 July 2026_
@@ -338,19 +351,7 @@ _2 April 2026_
 - ✨ cibuildwheel prints the selected build identifiers at the start of the build. (#2785)
 - 🔐 The GitHub Action now references other actions with a full SHA (#2744)
-### v3.4.0
+<!-- [[[end]]] (sum: fEuiF50wvg) -->
 _5 March 2026_
 - 🌟 You can now build wheels using `uv` as a build frontend. This should improve performance, especially if your project has lots of build dependencies. To use, set [`build-frontend`](https://cibuildwheel.pypa.io/en/stable/options/#build-frontend) to `uv`. (#2322)
 - ⚠️ We no longer support running on Travis CI. It may continue working but we don't run tests there anymore so we can't be sure. (#2682)
 - ✨ Improvements to building rust wheels on Android (#2650)
 - 🛠 Update Pyodide to 0.29.3 (#2719, #2733)
 - 🐛 Fix bug with the GitHub Action on Windows, where PATH was getting unnecessarily changed, causing issues with meson builds. (#2723)
 - ✨ Add support for quiet setting on `build` and `uv` from the cibuildwheel `build-verbosity` setting. (#2737)
 - 📚 Docs updates, including guidance on using Meson on Windows (#2718)
 <!-- [[[end]]] (sum: kQUcUVgqfM) -->
 ---
@@ -28,7 +28,7 @@ branding:
 runs:
  using: composite
  steps:
-    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      id: python
      with:
        python-version: "3.11 - 3.14"
@@ -35,7 +35,7 @@ $defs:
      - pyodide-prerelease
      - pypy
      - pypy-eol
-  description: A Python version or flavor to enable.
+    description: A Python version or flavor to enable.
 additionalProperties: false
 description: cibuildwheel's settings.
 type: object
@@ -62,29 +62,7 @@ properties:
    default: ['*']
    description: Choose the Python versions to build.
    type: string_array
-  build-frontend:
+  build-frontend: {}  # filled in by build_frontend_schema below
    default: default
    description: Set the tool to use to build, either "build" (default), "build[uv]", "uv", or "pip"
    oneOf:
      - enum: [pip, build, "build[uv]", uv, default]
      - type: string
        pattern: '^pip; ?args:'
      - type: string
        pattern: '^build; ?args:'
      - type: string
        pattern: '^build\\[uv\\]; ?args:'
      - type: string
        pattern: '^uv; ?args:'
      - type: object
        additionalProperties: false
        required: [name]
        properties:
          name:
            enum: [pip, build, "build[uv]", uv]
          args:
            type: array
            items:
              type: string
  build-verbosity:
    type: integer
    minimum: -3
@@ -292,6 +270,43 @@ string_table = yaml.safe_load(
 """
 )
 FRONTENDS = ["pip", "build", "build[uv]", "uv"]
 def build_frontend_schema(
    names: list[str], description: str, default: str = "default"
 ) -> dict[str, Any]:
    """
    A frontend is a name, a "name; args: ..." string, or a table with a name and args.
    """
    # Only the brackets in "build[uv]" need escaping
    patterns = [name.replace("[", r"\[").replace("]", r"\]") for name in names]
    return {
        "default": default,
        "description": description,
        "oneOf": [
            {"enum": [*names, "default"]},
            *({"type": "string", "pattern": f"^{pattern}; ?args:"} for pattern in patterns),
            {
                "type": "object",
                "additionalProperties": False,
                "required": ["name"],
                "properties": {
                    "name": {"enum": names},
                    "args": {"type": "array", "items": {"type": "string"}},
                },
            },
        ],
        "title": "CIBW_BUILD_FRONTEND",
    }
 schema["properties"]["build-frontend"] = build_frontend_schema(
    [*FRONTENDS, "pyodide-build"],
    'Set the tool to use to build, either "build" (default), "build[uv]", "uv", or "pip"'
    ' ("pyodide-build" for pyodide)',
 )
 for value in schema["properties"].values():
    match value:
        case {"type": "string_array"}:
@@ -393,24 +408,20 @@ for os_name, command in [
 del oses["linux"]["properties"]["dependency-versions"]
-oses["pyodide"]["properties"]["build-frontend"] = {
+
-    **schema["properties"]["build-frontend"],
+schema["$defs"]["build-frontend-no-pyodide"] = build_frontend_schema(
-    "default": "pyodide-build",
+    FRONTENDS,
-    "description": 'On the pyodide platform, the build frontend must be "pyodide-build"',
+    'Set the tool to use to build, either "build" (default), "build[uv]", "uv", or "pip"',
-    "oneOf": [
+)
-        {"enum": ["pyodide-build"]},
+
-        {"type": "string", "pattern": "^pyodide-build; ?args:"},
+for os_val in oses.values():
-        {
+    os_val["properties"]["build-frontend"] = {"$ref": "#/$defs/build-frontend-no-pyodide"}
-            "type": "object",
+
-            "additionalProperties": False,
+oses["pyodide"]["properties"]["build-frontend"] = build_frontend_schema(
-            "required": ["name"],
+    ["pyodide-build"],
-            "properties": {
+    'On the pyodide platform, the build frontend must be "pyodide-build"',
-                "name": {"enum": ["pyodide-build"]},
+    default="pyodide-build",
-                "args": {"type": "array", "items": {"type": "string"}},
+)
            },
        },
    ],
 }
 schema["properties"]["overrides"] = overrides
 schema["properties"] |= oses
@@ -1 +1 @@
-__version__ = "4.1.1"
+__version__ = "4.2.0"
@@ -162,12 +162,12 @@ python_configurations = [
  { identifier = "cp314t-macosx_x86_64", version = "3.14", url = "https://www.python.org/ftp/python/3.14.6/python-3.14.6-macos11.pkg", sha256 = "d3c9fff52214847e4fab03e9eaf53dd2a8e51e3534aa0b61f201b749f86bef28" },
  { identifier = "cp314t-macosx_arm64", version = "3.14", url = "https://www.python.org/ftp/python/3.14.6/python-3.14.6-macos11.pkg", sha256 = "d3c9fff52214847e4fab03e9eaf53dd2a8e51e3534aa0b61f201b749f86bef28" },
  { identifier = "cp314t-macosx_universal2", version = "3.14", url = "https://www.python.org/ftp/python/3.14.6/python-3.14.6-macos11.pkg", sha256 = "d3c9fff52214847e4fab03e9eaf53dd2a8e51e3534aa0b61f201b749f86bef28" },
-  { identifier = "cp315-macosx_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315-macosx_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
-  { identifier = "cp315-macosx_arm64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315-macosx_arm64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
-  { identifier = "cp315-macosx_universal2", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315-macosx_universal2", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
-  { identifier = "cp315t-macosx_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315t-macosx_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
-  { identifier = "cp315t-macosx_arm64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315t-macosx_arm64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
-  { identifier = "cp315t-macosx_universal2", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-macos11.pkg", sha256 = "6f1ed07cc92ed6e694b38b29d929a4e55190532fddb3828afe68d07cd4bf4aff" },
+  { identifier = "cp315t-macosx_universal2", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg", sha256 = "57e0b1095f5dda52a8ff8b3b73140a52dfb3b76bdcf9e0284f2dbe10f7ee92ea" },
  { identifier = "pp39-macosx_x86_64", version = "3.9", url = "https://downloads.python.org/pypy/pypy3.9-v7.3.16-macos_x86_64.tar.gz", sha256 = "7ea762a1b0af7545a74cd4260bb3fd2812813deffef2ef8d2fddd5e03fa63ef1" },
  { identifier = "pp39-macosx_arm64", version = "3.9", url = "https://downloads.python.org/pypy/pypy3.9-v7.3.16-macos_arm64.tar.gz", sha256 = "b09ce3a865c1c0f4e58c0ee4f70511f1b27dfc1f7148f4b6060cfdfd581c9e82" },
  { identifier = "pp310-macosx_x86_64", version = "3.10", url = "https://downloads.python.org/pypy/pypy3.10-v7.3.19-macos_x86_64.tar.gz", sha256 = "63f9d30cdd9e47cfe279be941975ac3d24e46c79756cd1d1bd2c551c27d8b32c" },
@@ -194,10 +194,10 @@ python_configurations = [
  { identifier = "cp314t-win32", version = "3.14.6" },
  { identifier = "cp314-win_amd64", version = "3.14.6" },
  { identifier = "cp314t-win_amd64", version = "3.14.6" },
-  { identifier = "cp315-win32", version = "3.15.0-b4" },
+  { identifier = "cp315-win32", version = "3.15.0-rc1" },
-  { identifier = "cp315t-win32", version = "3.15.0-b4" },
+  { identifier = "cp315t-win32", version = "3.15.0-rc1" },
-  { identifier = "cp315-win_amd64", version = "3.15.0-b4" },
+  { identifier = "cp315-win_amd64", version = "3.15.0-rc1" },
-  { identifier = "cp315t-win_amd64", version = "3.15.0-b4" },
+  { identifier = "cp315t-win_amd64", version = "3.15.0-rc1" },
  { identifier = "cp39-win_arm64", version = "3.9.10" },
  { identifier = "cp310-win_arm64", version = "3.10.11" },
  { identifier = "cp311-win_arm64", version = "3.11.9" },
@@ -205,8 +205,8 @@ python_configurations = [
  { identifier = "cp313-win_arm64", version = "3.13.14" },
  { identifier = "cp314-win_arm64", version = "3.14.6" },
  { identifier = "cp314t-win_arm64", version = "3.14.6" },
-  { identifier = "cp315-win_arm64", version = "3.15.0-b4" },
+  { identifier = "cp315-win_arm64", version = "3.15.0-rc1" },
-  { identifier = "cp315t-win_arm64", version = "3.15.0-b4" },
+  { identifier = "cp315t-win_arm64", version = "3.15.0-rc1" },
  { identifier = "pp39-win_amd64", version = "3.9", url = "https://downloads.python.org/pypy/pypy3.9-v7.3.16-win64.zip", sha256 = "06ec12a5e964dc0ad33e6f380185a4d295178dce6d6df512f508e7aee00a1323" },
  { identifier = "pp310-win_amd64", version = "3.10", url = "https://downloads.python.org/pypy/pypy3.10-v7.3.19-win64.zip", sha256 = "c0d07bba6c8fb4e5804f4a8b3f8ef07cc3d89f6ad1db42a45ffb9be60bbb7cc2" },
  { identifier = "pp311-win_amd64", version = "3.11", url = "https://downloads.python.org/pypy/pypy3.11-v7.3.23-win64.zip", sha256 = "948b8ea58dea5b9917210fe4afd242c788fbfaba1c3f1a25e696a404f703389a" },
@@ -217,7 +217,8 @@ python_configurations = [
 python_configurations = [
  { identifier = "cp312-pyodide_wasm32", version = "3.12", default_pyodide_version = "0.27.7", node_version = "v22", sha256 = "0c2e7db42efa5d1dac38b50f8b3d659a1e3885d0a233494831b8206281307d52" },
  { identifier = "cp313-pyodide_wasm32", version = "3.13", default_pyodide_version = "0.29.4", node_version = "v22", sha256 = "a29fc4a076408a18fc29eb4b280f80c6dddc95c19514c874c29e590d0931c02a" },
-  { identifier = "cp314-pyodide_wasm32", version = "3.14", default_pyodide_version = "314.0.2", node_version = "v24", sha256 = "01ab1b229bf2031603bf20ad4ceb9c1059ba680b26df7bda2db4748906dfd78a" },
+  { identifier = "cp314-pyodide_wasm32", version = "3.14", default_pyodide_version = "314.0.4", node_version = "v24", sha256 = "257ceae085eaa1423c2ab49794d7a72bf36ddad475d126fa929791b9a8ab7289" },
  { identifier = "cp315-pyodide_wasm32", version = "3.15", default_pyodide_version = "315.0.0a2", node_version = "v24", sha256 = "d7c0d6ddf0fce807668d7413d0e0f20fbc7922128ba8361ed71d9cff048cb96a" },
 ]
 [android]
@@ -226,8 +227,8 @@ python_configurations = [
  { identifier = "cp313-android_x86_64", version = "3.13", url = "https://repo.maven.apache.org/maven2/com/chaquo/python/python/3.13.14/python-3.13.14-x86_64-linux-android.tar.gz", sha256 = "9d96f7e077677b6651b2e756034ed41ab4479f5f8bf3168a814f458bc2ac137e" },
  { identifier = "cp314-android_arm64_v8a", version = "3.14", url = "https://www.python.org/ftp/python/3.14.6/python-3.14.6-aarch64-linux-android.tar.gz", sha256 = "38bbe77d3167b5cd554e03b1021324926f09f3825202b065951dd7638e9c37e5" },
  { identifier = "cp314-android_x86_64", version = "3.14", url = "https://www.python.org/ftp/python/3.14.6/python-3.14.6-x86_64-linux-android.tar.gz", sha256 = "e04eb26607627e68d148f89de793372f54a345c91b13628567f24abcdd3bfa3e" },
-  { identifier = "cp315-android_arm64_v8a", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b2-aarch64-linux-android.tar.gz", sha256 = "de5e36ffc3c33b63a1ed53fe83db4dee16b003a3180ac35e5c4c203d3750e076" },
+  { identifier = "cp315-android_arm64_v8a", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-aarch64-linux-android.tar.gz", sha256 = "7d6fb28a69368841656f919a08141b0e3720837ac67987388037ee9d2a5c5492" },
-  { identifier = "cp315-android_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b2-x86_64-linux-android.tar.gz", sha256 = "e05ef9c142ea83b41b194b16014ffe2249d27783313c3b00b97f6c93d9a56b92" },
+  { identifier = "cp315-android_x86_64", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-x86_64-linux-android.tar.gz", sha256 = "f048f5c60b538efc64e4c26399a0a21202ce430949d5b2c10369d624548a5dc3" },
 ]
 [ios]
@@ -238,7 +239,7 @@ python_configurations = [
  { identifier = "cp314-ios_arm64_iphoneos", version = "3.14", url = "https://github.com/beeware/Python-Apple-support/releases/download/3.14-b10/Python-3.14-iOS-support.b10.tar.gz", sha256 = "200ef60eb67be0483ceb638daa9048f84f41a9a952707a5ad4c3198037c7b583" },
  { identifier = "cp314-ios_x86_64_iphonesimulator", version = "3.14", url = "https://github.com/beeware/Python-Apple-support/releases/download/3.14-b10/Python-3.14-iOS-support.b10.tar.gz", sha256 = "200ef60eb67be0483ceb638daa9048f84f41a9a952707a5ad4c3198037c7b583" },
  { identifier = "cp314-ios_arm64_iphonesimulator", version = "3.14", url = "https://github.com/beeware/Python-Apple-support/releases/download/3.14-b10/Python-3.14-iOS-support.b10.tar.gz", sha256 = "200ef60eb67be0483ceb638daa9048f84f41a9a952707a5ad4c3198037c7b583" },
-  { identifier = "cp315-ios_arm64_iphoneos", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-iOS-XCframework.tar.gz", sha256 = "dbf1095502e0b4a0dc2a4d96ae1b1d92ee8c0b7bea773862f7124ede0017e3dc" },
+  { identifier = "cp315-ios_arm64_iphoneos", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-iOS-XCframework.tar.gz", sha256 = "178bf7bef9cd0f18b27cacb98b14332a5ba44c9427543ffb71f8809bc1f11c3c" },
-  { identifier = "cp315-ios_x86_64_iphonesimulator", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-iOS-XCframework.tar.gz", sha256 = "dbf1095502e0b4a0dc2a4d96ae1b1d92ee8c0b7bea773862f7124ede0017e3dc" },
+  { identifier = "cp315-ios_x86_64_iphonesimulator", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-iOS-XCframework.tar.gz", sha256 = "178bf7bef9cd0f18b27cacb98b14332a5ba44c9427543ffb71f8809bc1f11c3c" },
-  { identifier = "cp315-ios_arm64_iphonesimulator", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0b4-iOS-XCframework.tar.gz", sha256 = "dbf1095502e0b4a0dc2a4d96ae1b1d92ee8c0b7bea773862f7124ede0017e3dc" },
+  { identifier = "cp315-ios_arm64_iphonesimulator", version = "3.15", url = "https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-iOS-XCframework.tar.gz", sha256 = "178bf7bef9cd0f18b27cacb98b14332a5ba44c9427543ffb71f8809bc1f11c3c" },
 ]
@@ -18,9 +18,64 @@
        "pyodide-prerelease",
        "pypy",
        "pypy-eol"
-      ]
+      ],
      "description": "A Python version or flavor to enable."
