Bump version: v2.23.4

Author: joerick

README.md

@@ -98,7 +98,7 @@ jobs:
       - uses: actions/setup-python@v5
 
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==2.23.3
+        run: python -m pip install cibuildwheel==2.23.4
 
       - name: Build wheels
         run: python -m cibuildwheel --output-dir wheelhouse
@@ -215,6 +215,12 @@ Changelog
 
 <!-- this section was generated by bin/update_readme_changelog.py -- do not edit manually -->
 
+### v2.23.4
+
+_16 March 2026_
+
+- 🐛 Fix HTTP 429 errors while downloading virtualenv from GitHub blob URLs – uses a https://bootstrap.pypa.io/ URL instead. (#2775)
+
 ### v2.23.3
 
 _26 April 2025_
@@ -244,24 +250,6 @@ _1 March 2025_
 - 🛠 Adopts the beta pypa/manylinux image for armv7l builds (#2269 via #2281)
 - 🛠 Dependency updates, including Pyodide 0.27 (#2117 and #2281)
 
-### v2.22.0
-
-_23 November 2024_
-
-- 🌟 Added a new `CIBW_ENABLE`/`enable` feature that replaces `CIBW_FREETHREADED_SUPPORT`/`free-threaded-support` and `CIBW_PRERELEASE_PYTHONS` with a system that supports both. In cibuildwheel 3, this will also include a PyPy setting and the deprecated options will be removed. (#2048)
-- 🌟 [Dependency groups](https://peps.python.org/pep-0735/) are now supported for tests. Use `CIBW_TEST_GROUPS`/`test-groups` to specify groups in `[dependency-groups]` for testing. (#2063)
-- 🌟 Support for the experimental Ubuntu-based ARMv7l manylinux image (#2052)
-- ✨ Show a warning when cibuildwheel is run from Python 3.10 or older; cibuildwheel 3.0 will require Python 3.11 or newer as host (#2050)
-- 🐛 Fix issue with stderr interfering with checking the docker version (#2074)
-- 🛠 Python 3.9 is now used in `CIBW_BEFORE_ALL`/`before-all` on linux, replacing 3.8, which is now EoL (#2043)
-- 🛠 Error messages for producing a pure-Python wheel are slightly more informative (#2044)
-- 🛠 Better error when `uname -m` fails on ARM (#2049)
-- 🛠 Better error when repair fails and docs for abi3audit on Windows (#2058)
-- 🛠 Better error when `manylinux-interpreters ensure` fails (#2066)
-- 🛠 Update Pyodide to 0.26.4, and adapt to the unbundled pyodide-build (now 0.29) (#2090)
-- 🛠 Now cibuildwheel uses dependency-groups for development dependencies (#2064, #2085)
-- 📚 Docs updates and tidy ups (#2061, #2067, #2072)
-
 <!-- END bin/update_readme_changelog.py -->
 
 ---

cibuildwheel/__init__.py

@@ -1,3 +1,3 @@
 from __future__ import annotations
 
-__version__ = "2.23.3"
+__version__ = "2.23.4"

docs/changelog.md

@@ -4,6 +4,12 @@ title: Changelog
 
 # Changelog
 
+### v2.23.4
+
+_16 March 2026_
+
+- 🐛 Fix HTTP 429 errors while downloading virtualenv from GitHub blob URLs – uses a https://bootstrap.pypa.io/ URL instead. (#2775)
+
 ### v2.23.3
 
 _26 April 2025_

docs/faq.md

@@ -142,7 +142,7 @@ 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@v2.23.3
+uses: pypa/cibuildwheel@v2.23.4
 ```
 
 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.
@@ -164,7 +164,7 @@ The second option, and the only one that supports other CI systems, is using a `
 
 ```bash
 # requirements-cibw.txt
-cibuildwheel==2.23.3
+cibuildwheel==2.23.4
 ```
 
 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:
@@ -328,7 +328,7 @@ 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==2.23.3 --output-dir wheelhouse
+pipx run cibuildwheel==2.23.4 --output-dir wheelhouse
 pipx run twine upload wheelhouse/*.whl
 ```
 

docs/setup.md

@@ -161,7 +161,7 @@ To build Linux, Mac, and Windows wheels using GitHub Actions, create a `.github/
           - uses: actions/checkout@v4
 
           - name: Build wheels
-            run: pipx run cibuildwheel==2.23.3
+            run: pipx run cibuildwheel==2.23.4
 
           - uses: actions/upload-artifact@v4
             with:
@@ -198,7 +198,7 @@ To build Linux, Mac, and Windows wheels using GitHub Actions, create a `.github/
           - uses: actions/setup-python@v5
 
           - name: Install cibuildwheel
-            run: python -m pip install cibuildwheel==2.23.3
+            run: python -m pip install cibuildwheel==2.23.4
 
           - name: Build wheels
             run: python -m cibuildwheel --output-dir wheelhouse

examples/appveyor-minimal.yml

@@ -9,7 +9,7 @@ environment:
 
 stack: python 3.12
 
-install: python -m pip install cibuildwheel==2.