    },
-    "description": "A Python version or flavor to enable."
+    "build-frontend-no-pyodide": {
      "default": "default",
      "description": "Set the tool to use to build, either \"build\" (default), \"build[uv]\", \"uv\", or \"pip\"",
      "oneOf": [
        {
          "enum": [
            "pip",
            "build",
            "build[uv]",
            "uv",
            "default"
          ]
        },
        {
          "type": "string",
          "pattern": "^pip; ?args:"
        },
        {
          "type": "string",
          "pattern": "^build; ?args:"
        },
        {
          "type": "string",
          "pattern": "^build\\[uv\\]; ?args:"
        },
        {
          "type": "string",
          "pattern": "^uv; ?args:"
        },
        {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "name"
          ],
          "properties": {
            "name": {
              "enum": [
                "pip",
                "build",
                "build[uv]",
                "uv"
              ]
            },
            "args": {
              "type": "array",
              "items": {
                "type": "string"
              }
            }
          }
        }
      ],
      "title": "CIBW_BUILD_FRONTEND"
    }
  },
  "additionalProperties": false,
  "description": "cibuildwheel's settings.",
@@ -136,7 +191,7 @@
    },
    "build-frontend": {
      "default": "default",
-      "description": "Set the tool to use to build, either \"build\" (default), \"build[uv]\", \"uv\", or \"pip\"",
+      "description": "Set the tool to use to build, either \"build\" (default), \"build[uv]\", \"uv\", or \"pip\" (\"pyodide-build\" for pyodide)",
      "oneOf": [
        {
          "enum": [
@@ -144,6 +199,7 @@
            "build",
            "build[uv]",
            "uv",
            "pyodide-build",
            "default"
          ]
        },
@@ -163,6 +219,10 @@
          "type": "string",
          "pattern": "^uv; ?args:"
        },
        {
          "type": "string",
          "pattern": "^pyodide-build; ?args:"
        },
        {
          "type": "object",
          "additionalProperties": false,
@@ -175,7 +235,8 @@
                "pip",
                "build",
                "build[uv]",
-                "uv"
+                "uv",
                "pyodide-build"
              ]
            },
            "args": {
@@ -894,7 +955,7 @@
          "$ref": "#/properties/before-test"
        },
        "build-frontend": {
-          "$ref": "#/properties/build-frontend"
+          "$ref": "#/$defs/build-frontend-no-pyodide"
        },
        "build-verbosity": {
          "$ref": "#/properties/build-verbosity"
@@ -1033,7 +1094,7 @@
          "$ref": "#/properties/before-test"
        },
        "build-frontend": {
-          "$ref": "#/properties/build-frontend"
+          "$ref": "#/$defs/build-frontend-no-pyodide"
        },
        "build-verbosity": {
          "$ref": "#/properties/build-verbosity"
@@ -1118,7 +1179,7 @@
          "$ref": "#/properties/before-test"
        },
        "build-frontend": {
-          "$ref": "#/properties/build-frontend"
+          "$ref": "#/$defs/build-frontend-no-pyodide"
        },
        "build-verbosity": {
          "$ref": "#/properties/build-verbosity"
@@ -1208,7 +1269,8 @@
          "oneOf": [
            {
              "enum": [
-                "pyodide-build"
+                "pyodide-build",
                "default"
              ]
            },
            {
@@ -1308,7 +1370,7 @@
          "$ref": "#/properties/before-test"
        },
        "build-frontend": {
-          "$ref": "#/properties/build-frontend"
+          "$ref": "#/$defs/build-frontend-no-pyodide"
        },
        "build-verbosity": {
          "$ref": "#/properties/build-verbosity"
@@ -1393,7 +1455,7 @@
          "$ref": "#/properties/before-test"
        },
        "build-frontend": {
-          "$ref": "#/properties/build-frontend"
+          "$ref": "#/$defs/build-frontend-no-pyodide"
        },
        "build-verbosity": {
          "$ref": "#/properties/build-verbosity"
@@ -1,14 +1,21 @@
 # This file was autogenerated by uv via the following command:
 #    nox -s update_constraints
-annotated-types==0.7.0
+attrs==26.1.0
-    # via pydantic
+    # via
    #   cattrs
    #   pyodide-build
    #   pyodide-lock
 auditwheel-emscripten==0.2.5
    # via pyodide-build
 build==1.5.0
    # via
    #   -r .nox/update_constraints/tmp/constraints-pyodide.in
    #   pyodide-build
-certifi==2026.6.17
+cattrs==26.1.0
    # via
    #   pyodide-build
    #   pyodide-lock
 certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -19,7 +26,7 @@ click==8.1.8
    #   pyodide-cli
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -31,38 +38,31 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   auditwheel-emscripten
    #   build
    #   pyodide-build
    #   wheel
-pip==26.1.2
+pip==26.2.1
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   pyodide-build
    #   python-discovery
    #   virtualenv
 pydantic==2.13.4
    # via
    #   pyodide-build
    #   pyodide-lock
 pydantic-core==2.46.4
    # via pydantic
 pygments==2.20.0
    # via rich
-pyodide-build==0.36.0
+pyodide-build==0.39.0
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
 pyodide-cli==0.5.0
    # via
    #   auditwheel-emscripten
    #   pyodide-build
-pyodide-lock==0.1.3
+pyodide-lock==0.2.0
    # via pyodide-build
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via pyodide-build
@@ -73,15 +73,10 @@ rich==15.0.0
 ruamel-yaml==0.19.1
    # via pyodide-build
 typing-extensions==4.16.0
-    # via
+    # via cattrs
    #   pydantic
    #   pydantic-core
    #   typing-inspection
 typing-inspection==0.4.2
    # via pydantic
 urllib3==2.7.0
    # via requests
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via
    #   build
    #   pyodide-build
@@ -1,14 +1,21 @@
 # This file was autogenerated by uv via the following command:
 #    nox -s update_constraints
-annotated-types==0.7.0
+attrs==26.1.0
-    # via pydantic
+    # via
    #   cattrs
    #   pyodide-build
    #   pyodide-lock
 auditwheel-emscripten==0.2.5
    # via pyodide-build
 build==1.5.0
    # via
    #   -r .nox/update_constraints/tmp/constraints-pyodide.in
    #   pyodide-build
-certifi==2026.6.17
+cattrs==26.1.0
    # via
    #   pyodide-build
    #   pyodide-lock
 certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -19,7 +26,7 @@ click==8.1.8
    #   pyodide-cli
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -31,38 +38,31 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   auditwheel-emscripten
    #   build
    #   pyodide-build
    #   wheel
-pip==26.1.2
+pip==26.2.1
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   pyodide-build
    #   python-discovery
    #   virtualenv
 pydantic==2.13.4
    # via
    #   pyodide-build
    #   pyodide-lock
 pydantic-core==2.46.4
    # via pydantic
 pygments==2.20.0
    # via rich
-pyodide-build==0.36.0
+pyodide-build==0.39.0
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
 pyodide-cli==0.5.0
    # via
    #   auditwheel-emscripten
    #   pyodide-build
-pyodide-lock==0.1.3
+pyodide-lock==0.2.0
    # via pyodide-build
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via pyodide-build
@@ -73,15 +73,10 @@ rich==15.0.0
 ruamel-yaml==0.19.1
    # via pyodide-build
 typing-extensions==4.16.0
-    # via
+    # via cattrs
    #   pydantic
    #   pydantic-core
    #   typing-inspection
 typing-inspection==0.4.2
    # via pydantic
 urllib3==2.7.0
    # via requests
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via
    #   build
    #   pyodide-build
@@ -1,14 +1,21 @@
 # This file was autogenerated by uv via the following command:
 #    nox -s update_constraints
-annotated-types==0.7.0
+attrs==26.1.0
-    # via pydantic
+    # via
    #   cattrs
    #   pyodide-build
    #   pyodide-lock
 auditwheel-emscripten==0.2.5
    # via pyodide-build
 build==1.5.0
    # via
    #   -r .nox/update_constraints/tmp/constraints-pyodide.in
    #   pyodide-build
-certifi==2026.6.17
+cattrs==26.1.0
    # via
    #   pyodide-build
    #   pyodide-lock
 certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -19,7 +26,7 @@ click==8.1.8
    #   pyodide-cli
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -31,38 +38,31 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   auditwheel-emscripten
    #   build
    #   pyodide-build
    #   wheel
-pip==26.1.2
+pip==26.2.1
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   pyodide-build
    #   python-discovery
    #   virtualenv
 pydantic==2.13.4
    # via
    #   pyodide-build
    #   pyodide-lock
 pydantic-core==2.46.4
    # via pydantic
 pygments==2.20.0
    # via rich
-pyodide-build==0.36.0
+pyodide-build==0.39.0
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
 pyodide-cli==0.5.0
    # via
    #   auditwheel-emscripten
    #   pyodide-build
-pyodide-lock==0.1.3
+pyodide-lock==0.2.0
    # via pyodide-build
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via pyodide-build
@@ -73,15 +73,10 @@ rich==15.0.0
 ruamel-yaml==0.19.1
    # via pyodide-build
 typing-extensions==4.16.0
-    # via
+    # via cattrs
    #   pydantic
    #   pydantic-core
    #   typing-inspection
 typing-inspection==0.4.2
    # via pydantic
 urllib3==2.7.0
    # via requests
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via
    #   build
    #   pyodide-build
@@ -0,0 +1,86 @@
 # This file was autogenerated by uv via the following command:
 #    nox -s update_constraints
 attrs==26.1.0
    # via
    #   cattrs
    #   pyodide-build
    #   pyodide-lock
 auditwheel-emscripten==0.2.5
    # via pyodide-build
 build==1.5.0
    # via
    #   -r .nox/update_constraints/tmp/constraints-pyodide.in
    #   pyodide-build
 cattrs==26.1.0
    # via
    #   pyodide-build
    #   pyodide-lock
 certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
 click==8.1.8
    # via
    #   -r .nox/update_constraints/tmp/constraints-pyodide.in
    #   pyodide-build
    #   pyodide-cli
 distlib==0.4.3
    # via virtualenv
 filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
 idna==3.18
    # via requests
 leb128==1.0.9
    # via auditwheel-emscripten
 markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
 packaging==26.3
    # via
    #   auditwheel-emscripten
    #   build
    #   pyodide-build
    #   wheel
 pip==26.2.1
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
 platformdirs==4.11.0
    # via
    #   pyodide-build
    #   virtualenv
 pygments==2.20.0
    # via rich
 pyodide-build==0.39.0
    # via -r .nox/update_constraints/tmp/constraints-pyodide.in
 pyodide-cli==0.5.0
    # via
    #   auditwheel-emscripten
    #   pyodide-build
 pyodide-lock==0.2.0
    # via pyodide-build
 pyproject-hooks==1.2.0
    # via build
 python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via pyodide-build
 rich==15.0.0
    # via
    #   pyodide-build
    #   pyodide-cli
 ruamel-yaml==0.19.1
    # via pyodide-build
 typing-extensions==4.16.0
    # via cattrs
 urllib3==2.7.0
    # via requests
 virtualenv==21.7.1
    # via
    #   build
    #   pyodide-build
 wheel==0.47.0
    # via
    #   auditwheel-emscripten
    #   pyodide-build
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -28,7 +28,7 @@ distlib==0.4.3
    # via virtualenv
 exceptiongroup==1.3.1
    # via cattrs
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -46,7 +46,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -58,13 +58,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -75,7 +74,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -99,7 +98,7 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
 zipp==4.1.0
    # via importlib-metadata
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -42,7 +42,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -54,13 +54,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -71,7 +70,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -91,5 +90,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1; implementation_name != "graalpy"
+filelock==3.32.2; implementation_name != "graalpy"
 filelock==3.29.7; implementation_name == "graalpy"
    # via
    #   python-discovery
@@ -43,7 +43,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -55,14 +55,14 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2; implementation_name != "graalpy" or platform_system != "Windows"
+pip==26.2.1; implementation_name != "graalpy"
 pip==26.1.2; implementation_name == "graalpy" and platform_system != "Windows"
 pip==26.0.1; implementation_name == "graalpy" and platform_system == "Windows"
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -73,7 +73,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -93,5 +93,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -42,7 +42,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -54,13 +54,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -71,7 +70,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -91,5 +90,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -42,7 +42,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -54,13 +54,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -71,7 +70,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -91,5 +90,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -42,7 +42,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -54,13 +54,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -71,7 +70,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -91,5 +90,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -16,7 +16,7 @@ build==1.4.4
    # via -r cibuildwheel/resources/constraints.in
 cattrs==25.3.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -66,7 +66,6 @@ pkgconf==2.4.3.post2
    # via -r cibuildwheel/resources/constraints.in
 platformdirs==4.4.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.32
@@ -77,7 +76,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.32.5
    # via
@@ -101,7 +100,7 @@ urllib3==2.6.3
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
 zipp==3.23.1
    # via importlib-metadata
@@ -16,7 +16,7 @@ build==1.5.0
    # via -r cibuildwheel/resources/constraints.in
 cattrs==26.1.0
    # via requests-cache
-certifi==2026.6.17
+certifi==2026.7.22
    # via requests
 charset-normalizer==3.4.9
    # via requests
@@ -26,7 +26,7 @@ delvewheel==1.13.0
    # via -r cibuildwheel/resources/constraints.in
 distlib==0.4.3
    # via virtualenv
-filelock==3.31.1
+filelock==3.32.2
    # via
    #   python-discovery
    #   virtualenv
@@ -42,7 +42,7 @@ markdown-it-py==4.2.0
    # via rich
 mdurl==0.1.2
    # via markdown-it-py
-packaging==26.2
+packaging==26.3
    # via
    #   abi3audit
    #   auditwheel
@@ -54,13 +54,12 @@ pefile==2024.8.26
    # via
    #   abi3audit
    #   delvewheel
-pip==26.1.2
+pip==26.2.1
    # via -r cibuildwheel/resources/constraints.in
 pkgconf==3.0.1.post0
    # via -r cibuildwheel/resources/constraints.in
-platformdirs==4.10.1
+platformdirs==4.11.0
    # via
    #   python-discovery
    #   requests-cache
    #   virtualenv
 pyelftools==0.33
@@ -71,7 +70,7 @@ pygments==2.20.0
    # via rich
 pyproject-hooks==1.2.0
    # via build
-python-discovery==1.4.4
+python-discovery==1.5.1
    # via virtualenv
 requests==2.34.2
    # via
@@ -91,5 +90,5 @@ urllib3==2.7.0
    # via
    #   requests
    #   requests-cache
-virtualenv==21.6.1
+virtualenv==21.7.1
    # via -r cibuildwheel/resources/constraints.in
@@ -1,4 +1,4 @@
 url = "https://nodejs.org/dist/"
-v24 = "v24.18.0"
+v24 = "v24.19.0"
-v22 = "v22.23.1"
+v22 = "v22.23.2"
 v20 = "v20.20.2"
@@ -1,54 +1,54 @@
 [x86_64]
-manylinux2014 = quay.io/pypa/manylinux2014_x86_64@sha256:0d25b049964b2549b83384036abdff06789a8c0b1e9ff003ec80f0d531f79e50  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_x86_64@sha256:c163a278006f45883c117b4166b93cdc7b574b62e58292ed9e52879579841d77  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_x86_64@sha256:a61875a2f84cab7df8de222ff12cabc08ff86eb4ad402ac90ba7bdaed9600cca  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_x86_64@sha256:012f4a50472412f18bb2b450c1cce7158434cfae4ae878591c2748a13a30c2be  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_x86_64@sha256:b6e1f264da7bf4e8db3e6a625ea1ecaf1e52290253df8588f71e4a9e50a85a17  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_x86_64@sha256:db817cd4c670f1191d74db6a94a0b115954af78861db7da660de4e93ebf2984c  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_x86_64@sha256:fd0694e23637ae8d13433c58f647aba1aae5de4fd50350201307be453a8b2ff4  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_x86_64@sha256:f130bd3e3aebb39abcdec28a89f987f0d31b52d74bac5852318303698e9a5033  # 2026.08.04-1
 [i686]
-manylinux2014 = quay.io/pypa/manylinux2014_i686@sha256:9833ed0665e4bd2aceeda6f7ea81b69c75a941464b659edf62c98aa63526d1ba  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_i686@sha256:abfc526a4f9d9692ed6d53b60ffd6be764aa7a4dc1d61522a1ce5ea64138aa53  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_i686@sha256:3a4de216ae551c1cbb8f93d4bbf9faebe7fb16a67afa3380b9a3ed2cc7b80fcf  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_i686@sha256:605a71b7fa720562ad76147860e33d97b2a884ca9d5a454b2f7f353caec40ded  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_i686@sha256:1fc55618156152a6570991a6ee81038fd507b48c41cbdede495931146b074869  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_i686@sha256:82e74fcb11aa1d425260804292b8a25533f37eda280570b2441a465dc159351a  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_i686@sha256:a85be8fc5aa7fa291b8bee5647469d3d48dd26600cc7295553ff47ca60906ff2  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_i686@sha256:2ccf31ab3685cf8952f2d9251f79a29c7ffcb663bbc58c10b2317a15a86ac96d  # 2026.08.04-1
 [aarch64]
-manylinux2014 = quay.io/pypa/manylinux2014_aarch64@sha256:ae34a6ceeefe0b535c525b2e96f297311c8f1e01cfd8b9be5f647eece5b5c60b  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_aarch64@sha256:5d366450eeff9abe09cc93db50fd2c9832bafaf473daa7a911d8b184424bbefd  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_aarch64@sha256:162c81dfd3efc710732a571717d3c916a6945ebf279e879ddee3243af96fe46f  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_aarch64@sha256:52e4da6e9348db7cd0b529a827623b62b7c1fe867ba515ae752fa13d41f7f46e  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_aarch64@sha256:ae032906c631ad572a91bcc9545023d327822912957ae85a57c85181836662b6  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_aarch64@sha256:86585a1adfa6cdb4e3aea2f5bf11d6fffa37acf17aa902605d7237c55d3c88ce  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_aarch64@sha256:e6ac3eca5f7d2cd5b8267b94b65d9a693e7ba06f5ba4c6643b1b0e6f9ae2cde3  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_aarch64@sha256:1fa8dcacab5e13769abb36028f98bd2c0a1af4dbde492505f774d7f0ce01e87f  # 2026.08.04-1
 [ppc64le]
-manylinux2014 = quay.io/pypa/manylinux2014_ppc64le@sha256:7e311ceece0fd3faa54a8539fb0b7906ee2ac068ecc39095e48ed1097312eaa0  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_ppc64le@sha256:405ac40dffd7a76b4864a185d0440c6449c855eaffd1a20b56af9e4cc15318a6  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_ppc64le@sha256:32ec597dd87e27980750115a6c020cae54fd17386e18d86d695e35e6b3a3e0da  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_ppc64le@sha256:ad99a0b35b8820b0ccd1d117e23097da224df11c98f19e2783735d5b7e717526  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_ppc64le@sha256:7f649dea6f31fbc4ca6d665e78e87a192b55e739c44ed9965129956be77c4e3d  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_ppc64le@sha256:bc61f200bea02d2a507bb292d6210297bd12abc71fa1e8e1f05b1755495b8518  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_ppc64le@sha256:d59ad21615cf5b83cc9046cf7c44d07e8ef1247333e8a72147d7c781008605c1  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_ppc64le@sha256:0acbe90fc63807d3ce52249d1d21e5625fe105aee7f3de60583b8485d82401c8  # 2026.08.04-1
 [s390x]
-manylinux2014 = quay.io/pypa/manylinux2014_s390x@sha256:e392818123219665c259c9a5e389cecd978918dc279fe8e3542864f1067b9cdb  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_s390x@sha256:3797dba7137e416c67ca1f45222dd382a2bfdaee8c751e95a79503adf38071e7  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_s390x@sha256:9c4f347bc43b1b799a296f6801a8845af132fa6f919cc6237b889c8d2e16ae01  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_s390x@sha256:43b1c58ab1a37f3bf45d65026c968be18f2a4dddd4f923291d1122b3e42380da  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_s390x@sha256:37fe79ec71fed0eaa4d6edfb22244699877e3cd92a2ca4679bf9e4fd5f45c61d  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_s390x@sha256:b9bba263ab1309ddd2b41560f8ea15138fdb31fa31daf5858878d00b19d57d77  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_s390x@sha256:e29d28c68a0bd4594fd41cb2435ca64388038b05c24e77b34f186ff90a2968c4  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_s390x@sha256:aec126e37ce315e724217342bb62533cbfeae88b4ed5aa2a8bfd5ee4a4a1ca77  # 2026.08.04-1
 [pypy_x86_64]
-manylinux2014 = quay.io/pypa/manylinux2014_x86_64@sha256:0d25b049964b2549b83384036abdff06789a8c0b1e9ff003ec80f0d531f79e50  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_x86_64@sha256:c163a278006f45883c117b4166b93cdc7b574b62e58292ed9e52879579841d77  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_x86_64@sha256:a61875a2f84cab7df8de222ff12cabc08ff86eb4ad402ac90ba7bdaed9600cca  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_x86_64@sha256:012f4a50472412f18bb2b450c1cce7158434cfae4ae878591c2748a13a30c2be  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_x86_64@sha256:b6e1f264da7bf4e8db3e6a625ea1ecaf1e52290253df8588f71e4a9e50a85a17  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_x86_64@sha256:db817cd4c670f1191d74db6a94a0b115954af78861db7da660de4e93ebf2984c  # 2026.08.04-1
 [pypy_i686]
-manylinux2014 = quay.io/pypa/manylinux2014_i686@sha256:9833ed0665e4bd2aceeda6f7ea81b69c75a941464b659edf62c98aa63526d1ba  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_i686@sha256:abfc526a4f9d9692ed6d53b60ffd6be764aa7a4dc1d61522a1ce5ea64138aa53  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_i686@sha256:3a4de216ae551c1cbb8f93d4bbf9faebe7fb16a67afa3380b9a3ed2cc7b80fcf  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_i686@sha256:605a71b7fa720562ad76147860e33d97b2a884ca9d5a454b2f7f353caec40ded  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_i686@sha256:1fc55618156152a6570991a6ee81038fd507b48c41cbdede495931146b074869  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_i686@sha256:82e74fcb11aa1d425260804292b8a25533f37eda280570b2441a465dc159351a  # 2026.08.04-1
 [pypy_aarch64]
-manylinux2014 = quay.io/pypa/manylinux2014_aarch64@sha256:ae34a6ceeefe0b535c525b2e96f297311c8f1e01cfd8b9be5f647eece5b5c60b  # 2026.07.19-1
+manylinux2014 = quay.io/pypa/manylinux2014_aarch64@sha256:5d366450eeff9abe09cc93db50fd2c9832bafaf473daa7a911d8b184424bbefd  # 2026.08.04-1
-manylinux_2_28 = quay.io/pypa/manylinux_2_28_aarch64@sha256:162c81dfd3efc710732a571717d3c916a6945ebf279e879ddee3243af96fe46f  # 2026.07.19-1
+manylinux_2_28 = quay.io/pypa/manylinux_2_28_aarch64@sha256:52e4da6e9348db7cd0b529a827623b62b7c1fe867ba515ae752fa13d41f7f46e  # 2026.08.04-1
-manylinux_2_34 = quay.io/pypa/manylinux_2_34_aarch64@sha256:ae032906c631ad572a91bcc9545023d327822912957ae85a57c85181836662b6  # 2026.07.19-1
+manylinux_2_34 = quay.io/pypa/manylinux_2_34_aarch64@sha256:86585a1adfa6cdb4e3aea2f5bf11d6fffa37acf17aa902605d7237c55d3c88ce  # 2026.08.04-1
 [armv7l]
-manylinux_2_31 = quay.io/pypa/manylinux_2_31_armv7l@sha256:a58ece566251a37b3b4cd17d7ef85d88df05f80670c7dfe80c1b1ffe4cd00bf8  # 2026.07.19-1
+manylinux_2_31 = quay.io/pypa/manylinux_2_31_armv7l@sha256:bbd7f67c0fc2a9541ed462a41bd9abbfa696801483533ba44ec5fe3120e8cda6  # 2026.08.04-1
-manylinux_2_35 = quay.io/pypa/manylinux_2_35_armv7l@sha256:c8dba9616907a810e2668afb88153bf47a84422933733dbf4ea7b561af5e8d1e  # 2026.07.19-1
+manylinux_2_35 = quay.io/pypa/manylinux_2_35_armv7l@sha256:1335af18598960ecc4b57ccf239cacbca847af9f197e65e495ba376d0178385a  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_armv7l@sha256:d87cbc211df71486a6a90fb2bece474166f3e2dcf81bbfc4be07607fd64185b0  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_armv7l@sha256:fd4998e62ec4476d76d7b180b523e21ac7557d7f41f1b1e7d02ced21a3eee8b5  # 2026.08.04-1
 [riscv64]
-manylinux_2_39 = quay.io/pypa/manylinux_2_39_riscv64@sha256:04b3acc69a6cebb10ac1252587d202acce6445d91c783d3f92229bb2b2483069  # 2026.07.19-1
+manylinux_2_39 = quay.io/pypa/manylinux_2_39_riscv64@sha256:41197d59628c256b0fde14a5dd5bb306e17665c515a8385e43cc72c1da1d7866  # 2026.08.04-1
-musllinux_1_2 = quay.io/pypa/musllinux_1_2_riscv64@sha256:2d36623ffc59785e124ecf2992456847baaf2f2e0a87e64d23f2f6a69e5a0357  # 2026.07.19-1
+musllinux_1_2 = quay.io/pypa/musllinux_1_2_riscv64@sha256:aaf12357d794dc375e797dce7fd71e92013bc46f269bc4cffe4da1f188080afb  # 2026.08.04-1
@@ -1 +1 @@
-default = { version = "21.6.1", url = "https://github.com/pypa/get-virtualenv/releases/download/21.6.1/virtualenv.pyz", sha256 = "32490c6eea415c3a8f44ee112bbef07bc7b70a0aba706672240c6c66d4f7d9cc" }
+default = { version = "21.7.1", url = "https://github.com/pypa/get-virtualenv/releases/download/21.7.1/virtualenv.pyz", sha256 = "d63ac10e610738c3dcfa51ee0799e6b69ce2964d76cab734542684baf0ed3a5f" }
@@ -92,7 +92,7 @@ class BuildSelector:
                return False
        # filter out groups that are not enabled
-        if EnableGroup.CPythonPrerelease not in self.enable and fnmatch(build_id, "cp315*"):
+        if EnableGroup.CPythonPrerelease not in self.enable and fnmatch(build_id, "cp316*"):
            return False
        is_pypy_eol = fnmatch(build_id, "pp3?-*") or fnmatch(build_id, "pp310-*")
        is_pypy = fnmatch(build_id, "pp*") and not is_pypy_eol
@@ -104,19 +104,6 @@ class BuildSelector:
            return False
        if EnableGroup.PyodideEoL not in self.enable and fnmatch(build_id, "cp312-pyodide_*"):
            return False
        # NOTE: Re-enable this when we have a new Pyodide prerelease (e.g., 315.0.0a1+)
        # When doing this, also:
        #   1. update Pyodide tests in unit_test/build_selector_test.py and unit_test/options_test.py accordingly.
        #   2. update Python versions for Pyodide identifiers in cibuildwheel/selector.py.
        #   3. update constraints as necessary via bin/generate_pyodide_constraints.py and add/delete
        #      Pyodide constraints files in cibuildwheel/resources/constraints/ as necessary.
        # When re-enabling, update the pattern to match the experimental Python version when
        # it is bumped to Python 3.15 (likely cp315-pyodide_*).
        # This depends on the CPython version being used in the Pyodide runtime at the time.
        # if EnableGroup.PyodidePrerelease not in self.enable and fnmatch(
        #     build_id, "cp315-pyodide_*"
        # ):
        #     return False
        should_build = selector_matches(self.build_config, build_id)
        should_skip = selector_matches(self.skip_config, build_id)
@@ -9,6 +9,7 @@ __lazy_modules__ = {
    "tarfile",
    "typing",
    "urllib",
    "urllib.error",
    "urllib.request",
    "zipfile",
 }
@@ -20,6 +21,7 @@ import shutil
 import ssl
 import tarfile
 import time
 import urllib.error
 import urllib.request
 from contextlib import contextmanager
 from pathlib import Path, PurePath
@@ -86,17 +88,24 @@ def download(url: str, dest: Path, *, sha256: str | None = None) -> None:
    # so we use certifi (this sounds odd but requests also does this by default)
    cafile = os.environ.get("SSL_CERT_FILE", certifi.where())
    context = ssl.create_default_context(cafile=cafile)
-    repeat_num = 3
+    # exponential backoff, so that a network outage of about a minute is survivable
    repeat_num = 6
    for i in range(repeat_num):
        try:
            with urllib.request.urlopen(url, context=context) as response:
                dest.write_bytes(response.read())
                break
        except urllib.error.HTTPError as error:
            # a client error, such as a bad URL, will not fix itself
            if i == repeat_num - 1 or 400 <= error.code < 500:
                raise
            time.sleep(3 * 2**i)
        except OSError:
            if i == repeat_num - 1:
                raise
-            time.sleep(3)
+            time.sleep(3 * 2**i)
    if sha256:
        with dest.open("rb") as f:
@@ -1,6 +1,6 @@
 # Maintaining Pyodide support
-Last updated: May 2026
+Last updated: August 2026
 This page describes how to update cibuildwheel's Pyodide platform code when either:
@@ -11,17 +11,26 @@ This page describes how to update cibuildwheel's Pyodide platform code when eith
 Pyodide has three types of releases that matter to cibuildwheel:
- **Stable** – the most recent full Pyodide release (e.g., `0.29.x` / cp313). This is enabled by default with no special `CIBW_ENABLE` flag needed.
+- **Stable** – the most recent full Pyodide release.
- **Prerelease** – an alpha/beta/rc Pyodide release that uses the _next_ CPython version (e.g., `314.0.0a1` / cp314). Users must opt in with `CIBW_ENABLE: pyodide-prerelease` to build against this version. This may or may not be available at any given time, depending on the Pyodide release cycle.
+  This is enabled by default with no special `CIBW_ENABLE` flag needed.
- **End-of-life (EoL)** – older Pyodide stable releases that are no longer the current stable. These are kept available behind `CIBW_ENABLE: pyodide-eol` so that users who still need to build for older Pyodide versions can do so.
+- **Prerelease** – an alpha/beta/rc Pyodide release that uses the _next_ CPython
  version. Users must opt in with `CIBW_ENABLE:
  cpython-prerelease` to build against this version. This may or may not be
  available at any given time, depending on the Pyodide release cycle.
 - **End-of-life (EoL)** – older Pyodide stable releases that are no longer the
  current stable. These are kept available behind `CIBW_ENABLE: pyodide-eol` so
  that users who still need to build for older Pyodide versions can do so.
-The guards in `cibuildwheel/selector.py` enforce this distinction. The constraints files under `cibuildwheel/resources/` pin the exact tool versions that go with each build.
+The guards in `cibuildwheel/selector.py` enforce this distinction. The
 constraints files under `cibuildwheel/resources/` pin the exact tool versions
 that go with each build.
 ---
 ## When a new Pyodide prerelease becomes available
-For example, consider a scenario when Pyodide ships a new `315.0.0a1` with cp315 support.
+For example, consider a scenario when Pyodide ships a new `315.0.0a1` with cp315
 support.
 ### 1. Add the new Python configuration
@@ -31,61 +40,39 @@ In `cibuildwheel/resources/build-platforms.toml`, add an entry under `[pyodide]`
 { identifier = "cp315-pyodide_wasm32", version = "3.15", default_pyodide_version = "315.0.0a1", node_version = "v24", sha256 = "SHA256" },
 ```
-`version` is the CPython version string, `default_pyodide_version` is the Pyodide release to use when the user does not pin one explicitly (use the latest available alpha/beta for a prerelease entry), and `node_version` is the minimum Node.js major required by that Pyodide release — check the [pyodide-build FAQ](https://pyodide-build.readthedocs.io/en/latest/faq.html#what-node-js-version-do-i-need) for a rudimentary idea of what the correct value is. `sha256` is the checksum of the Pyodide xbuildenv tarball.
+`version` is the CPython version string, `default_pyodide_version` is the
 Pyodide release to use when the user does not pin one explicitly (use the latest
 available alpha/beta for a prerelease entry), and `node_version` is the minimum
 Node.js major required by that Pyodide release — check the
 [pyodide-build FAQ](https://pyodide-build.readthedocs.io/en/latest/faq.html#what-node-js-version-do-i-need)
 for a rudimentary idea of what the correct value is. `sha256` is the checksum of
 the Pyodide xbuildenv tarball.
-### 2. Update the prerelease guards in the selector
+### 2. Generate and pin a constraints file
-In `cibuildwheel/selector.py`, update the patterns in the `PyodidePrerelease` guards to match the new identifier:
+Run the `update_constraints` `nox` session, which reads `build-platforms.toml`
-
+and regenerates all Pyodide constraints files automatically:
 ```python
 if EnableGroup.PyodidePrerelease not in self.enable and fnmatch(
    build_id, "cp315-pyodide_*"
 ):
    return False
 ```
 ### 3. Generate and pin a constraints file
 Run the `update_constraints` `nox` session, which reads `build-platforms.toml` and regenerates all Pyodide constraints files automatically:
 ```bash
 nox -s update_constraints
 ```
-### 4. Update tests
+### 3. Update tests
-Update the unit tests so the new identifier is accepted by the selector with `PyodidePrerelease` enabled and rejected without it. Pyodide-specific integration tests may also need their hardcoded expected-wheel lists extended.
+Update the unit tests so the new identifier is accepted by the selector with
-
+`CPythonPrerelease` enabled and rejected without it. Pyodide-specific
-## When a Pyodide prerelease becomes stable
+integration tests may also need their hardcoded expected-wheel lists extended.
 Pyodide uses a versioning scheme where the stable release for a given CPython version is named `[PythonMajorMinor].0.0`, so the first stable release shipping cp314 will be **`314.0.0`**. See [pyodide/pyodide#6084](https://github.com/pyodide/pyodide/issues/6084) for a rationale of this versioning scheme.
 ### 1. Update the stable entries, and remove (or replace) the prerelease entry
 In `build-platforms.toml`, update the former prerelease entry's `default_pyodide_version` to the new stable release (e.g. `314.0.0`) and remove the prerelease marker from the identifier if present. Remove previous prerelease entries if they are now obsolete, or update them to the next prerelease if one is available. Move the previous stable version behind `pyodide-eol` rather than dropping it outright (see below).
 ### 2. Disable or update the prerelease guards
 In `selector.py`:
 - **If a new prerelease is available**: update the `fnmatch` pattern to the next identifier (e.g. `cp315-pyodide_*`) as described above.
 - **If there is no new prerelease**: comment out the `PyodidePrerelease` logic.
 ### 3. Update the constraints file
 Run `nox -s update_constraints` to regenerate the constraints file for the newly stable version. If the entry was already in `build-platforms.toml` as a prerelease, its constraints file already exists, and this step just refreshes it against the stable Pyodide release and updates the dependencies' versions.
 ### 4. Update tests
 Update the unit tests so the newly stable identifier is accepted by the selector without needing `PyodidePrerelease` in the enable set. Pyodide-specific integration tests may also need their hardcoded expected-wheel lists extended.
 ## When an old Pyodide version is to be moved to end-of-life
-When a Pyodide version is superseded by a new stable release, move it behind the `pyodide-eol` enable flag. We want to allow users who still build for older Pyodide ABIs time to upgrade.
+When a Pyodide version is superseded by a new stable release, move it behind the
 `pyodide-eol` enable flag. We want to allow users who still build for older
 Pyodide ABIs time to upgrade.
 ### 1. Add the `pyodide-eol` guard in the selector
-In `cibuildwheel/selector.py`, add (or update) the `PyodideEoL` guard to include the old identifier:
+In `cibuildwheel/selector.py`, add (or update) the `PyodideEoL` guard to include
 the old identifier:
 ```python
 if EnableGroup.PyodideEoL not in self.enable and fnmatch(build_id, "cp312-pyodide_*"):
@@ -94,15 +81,23 @@ if EnableGroup.PyodideEoL not in self.enable and fnmatch(build_id, "cp312-pyodid
 ### 2. Update tests
-Update the unit tests so the EoL identifier requires `PyodideEoL` to be included in the enable set. The default (no `CIBW_ENABLE`) should exclude it.
+Update the unit tests so the EoL identifier requires `PyodideEoL` to be included
 in the enable set. The default (no `CIBW_ENABLE`) should exclude it.
 ## When an old Pyodide version is to be fully retired
-Retirement is not expected to happen on a routine basis. It is only warranted when the Pyodide ecosystem itself has evolved to the point where an older ABI version is considered obsolete – for example, if the surrounding toolchain, packaging standards, or runtime infrastructure have moved on so substantially that building for the older version no longer makes practical sense. Any retirement is to be discussed and agreed upon by Pyodide maintainers before proceeding.
+Retirement is not expected to happen on a routine basis. It is only warranted
 when the Pyodide ecosystem itself has evolved to the point where an older ABI
 version is considered obsolete – for example, if the surrounding toolchain,
 packaging standards, or runtime infrastructure have moved on so substantially
 that building for the older version no longer makes practical sense. Any
 retirement is to be discussed and agreed upon by Pyodide maintainers before
 proceeding.
 ### 1. Remove the Python configuration
-Delete the entry from `build-platforms.toml` and remove the `PyodideEoL` guard for that identifier in `selector.py`.
+Delete the entry from `build-platforms.toml` and remove the `PyodideEoL` guard
 for that identifier in `selector.py`.
 ### 2. Delete the constraints file
@@ -110,4 +105,5 @@ Remove `cibuildwheel/resources/constraints-pyodideXYZ.txt`.
 ### 3. Update tests
-Remove references to the old identifier from the unit tests, integration tests, and drop any expected-wheel entries for it from the test helper.
+Remove references to the old identifier from the unit tests, integration tests,
 and drop any expected-wheel entries for it from the test helper.
@@ -5,6 +5,20 @@ ref: changelog
 # Changelog
 ### v4.2.0
 _4 August 2026_
 - 🌟 CPython 3.15 wheels are now built by default - without the `"cpython-prerelease"` [`enable`](https://cibuildwheel.pypa.io/en/stable/options/#enable) set. It's time to build and upload these wheels to PyPI! This release includes CPython 3.15.0rc1, which is guaranteed to be ABI compatible with the final release. (#2944)
 - ✨ Adds Pyodide 3.15 support with the `cp315-pyodide_wasm32` build identifier, using Pyodide 315.0.0a2. These are also stable wrt. the final release. (#2958)
 - 🐛 Retries a failed download six times with exponential backoff, so short network outages no longer stop a build. A `4xx` response is still reported at once. (#2953)
 - 🐛 Accepts `default` as a [`build-frontend`](https://cibuildwheel.pypa.io/en/stable/options/#build-frontend) value on Pyodide, and accepts `pyodide-build` in the top-level table and in overrides (#2951)
 - 🛠 Holds pip back on GraalPy, where newer pip breaks the build (#2955)
 - 🛠 Updates Pyodide to 314.0.4 (#2949, #2952)
 - 🛠 Updates dependencies and container pins (#2952, #2960)
 - 💼 Updates CI action pins (#2948, #2954)
 - 🧪 Uses pp311 for the abi3 test, and deletes `test_overridden_pip_constraint`, which is not necessary since #2583 (#2956, #2957)
 ### v4.1.1
 _24 July 2026_
@@ -158,7 +158,7 @@ There are two suggested methods for keeping cibuildwheel up to date that instead
 If you use GitHub Actions for builds, you can use cibuildwheel as an action:
 ```yaml
-uses: pypa/cibuildwheel@v4.1.1
+uses: pypa/cibuildwheel@v4.2.0
 ```
 This is a composite step that just runs cibuildwheel using pipx. You can set command-line options as `with:` parameters, and use `env:` as normal.
@@ -183,7 +183,7 @@ The second option, and the only one that supports other CI systems, is using a `
 ```bash
 # requirements-cibw.txt
-cibuildwheel==4.1.1
+cibuildwheel==4.2.0
 ```
 Then your install step would have `python -m pip install -r requirements-cibw.txt` in it. Your `.github/dependabot.yml` file could look like this:
@@ -402,7 +402,7 @@ Solutions to this vary, but the simplest is to use pipx:
 # most runners have pipx preinstalled, but in case you don't
 python3 -m pip install pipx
-pipx run cibuildwheel==4.1.1 --output-dir wheelhouse
+pipx run cibuildwheel==4.2.0 --output-dir wheelhouse
 pipx run twine upload wheelhouse/*.whl
 ```
@@ -65,7 +65,7 @@ When setting the options, you can use shell-style globbing syntax, as per [fnmat
 | Python 3.12   | cp312-macosx_x86_64<br/>cp312-macosx_universal2<br/>cp312-macosx_arm64 | cp312-win_amd64<br/>cp312-win32<br/>cp312-win_arm64 | cp312-manylinux_x86_64<br/>cp312-manylinux_i686<br/>cp312-musllinux_x86_64<br/>cp312-musllinux_i686 | cp312-manylinux_aarch64<br/>cp312-manylinux_ppc64le<br/>cp312-manylinux_s390x<br/>cp312-manylinux_armv7l<br/>cp312-manylinux_riscv64<br/>cp312-musllinux_aarch64<br/>cp312-musllinux_ppc64le<br/>cp312-musllinux_s390x<br/>cp312-musllinux_armv7l<br/>cp312-musllinux_riscv64 |                                                  |                                                                                                   | cp312-pyodide_wasm32 |
 | Python 3.13   | cp313-macosx_x86_64<br/>cp313-macosx_universal2<br/>cp313-macosx_arm64 | cp313-win_amd64<br/>cp313-win32<br/>cp313-win_arm64 | cp313-manylinux_x86_64<br/>cp313-manylinux_i686<br/>cp313-musllinux_x86_64<br/>cp313-musllinux_i686 | cp313-manylinux_aarch64<br/>cp313-manylinux_ppc64le<br/>cp313-manylinux_s390x<br/>cp313-manylinux_armv7l<br/>cp313-manylinux_riscv64<br/>cp313-musllinux_aarch64<br/>cp313-musllinux_ppc64le<br/>cp313-musllinux_s390x<br/>cp313-musllinux_armv7l<br/>cp313-musllinux_riscv64 | cp313-android_arm64_v8a<br/>cp313-android_x86_64 | cp313-ios_arm64_iphoneos<br/>cp313-ios_arm64_iphonesimulator<br/>cp313-ios_x86_64_iphonesimulator | cp313-pyodide_wasm32 |
 | Python 3.14   | cp314-macosx_x86_64<br/>cp314-macosx_universal2<br/>cp314-macosx_arm64<br><br>cp314t-macosx_x86_64<br/>cp314t-macosx_universal2<br/>cp314t-macosx_arm64 | cp314-win_amd64<br/>cp314-win32<br/>cp314-win_arm64<br><br>cp314t-win_amd64<br/>cp314t-win32<br/>cp314t-win_arm64 | cp314-manylinux_x86_64<br/>cp314-manylinux_i686<br/>cp314-musllinux_x86_64<br/>cp314-musllinux_i686<br><br>cp314t-manylinux_x86_64<br/>cp314t-manylinux_i686<br/>cp314t-musllinux_x86_64<br/>cp314t-musllinux_i686 | cp314-manylinux_aarch64<br/>cp314-manylinux_ppc64le<br/>cp314-manylinux_s390x<br/>cp314-manylinux_armv7l<br/>cp314-manylinux_riscv64<br/>cp314-musllinux_aarch64<br/>cp314-musllinux_ppc64le<br/>cp314-musllinux_s390x<br/>cp314-musllinux_armv7l<br/>cp314-musllinux_riscv64<br><br>cp314t-manylinux_aarch64<br/>cp314t-manylinux_ppc64le<br/>cp314t-manylinux_s390x<br/>cp314t-manylinux_armv7l<br/>cp314t-manylinux_riscv64<br/>cp314t-musllinux_aarch64<br/>cp314t-musllinux_ppc64le<br/>cp314t-musllinux_s390x<br/>cp314t-musllinux_armv7l<br/>cp314t-musllinux_riscv64 | cp314-android_arm64_v8a<br/>cp314-android_x86_64 | cp314-ios_arm64_iphoneos<br/>cp314-ios_arm64_iphonesimulator<br/>cp314-ios_x86_64_iphonesimulator | cp314-pyodide_wasm32 |
-| Python 3.15   | cp315-macosx_x86_64<br/>cp315-macosx_universal2<br/>cp315-macosx_arm64<br><br>cp315t-macosx_x86_64<br/>cp315t-macosx_universal2<br/>cp315t-macosx_arm64 | cp315-win_amd64<br/>cp315-win32<br/>cp315-win_arm64<br><br>cp315t-win_amd64<br/>cp315t-win32<br/>cp315t-win_arm64 | cp315-manylinux_x86_64<br/>cp315-manylinux_i686<br/>cp315-musllinux_x86_64<br/>cp315-musllinux_i686<br><br>cp315t-manylinux_x86_64<br/>cp315t-manylinux_i686<br/>cp315t-musllinux_x86_64<br/>cp315t-musllinux_i686 | cp315-manylinux_aarch64<br/>cp315-manylinux_ppc64le<br/>cp315-manylinux_s390x<br/>cp315-manylinux_armv7l<br/>cp315-manylinux_riscv64<br/>cp315-musllinux_aarch64<br/>cp315-musllinux_ppc64le<br/>cp315-musllinux_s390x<br/>cp315-musllinux_armv7l<br/>cp315-musllinux_riscv64<br><br>cp315t-manylinux_aarch64<br/>cp315t-manylinux_ppc64le<br/>cp315t-manylinux_s390x<br/>cp315t-manylinux_armv7l<br/>cp315t-manylinux_riscv64<br/>cp315t-musllinux_aarch64<br/>cp315t-musllinux_ppc64le<br/>cp315t-musllinux_s390x<br/>cp315t-musllinux_armv7l<br/>cp315t-musllinux_riscv64 | cp315-android_arm64_v8a<br/>cp315-android_x86_64 | cp315-ios_arm64_iphoneos<br/>cp315-ios_arm64_iphonesimulator<br/>cp315-ios_x86_64_iphonesimulator |                      |
+| Python 3.15   | cp315-macosx_x86_64<br/>cp315-macosx_universal2<br/>cp315-macosx_arm64<br><br>cp315t-macosx_x86_64<br/>cp315t-macosx_universal2<br/>cp315t-macosx_arm64 | cp315-win_amd64<br/>cp315-win32<br/>cp315-win_arm64<br><br>cp315t-win_amd64<br/>cp315t-win32<br/>cp315t-win_arm64 | cp315-manylinux_x86_64<br/>cp315-manylinux_i686<br/>cp315-musllinux_x86_64<br/>cp315-musllinux_i686<br><br>cp315t-manylinux_x86_64<br/>cp315t-manylinux_i686<br/>cp315t-musllinux_x86_64<br/>cp315t-musllinux_i686 | cp315-manylinux_aarch64<br/>cp315-manylinux_ppc64le<br/>cp315-manylinux_s390x<br/>cp315-manylinux_armv7l<br/>cp315-manylinux_riscv64<br/>cp315-musllinux_aarch64<br/>cp315-musllinux_ppc64le<br/>cp315-musllinux_s390x<br/>cp315-musllinux_armv7l<br/>cp315-musllinux_riscv64<br><br>cp315t-manylinux_aarch64<br/>cp315t-manylinux_ppc64le<br/>cp315t-manylinux_s390x<br/>cp315t-manylinux_armv7l<br/>cp315t-manylinux_riscv64<br/>cp315t-musllinux_aarch64<br/>cp315t-musllinux_ppc64le<br/>cp315t-musllinux_s390x<br/>cp315t-musllinux_armv7l<br/>cp315t-musllinux_riscv64 | cp315-android_arm64_v8a<br/>cp315-android_x86_64 | cp315-ios_arm64_iphoneos<br/>cp315-ios_arm64_iphonesimulator<br/>cp315-ios_x86_64_iphonesimulator | cp315-pyodide_wasm32 |
 | PyPy3.9 v7.3  | pp39-macosx_x86_64<br/>pp39-macosx_arm64                               | pp39-win_amd64                                      | pp39-manylinux_x86_64<br/>pp39-manylinux_i686                                                       | pp39-manylinux_aarch64                                                                                                                                                                                                                                                        |                                                  |                                                                                                   |                      |
 | PyPy3.10 v7.3 | pp310-macosx_x86_64<br/>pp310-macosx_arm64                             | pp310-win_amd64                                     | pp310-manylinux_x86_64<br/>pp310-manylinux_i686                                                     | pp310-manylinux_aarch64                                                                                                                                                                                                                                                       |                                                  |                                                                                                   |                      |
 | PyPy3.11 v7.3 | pp311-macosx_x86_64<br/>pp311-macosx_arm64                             | pp311-win_amd64                                     | pp311-manylinux_x86_64<br/>pp311-manylinux_i686                                                     | pp311-manylinux_aarch64                                                                                                                                                                                                                                                       |                                                  |                                                                                                   |                      |
@@ -357,13 +357,11 @@ values are:
 - `cpython-prerelease`: Enables beta versions of Pythons if any are available
-  (May-July, approximately).
+  (May-July, approximately). This also covers Pyodide versions built against a
  beta CPython, which is the case for the current Pyodide prerelease.
 - `pypy`: Enable PyPy.
 - `pypy-eol`: Enable PyPy versions that have passed end of life (if still available).
 - `graalpy`: Enable GraalPy.
 - `pyodide-prerelease`: Pyodide versions that haven't released yet, if one is
  available. Safe if you are shipping a site with an early build, not for
  general distribution.
 - `pyodide-eol`: Enable Pyodide versions that are no longer the current stable
  release (if still available).
 - `all`: Enable all of the above.
@@ -67,8 +67,8 @@ ref: working-examples
 | [google neuroglancer][]           | ![github icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | WebGL-based viewer for volumetric data |
 | [Parselmouth][]                   | ![github icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | A Python interface to the Praat software package, using pybind11, C++17 and CMake, with the core Praat static library built only once and shared between wheels. |
 | [H3-py][]                         | ![github icon][] | ![apple icon][] ![linux icon][] ![windows icon][] | Python bindings for H3, a hierarchical hexagonal geospatial indexing system |
 | [AutoPy][]                        | ![travisci icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | Includes a Windows Travis build. |
 | [time-machine][]                  | ![github icon][] | ![apple icon][] ![linux icon][] ![windows icon][] | Time mocking library using only the CPython C API. |
 | [AutoPy][]                        | ![travisci icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | Includes a Windows Travis build. |
 | [DeepForest][]                    | ![github icon][] | ![apple icon][] ![linux icon][] ![windows icon][] | An Efficient, Scalable and Optimized Python Framework for Deep Forest (2021.2.1) |
 | [mosec][]                         | ![github icon][] | ![linux icon][] ![apple icon][] | A machine learning model serving framework powered by Rust |
 | [Picologging][]                   | ![github icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | A high-performance logging library for Python. |
@@ -95,8 +95,8 @@ ref: working-examples
 | [power-grid-model][]              | ![github icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | Python/C++ library for distribution power system analysis |
 | [iDynTree][]                      | ![github icon][] | ![linux icon][] | Uses manylinux_2_24 |
 | [TgCrypto][]                      | ![travisci icon][] | ![windows icon][] ![apple icon][] ![linux icon][] | Includes a Windows Travis build. |
 | [streaming-form-data][]           | ![github icon][] | ![apple icon][] ![linux icon][] ![windows icon][] | Streaming parser for multipart/form-data written in Cython |
 | [Imagecodecs (fork)][]            | ![azurepipelines icon][] | ![apple icon][] ![linux icon][] | Over 20 external dependencies in compiled libraries, custom docker image, `libomp`, `openblas` and `install_name_tool` for macOS. |
 | [streaming-form-data][]           | ![github icon][] | ![apple icon][] ![linux icon][] ![windows icon][] | Streaming parser for multipart/form-data written in Cython |
 | [pybase64][]                      | ![github icon][] | ![windows icon][] ![apple icon][] ![linux icon][] ![android icon][] ![ios icon][] ![pyodide icon][] | setuptools backend with custom CMake step for external sources. SBOM embedded via a custom repair step. |
 | [boost-histogram][]               | ![github icon][] ![travisci icon][] | ![windows icon][] ![apple icon][] ![linux icon][] ![pyodide icon][] | Supports full range of wheels, including PyPy and alternate archs. |
 | [bx-python][]                     | ![travisci icon][] | ![apple icon][] ![linux icon][] | A library that includes Cython extensions. |
@@ -178,8 +178,8 @@ ref: working-examples
 [google neuroglancer]: https://github.com/google/neuroglancer
 [Parselmouth]: https://github.com/YannickJadoul/Parselmouth
 [H3-py]: https://github.com/uber/h3-py
 [AutoPy]: https://github.com/autopilot-rs/autopy
 [time-machine]: https://github.com/adamchainz/time-machine
 [AutoPy]: https://github.com/autopilot-rs/autopy
 [DeepForest]: https://github.com/LAMDA-NJU/Deep-Forest
 [mosec]: https://github.com/mosecorg/mosec
 [Picologging]: https://github.com/microsoft/picologging
@@ -206,8 +206,8 @@ ref: working-examples
 [power-grid-model]: https://github.com/PowerGridModel/power-grid-model
 [iDynTree]: https://github.com/robotology/idyntree
 [TgCrypto]: https://github.com/pyrogram/tgcrypto
 [streaming-form-data]: https://github.com/siddhantgoel/streaming-form-data
 [Imagecodecs (fork)]: https://github.com/czaki/imagecodecs_build
 [streaming-form-data]: https://github.com/siddhantgoel/streaming-form-data
 [pybase64]: https://github.com/mayeut/pybase64
 [boost-histogram]: https://github.com/scikit-hep/boost-histogram
 [bx-python]: https://github.com/bxlab/bx-python
@@ -6,7 +6,7 @@ jobs:
    - bash: |
        set -o errexit
        python3 -m pip install --upgrade pip
-        pip3 install cibuildwheel==4.1.1
+        pip3 install cibuildwheel==4.2.0
      displayName: Install dependencies
    - bash: cibuildwheel --output-dir wheelhouse .
      displayName: Build wheels
@@ -20,7 +20,7 @@ jobs:
    - bash: |
        set -o errexit
        python3 -m pip install --upgrade pip
-        python3 -m pip install cibuildwheel==4.1.1
+        python3 -m pip install cibuildwheel==4.2.0
      displayName: Install dependencies
    - bash: cibuildwheel --output-dir wheelhouse .
      displayName: Build wheels
@@ -34,7 +34,7 @@ jobs:
    - bash: |
        set -o errexit
        python -m pip install --upgrade pip
-        pip install cibuildwheel==4.1.1
+        pip install cibuildwheel==4.2.0
      displayName: Install dependencies
    - bash: cibuildwheel --output-dir wheelhouse .
      displayName: Build wheels
@@ -11,7 +11,7 @@ jobs:
      - run:
          name: Build the Linux wheels.
          command: |
-            python3 -m pip install --user cibuildwheel==4.1.1
+            python3 -m pip install --user cibuildwheel==4.2.0
            cibuildwheel --output-dir wheelhouse
      - store_artifacts:
          path: wheelhouse/
@@ -28,7 +28,7 @@ jobs:
      - run:
          name: Build the Linux aarch64 wheels.
          command: |
-            python3 -m pip install --user cibuildwheel==4.1.1
+            python3 -m pip install --user cibuildwheel==4.2.0
            python3 -m cibuildwheel --output-dir wheelhouse
      - store_artifacts:
          path: wheelhouse/
@@ -44,7 +44,7 @@ jobs:
          name: Build the OS X wheels.
          command: |
            sudo softwareupdate --install-rosetta --agree-to-license  # for x86_64/universal2 tests
-            pip3 install cibuildwheel==4.1.1
+            pip3 install cibuildwheel==4.2.0
            cibuildwheel --output-dir wheelhouse
      - store_artifacts:
          path: wheelhouse/
@@ -53,7 +53,7 @@ jobs:
          persist-credentials: false
      - name: Build wheels
-        uses: pypa/cibuildwheel@v4.1.1
+        uses: pypa/cibuildwheel@v4.2.0
        env:
          CIBW_PLATFORM: ${{ matrix.platform || 'auto' }}
          CIBW_ARCHS: ${{ matrix.archs || 'auto' }}
@@ -17,7 +17,7 @@ jobs:
          persist-credentials: false
      - name: Build wheels
-        uses: pypa/cibuildwheel@v4.1.1
+        uses: pypa/cibuildwheel@v4.2.0
        # env:
        #   CIBW_SOME_OPTION: value
        #   ...
@@ -17,7 +17,7 @@ jobs:
          persist-credentials: false
      - name: Build wheels
-        run: pipx run cibuildwheel==4.1.1
+        run: pipx run cibuildwheel==4.2.0
      - uses: actions/upload-artifact@v4
        with:
@@ -23,7 +23,7 @@ jobs:
          platforms: all
      - name: Build wheels
-        uses: pypa/cibuildwheel@v4.1.1
+        uses: pypa/cibuildwheel@v4.2.0
        env:
          # configure cibuildwheel on Linux to build native archs ('auto'),
          # and to split the remaining architectures between the x86_64 and
@@ -12,7 +12,7 @@ linux:
    DOCKER_TLS_CERTDIR: ""
  script:
    - curl -sSL https://get.docker.com/ | sh
-    - python -m pip install cibuildwheel==4.1.1
+    - python -m pip install cibuildwheel==4.2.0
    - cibuildwheel --output-dir wheelhouse
  artifacts:
    paths:
@@ -23,7 +23,7 @@ windows:
  before_script:
    - choco install python -y --allow-downgrade --version 3.12.4
    - choco install git.install -y
-    - py -m pip install cibuildwheel==4.1.1
+    - py -m pip install cibuildwheel==4.2.0
  script:
    - py -m cibuildwheel --output-dir wheelhouse --platform windows
  artifacts:
@@ -35,7 +35,7 @@ windows:
 macos:
  image: macos-14-xcode-15
  before_script:
-    - python3 -m pip install cibuildwheel==4.1.1
+    - python3 -m pip install cibuildwheel==4.2.0
  script:
    - python3 -m cibuildwheel --output-dir wheelhouse
  artifacts:
@@ -14,7 +14,7 @@ linux:
    - curl -sSL https://get.docker.com/ | sh
    # Warning: This is extremely slow, be careful with how many wheels you build
    - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
-    - python -m pip install cibuildwheel==4.1.1
+    - python -m pip install cibuildwheel==4.2.0
    # Assuming your CI runner's default architecture is x86_64...
    - cibuildwheel --output-dir wheelhouse --platform linux --archs aarch64
  artifacts:
@@ -70,18 +70,21 @@ def tests(session: nox.Session) -> None:
 # GraalPy (matching `graalpy_marker`) gets `held`, everything else
 # (`other_marker`) tracks the freshly compiled version.
 GRAALPY_HELD_BACK = (
-    # Newer pip breaks GraalPy on Windows.
+    # Newer pip breaks GraalPy on macOS and Windows.
    {
        "package": "pip",
-        "held": "26.0.1",
+        "held": ("26.1.2", "26.0.1"),
-        "graalpy_marker": 'implementation_name == "graalpy" and platform_system == "Windows"',
+        "graalpy_marker": (
-        "other_marker": 'implementation_name != "graalpy" or platform_system != "Windows"',
+            'implementation_name == "graalpy" and platform_system != "Windows"',
            'implementation_name == "graalpy" and platform_system == "Windows"',
        ),
        "other_marker": 'implementation_name != "graalpy"',
    },
    # filelock >=3.30 imports errno.ENOTSUP, which GraalPy lacks (fix due ~2026-08).
    {
        "package": "filelock",
-        "held": "3.29.7",
+        "held": ("3.29.7",),
-        "graalpy_marker": 'implementation_name == "graalpy"',
+        "graalpy_marker": ('implementation_name == "graalpy"',),
        "other_marker": 'implementation_name != "graalpy"',
    },
 )
@@ -90,11 +93,15 @@ GRAALPY_HELD_BACK = (
 def _pin_graalpy_workarounds(output_file: Path) -> None:
    text = output_file.read_text()
    for pin in GRAALPY_HELD_BACK:
        assert isinstance(pin["package"], str)
        package = re.escape(pin["package"])
        graalpy_pins = "\n".join(
            f"{pin['package']}=={pin['held'][i]}; {pin['graalpy_marker'][i]}"
            for i in range(len(pin["held"]))
        )
        text = re.sub(
            rf"^{package}==(?P<version>[^\s;]+)$",
-            f"{pin['package']}==\\g<version>; {pin['other_marker']}\n"
+            f"{pin['package']}==\\g<version>; {pin['other_marker']}\n{graalpy_pins}",
            f"{pin['package']}=={pin['held']}; {pin['graalpy_marker']}",
            text,
            flags=re.MULTILINE,
        )
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 [project]
 name = "cibuildwheel"
-version = "4.1.1"
+version = "4.2.0"
 description = "Build Python wheels on CI with minimal configuration."
 readme = "README.md"
 license = "BSD-2-Clause"
@@ -54,7 +54,7 @@ def test_abi3(tmp_path: Path) -> None:
            "CIBW_BUILD": (
                "cp314-*"
                if utils.get_platform() == "pyodide"
-                else "cp39-* cp310-* pp310-* gp312_250-* cp312-* cp314t-*"
+                else "cp39-* cp310-* pp311-* gp312_250-* cp312-* cp314t-*"
            ),
            "CIBW_ENABLE": "all",
        },
@@ -77,7 +77,7 @@ def test_abi3(tmp_path: Path) -> None:
                "cp39-cp39",
                "cp310-abi3",  # <-- ABI3, works with 3.10 and 3.12
                "cp314-cp314t",
-                "pp310-pypy310_pp73",
+                "pp311-pypy311_pp73",
                "graalpy312-graalpy250_312_native",
            ],
        )
@@ -203,7 +203,7 @@ def test_abi_none(tmp_path: Path, capfd: pytest.CaptureFixture[str]) -> None:
            "CIBW_TEST_REQUIRES": "pytest",
            "CIBW_TEST_COMMAND": f"{utils.invoke_pytest()} {{project}}/test",
            # limit the number of builds for test performance reasons
-            "CIBW_BUILD": "cp39-* cp{}{}-* cp314t-* pp310-*".format(*utils.SINGLE_PYTHON_VERSION),
+            "CIBW_BUILD": "cp39-* cp{}{}-* cp314t-* pp311-*".format(*utils.SINGLE_PYTHON_VERSION),
            "CIBW_ENABLE": "all",
        },
    )
@@ -100,63 +100,3 @@ def test_overridden_path(tmp_path: Path, capfd: pytest.CaptureFixture[str]) -> N
    assert "python available on PATH doesn't match our installed instance" in captured.err.replace(
        "venv", "installed"
    )
@pytest.mark.parametrize(
    "build_frontend",
    [
        pytest.param("pip", marks=utils.skip_if_pyodide("No pip for pyodide")),
        pytest.param(
            "build",
            marks=utils.skip_if_pyodide(
                "pyodide doesn't support multiple values for PIP_CONSTRAINT"
            ),
        ),
    ],
 )
 def test_overridden_pip_constraint(tmp_path: Path, build_frontend: str) -> None:
    """
    Verify that users can use PIP_CONSTRAINT to specify a specific version of
    a build-system.requires dependency, by asserting the version of pytz in the
    setup.py.
    """
    project_dir = tmp_path / "project"
    project = test_projects.new_c_project(
        setup_py_add=textwrap.dedent(
            """
            import pytz
            assert pytz.__version__ == "2022.4", f"{pytz.__version__!r} != '2022.4'"
        """
        )
    )
    project.files["pyproject.toml"] = textwrap.dedent(
        """
        [build-system]
        requires = ["setuptools", "pytz"]
        build-backend = "setuptools.build_meta"
    """
    )
    project.generate(project_dir)
    if utils.get_platform() == "linux":
        # put the constraints file in the project directory, so it's available
        # in the docker container
        constraints_file = project_dir / "constraints.txt"
    else:
        constraints_file = tmp_path / "constraints.txt"
    constraints_file.write_text("pytz==2022.4")
    actual_wheels = utils.cibuildwheel_run(
        project_dir,
        add_env={
            "CIBW_BUILD_FRONTEND": build_frontend,
            "PIP_CONSTRAINT": str(constraints_file),
            "CIBW_ENVIRONMENT_LINUX": "PIP_CONSTRAINT=./constraints.txt",
        },
        single_python=True,
    )
    expected_wheels = utils.expected_wheels("spam", "0.1.0", single_python=True)
    assert set(actual_wheels) == set(expected_wheels)
@@ -71,7 +71,9 @@ def test_pyodide_build(tmp_path: Path, use_pyproject_toml: bool) -> None:
    basic_project.generate(project_dir)
    # check for node in 1 case only to reduce CI load
-    add_env = {"CIBW_ENABLE": "pyodide-prerelease"}
+    # cp315 is a Pyodide prerelease embedding a prerelease CPython, so it is
    # gated by `cpython-prerelease`.
    add_env = {"CIBW_ENABLE": "cpython-prerelease"}
    if use_pyproject_toml:
        add_env["CIBW_TEST_COMMAND"] = f"python {{project}}/check_node.py {CIBW_CACHE_PATH}"
@@ -86,6 +88,7 @@ def test_pyodide_build(tmp_path: Path, use_pyproject_toml: bool) -> None:
    expected_wheels = [
        "spam-0.1.0-cp313-cp313-pyemscripten_2025_0_wasm32.whl",
        "spam-0.1.0-cp314-cp314-pyemscripten_2026_0_wasm32.whl",
        "spam-0.1.0-cp315-cp315-pyemscripten_2026_5_wasm32.whl",
    ]
    print("actual_wheels", actual_wheels)
@@ -144,13 +147,14 @@ def test_pyodide_build_and_test(tmp_path: Path, expect_failure: bool) -> None:
            add_env={
                "CIBW_TEST_REQUIRES": "pytest",
                "CIBW_TEST_COMMAND": "python -m pytest {project}",
-                "CIBW_ENABLE": "pyodide-prerelease",
+                "CIBW_ENABLE": "cpython-prerelease",
            },
        )
        # check that the expected wheels are produced
        expected_wheels = [
            "spam-0.1.0-cp313-cp313-pyemscripten_2025_0_wasm32.whl",
            "spam-0.1.0-cp314-cp314-pyemscripten_2026_0_wasm32.whl",
            "spam-0.1.0-cp315-cp315-pyemscripten_2026_5_wasm32.whl",
        ]
        assert set(actual_wheels) == set(expected_wheels)
@@ -278,18 +278,18 @@ def _expected_wheels(
    # To be kept in sync with Python versions for Pyodide identifiers in cibuildwheel/selector.py.
    if platform == "pyodide" and python_abi_tags is None:
-        python_abi_tags = ["cp313-cp313", "cp314-cp314"]
+        python_abi_tags = ["cp313-cp313", "cp314-cp314", "cp315-cp315"]
        if EnableGroup.PyodideEoL in enable_groups:
            python_abi_tags.insert(0, "cp312-cp312")
-    elif (platform == "android" and python_abi_tags is None) or (
+    elif platform in {"android", "ios"} and python_abi_tags is None:
        platform == "ios" and python_abi_tags is None
    ):
        python_abi_tags = [
            "cp313-cp313",
            "cp314-cp314",
            "cp315-cp315",
        ]
        if EnableGroup.CPythonPrerelease in enable_groups:
-            python_abi_tags += ["cp315-cp315"]
+            # python_abi_tags += ["cp316-cp316"]
            ...  # Add cp316 here when available
    elif python_abi_tags is None:
        python_abi_tags = [
            "cp39-cp39",
@@ -299,13 +299,16 @@ def _expected_wheels(
            "cp313-cp313",
            "cp314-cp314",
            "cp314-cp314t",
            "cp315-cp315",
            "cp315-cp315t",
        ]
        if EnableGroup.CPythonPrerelease in enable_groups:
-            python_abi_tags += [
+            # python_abi_tags += [
-                "cp315-cp315",
+            #     "cp316-cp316",
-                "cp315-cp315t",
+            #     "cp316-cp316t",
-            ]
+            # ]
            ...  # Add cp316 here when available
        if EnableGroup.PyPyEoL in enable_groups:
            python_abi_tags += [
@@ -410,6 +413,7 @@ def _expected_wheels(
                "cp312-cp312": ["pyodide_2024_0_wasm32"],
                "cp313-cp313": ["pyemscripten_2025_0_wasm32"],
                "cp314-cp314": ["pyemscripten_2026_0_wasm32"],
                "cp315-cp315": ["pyemscripten_2026_5_wasm32"],
            }.get(python_abi_tag, [])
            if not platform_tags:
@@ -16,6 +16,7 @@ def test_build() -> None:
    assert build_selector("cp312-manylinux_x86_64")
    assert build_selector("cp313-manylinux_x86_64")
    assert build_selector("cp314-manylinux_x86_64")
    assert build_selector("cp315-manylinux_x86_64")
    assert build_selector("pp311-manylinux_x86_64")
    assert build_selector("cp36-manylinux_i686")
    assert build_selector("cp37-manylinux_i686")
@@ -37,6 +38,7 @@ def test_build() -> None:
    assert build_selector("cp312-win_amd64")
    assert build_selector("cp313-win_amd64")
    assert build_selector("cp314-win_amd64")
    assert build_selector("cp315-win_amd64")
    assert not build_selector("pp310-win_amd64")
    assert not build_selector("pp311-win_amd64")
@@ -91,17 +93,6 @@ def test_build_filter_pypy_all() -> None:
    assert build_selector("pp39-manylinux_x86_64")
 # Re-enable when we have Pyodide 3.15 prerelease builds to test against
 # def test_build_filter_pyodide_prerelease() -> None:
 #     build_selector = BuildSelector(
 #         build_config="*",
 #         skip_config="",
 #         enable=frozenset([EnableGroup.PyodidePrerelease]),
 #     )
 #     assert build_selector("cp314-pyodide_wasm32")
 #     assert build_selector("cp315-pyodide_wasm32")
 def test_build_filter_pyodide() -> None:
    build_selector = BuildSelector(
        build_config="*",
@@ -111,6 +102,7 @@ def test_build_filter_pyodide() -> None:
    assert build_selector("cp313-pyodide_wasm32")
    assert build_selector("cp314-pyodide_wasm32")
    assert not build_selector("cp312-pyodide_wasm32")
    assert build_selector("cp315-pyodide_wasm32")
 def test_build_filter_pyodide_eol() -> None:
@@ -122,6 +114,7 @@ def test_build_filter_pyodide_eol() -> None:
    assert build_selector("cp312-pyodide_wasm32")
    assert build_selector("cp313-pyodide_wasm32")
    assert build_selector("cp314-pyodide_wasm32")
    assert build_selector("cp315-pyodide_wasm32")
 def test_skip() -> None:
@@ -1,6 +1,10 @@
 from __future__ import annotations
 import io
 import ssl
 import time
 import urllib.error
 import urllib.request
 import certifi
 import pytest
@@ -9,9 +13,12 @@ from cibuildwheel.util.file import download
 TYPE_CHECKING = False
 if TYPE_CHECKING:
    from collections.abc import Callable, Iterator
    from pathlib import Path
    from typing import Self
 DOWNLOAD_URL = "https://cdn.jsdelivr.net/gh/pypa/cibuildwheel@v1.6.3/requirements-dev.txt"
 PAYLOAD = b"payload"
 def test_download(monkeypatch: pytest.MonkeyPatch, tmp_path: Path) -> None:
@@ -35,3 +42,131 @@ def test_download_bad_ssl_cert_file(monkeypatch: pytest.MonkeyPatch, tmp_path: P
    dest = tmp_path / "file.txt"
    with pytest.raises(ssl.SSLError):
        download(DOWNLOAD_URL, dest)
 def _no_sleep(seconds: float) -> None:
    pass
@pytest.fixture
 def http_error() -> Iterator[Callable[[str, int], urllib.error.HTTPError]]:
    """Build HTTPErrors, and close them, as each one holds a temporary file."""
    errors = []
    def make(url: str, code: int) -> urllib.error.HTTPError:
        error = urllib.error.HTTPError(url, code, "error", {}, io.BytesIO(b""))  # type: ignore[arg-type]
        errors.append(error)
        return error
    yield make
    for error in errors:
        error.close()
 class FakeResponse:
    def __enter__(self) -> Self:
        return self
    def __exit__(self, *args: object) -> None:
        return None
    def read(self) -> bytes:
        return PAYLOAD
@pytest.fixture
 def fake_network(
    monkeypatch: pytest.MonkeyPatch,
 ) -> Callable[[int], tuple[list[str], list[float]]]:
    """Fail the first ``failures`` downloads, recording attempts and sleeps."""
    def setup(failures: int) -> tuple[list[str], list[float]]:
        attempts: list[str] = []
        sleeps: list[float] = []
        def fake_urlopen(url: str, context: object = None) -> FakeResponse:  # noqa: ARG001
            attempts.append(url)
            if len(attempts) <= failures:
                msg = "temporary DNS failure"
                raise OSError(msg)
            return FakeResponse()
        monkeypatch.setattr(urllib.request, "urlopen", fake_urlopen)
        monkeypatch.setattr(time, "sleep", sleeps.append)
        return attempts, sleeps
    return setup
 def test_download_retries_transient_failures(
    fake_network: Callable[[int], tuple[list[str], list[float]]], tmp_path: Path
 ) -> None:
    attempts, sleeps = fake_network(3)
    dest = tmp_path / "file.txt"
    download(DOWNLOAD_URL, dest)
    assert dest.read_bytes() == PAYLOAD
    assert len(attempts) == 4
    # the wait must grow, so that a long outage is survivable
    assert sleeps == sorted(sleeps)
    assert sleeps[-1] > sleeps[0]
 def test_download_backoff_covers_a_minute_outage(
    fake_network: Callable[[int], tuple[list[str], list[float]]], tmp_path: Path
 ) -> None:
    _, sleeps = fake_network(99)
    dest = tmp_path / "file.txt"
    with pytest.raises(OSError, match="temporary DNS failure"):
        download(DOWNLOAD_URL, dest)
    assert sum(sleeps) >= 60
@pytest.mark.parametrize("code", [400, 404, 410])
 def test_download_does_not_retry_client_errors(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
    code: int,
    http_error: Callable[[str, int], urllib.error.HTTPError],
 ) -> None:
    """A bad URL is not going to fix itself, so report it at once."""
    attempts: list[str] = []
    def fake_urlopen(url: str, context: object = None) -> FakeResponse:  # noqa: ARG001
        attempts.append(url)
        raise http_error(url, code)
    monkeypatch.setattr(urllib.request, "urlopen", fake_urlopen)
    monkeypatch.setattr(time, "sleep", _no_sleep)
    with pytest.raises(urllib.error.HTTPError):
        download(DOWNLOAD_URL, tmp_path / "file.txt")
    assert len(attempts) == 1
@pytest.mark.parametrize("code", [500, 503])
 def test_download_retries_server_errors(
    monkeypatch: pytest.MonkeyPatch,
    tmp_path: Path,
    code: int,
    http_error: Callable[[str, int], urllib.error.HTTPError],
 ) -> None:
    attempts: list[str] = []
    def fake_urlopen(url: str, context: object = None) -> FakeResponse:  # noqa: ARG001
        attempts.append(url)
        if len(attempts) == 1:
            raise http_error(url, code)
        return FakeResponse()
    monkeypatch.setattr(urllib.request, "urlopen", fake_urlopen)
    monkeypatch.setattr(time, "sleep", _no_sleep)
    download(DOWNLOAD_URL, tmp_path / "file.txt")
    assert len(attempts) == 2
@@ -97,9 +97,11 @@ def test_linux_container_split(tmp_path: Path, monkeypatch: pytest.MonkeyPatch)
        "cp313-manylinux_x86_64",
        "cp314-manylinux_x86_64",
        "cp314t-manylinux_x86_64",
        "cp315-manylinux_x86_64",
        "cp315t-manylinux_x86_64",
    ]
-    assert before_alls(build_steps[3]) == [""] * 4
+    assert before_alls(build_steps[3]) == [""] * 6
-    assert container_engines(build_steps[3]) == [default_container_engine] * 4
+    assert container_engines(build_steps[3]) == [default_container_engine] * 6
 def test_package_dir_outside_working_directory_raises_configuration_error(
@@ -13,7 +13,7 @@ from cibuildwheel.__main__ import main
 from cibuildwheel.oci_container import OCIPlatform
 from cibuildwheel.util import file
-DEFAULT_IDS = {"cp39", "cp310", "cp311", "cp312", "cp313", "cp314", "cp314t"}
+DEFAULT_IDS = {"cp39", "cp310", "cp311", "cp312", "cp313", "cp314", "cp314t", "cp315", "cp315t"}
 ALL_IDS = DEFAULT_IDS | {"pp39", "pp310", "pp311", "gp312_250"}
@@ -155,6 +155,8 @@ before-all = "true"
            "cp313",
            "cp314",
            "cp314t",
            "cp315",
            "cp315t",
            "pp39",
            "pp310",
            "pp311",
@@ -176,6 +178,8 @@ before-all = "true"
            "cp313",
            "cp314",
            "cp314t",
            "cp315",
            "cp315t",
            "pp39",
            "pp310",
            "pp311",
@@ -143,6 +143,65 @@ def test_overrides_invalid_inherit_value(validator: validate_pyproject.api.Valid
        validator(example)
 def test_pyodide_build_frontend(validator: validate_pyproject.api.Validator) -> None:
    """
    pyodide-build is accepted anywhere the frontend can be set, as an override
    or a global value can apply to pyodide builds only.
    """
    example = tomllib.loads(
        """
        [tool.cibuildwheel]
        build-frontend = "pyodide-build"
        [tool.cibuildwheel.pyodide]
        build-frontend = { name = "pyodide-build", args = ["--some-arg"] }
        [[tool.cibuildwheel.overrides]]
        select = "*pyodide*"
        build-frontend = "pyodide-build; args: --some-arg"
        """
    )
    assert validator(example) is not None
@pytest.mark.parametrize("frontend", ['"uv"', '"build; args: --some-arg"', '{ name = "pip" }'])
 def test_pyodide_bad_build_frontend(
    validator: validate_pyproject.api.Validator, frontend: str
 ) -> None:
    """
    The pyodide table only accepts the pyodide-build frontend.
    """
    example = tomllib.loads(
        f"""
        [tool.cibuildwheel.pyodide]
        build-frontend = {frontend}
        """
    )
    with pytest.raises(validate_pyproject.error_reporting.ValidationError):
        validator(example)
@pytest.mark.parametrize("platform", ["linux", "macos", "windows", "ios", "android"])
@pytest.mark.parametrize("frontend", ["pyodide-build", "pyodide-build; args: --some-arg"])
 def test_bad_pyodide_build_frontend(
    validator: validate_pyproject.api.Validator, platform: str, frontend: str
 ) -> None:
    """
    Only the pyodide table accepts the pyodide-build frontend.
    """
    example = tomllib.loads(
        f"""
        [tool.cibuildwheel.{platform}]
        build-frontend = "{frontend}"
        """
    )
    with pytest.raises(validate_pyproject.error_reporting.ValidationError):
        validator(example)
 def test_docs_examples(validator: validate_pyproject.api.Validator) -> None:
    """
    Parse out all the configuration examples, build valid TOML out of them, and
Author	SHA1	Message	Date
Henry Schreiner	1828c10ab3	Bump version: v4.2.0	2026-08-04 22:23:12 -04:00
cibuildwheel-bot[bot]andcibuildwheel-bot[bot] <83877280+cibuildwheel-bot[bot]@users.noreply.github.com>	1ed6c225c9	[Bot] Update dependencies (#2960 ) Update dependencies Co-authored-by: cibuildwheel-bot[bot] <83877280+cibuildwheel-bot[bot]@users.noreply.github.com>	2026-08-04 22:19:16 -04:00
Matthieu Darbois	92e2145d80	feat: Python 3.15 build by default (#2944 )	2026-08-04 20:26:00 -04:00
cibuildwheel-bot[bot]andcibuildwheel-bot[bot] <83877280+cibuildwheel-bot[bot]@users.noreply.github.com>	3568a1cb9e	[Bot] Update dependencies (#2952 ) Update dependencies Co-authored-by: cibuildwheel-bot[bot] <83877280+cibuildwheel-bot[bot]@users.noreply.github.com>	2026-08-04 19:46:48 -04:00
Hood Chathamandpre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>	03cefa35ab	feat: add pyodide_315 support (#2958 ) * Add pyodide_315 support Guarded by cpython_prerelease for the moment. * Update * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update constraints to pyodide-build 0.39.0 * Update to 315.0.0a2 * Remove example versions --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>	2026-08-04 17:41:22 -04:00
Matthieu Darbois	73417aefe5	fix(tests): delete test_overridden_pip_constraint (#2957 ) * fix: test_overridden_pip_constraint with pip>=26.2 * fix(tests): delete test_overridden_pip_constraint This test is not needed since #2583 and will fail with pip>=26.2	2026-08-03 10:20:35 -04:00
Matthieu Darbois	3c603e4a4a	fix: pin pip on GraalPy (#2955 )	2026-08-03 06:58:53 +02:00
Matthieu Darbois	f0b2156470	chore: use pp311 for test_abi3 (#2956 ) this should be faster on Linux when PyPy is not enabled as a whole in CI	2026-08-03 06:58:36 +02:00
Henry Schreiner	ffd2e18240	fix(schema): default is fine for pyodide too (#2951 )	2026-08-02 07:49:12 -04:00
dependabot[bot]anddependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	dca67ee350	chore(deps): bump the actions group with 5 updates (#2954 ) Bumps the actions group with 5 updates: \| Package \| From \| To \| \| --- \| --- \| --- \| \| [actions/setup-python](https://github.com/actions/setup-python) \| `6.3.0` \| `7.0.0` \| \| [astral-sh/setup-uv](https://github.com/astral-sh/setup-uv) \| `8.3.2` \| `9.0.0` \| \| [pypa/gh-action-pypi-publish](https://github.com/pypa/gh-action-pypi-publish) \| `1.14.0` \| `1.14.1` \| \| [j178/prek-action](https://github.com/j178/prek-action) \| `2.0.5` \| `2.0.6` \| \| [zizmorcore/zizmor-action](https://github.com/zizmorcore/zizmor-action) \| `0.6.0` \| `0.6.1` \| Updates `actions/setup-python` from 6.3.0 to 7.0.0 - [Release notes](https://github.com/actions/setup-python/releases) - [Commits](https://github.com/actions/setup-python/compare/ece7cb06caefa5fff74198d8649806c4678c61a1...5fda3b95a4ea91299a34e894583c3862153e4b97) Updates `astral-sh/setup-uv` from 8.3.2 to 9.0.0 - [Release notes](https://github.com/astral-sh/setup-uv/releases) - [Commits](https://github.com/astral-sh/setup-uv/compare/11f9893b081a58869d3b5fccaea48c9e9e46f990...c771a70e6277c0a99b617c7a806ffedaca235ff9) Updates `pypa/gh-action-pypi-publish` from 1.14.0 to 1.14.1 - [Release notes](https://github.com/pypa/gh-action-pypi-publish/releases) - [Commits](https://github.com/pypa/gh-action-pypi-publish/compare/cef221092ed1bacb1cc03d23a2d87d1d172e277b...ba38be9e461d3875417946c167d0b5f3d385a247) Updates `j178/prek-action` from 2.0.5 to 2.0.6 - [Release notes](https://github.com/j178/prek-action/releases) - [Commits](https://github.com/j178/prek-action/compare/e98a699c41eb69ab013a45817a0406469a748f8d...5337cb91e0fa35a7ff31b9ca345126d8bbbcdf16) Updates `zizmorcore/zizmor-action` from 0.6.0 to 0.6.1 - [Release notes](https://github.com/zizmorcore/zizmor-action/releases) - [Commits](https://github.com/zizmorcore/zizmor-action/compare/6599ee8b7a49aef6a770f63d261d214911a7ce02...6fc4b006235f201fdab3722e17240ab420d580e5) --- updated-dependencies: - dependency-name: actions/setup-python dependency-version: 7.0.0 dependency-type: direct:production update-type: version-update:semver-major dependency-group: actions - dependency-name: astral-sh/setup-uv dependency-version: 9.0.0 dependency-type: direct:production update-type: version-update:semver-major dependency-group: actions - dependency-name: pypa/gh-action-pypi-publish dependency-version: 1.14.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: actions - dependency-name: j178/prek-action dependency-version: 2.0.6 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: actions - dependency-name: zizmorcore/zizmor-action dependency-version: 0.6.1 dependency-type: direct:production update-type: version-update:semver-patch dependency-group: actions ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-08-02 07:04:49 +02:00
Henry Schreiner	b2533d3833	fix: survive short network outages when downloading (#2953 ) * fix: use exponential backoff when a download fails The retry used a flat 3 second wait over 3 attempts, which covers only about 6 seconds of downtime. A CI runner lost DNS for approximately a minute and the PyPy download failed. Wait 3, 6, 12, 24, then 48 seconds over 6 attempts. Assisted-by: ClaudeCode:claude-opus-5 * ci: raise the uv HTTP retry count uv stops after 3 retries, which was too few when a runner lost DNS for approximately a minute during a test run. Assisted-by: ClaudeCode:claude-opus-5 * fix: do not retry a download after a client error A bad URL will not fix itself, and the longer backoff made the wait before the report about 93 seconds. Report 4xx responses at once, and keep retrying 5xx. Assisted-by: ClaudeCode:claude-opus-5	2026-08-02 07:01:14 +02:00
Agriya Khetarpal	f05f72d4c1	Update to Pyodide 314.0.3 (#2949 )	2026-07-25 22:56:28 -04:00
dependabot[bot]	1e4eb55ef2	chore(deps): bump the actions group with 2 updates (#2948 ) Signed-off-by: dependabot[bot] <support@github.com>	2026-07-26 02:49:36 +05:30
`@@ -1 +1 @@`
	`default = { version = "21.6.1", url = "https://github.com/pypa/get-virtualenv/releases/download/21.6.1/virtualenv.pyz", sha256 = "32490c6eea415c3a8f44ee112bbef07bc7b70a0aba706672240c6c66d4f7d9cc" }`	`default = { version = "21.7.1", url = "https://github.com/pypa/get-virtualenv/releases/download/21.7.1/virtualenv.pyz", sha256 = "d63ac10e610738c3dcfa51ee0799e6b69ce2964d76cab734542684baf0ed3a5f" }`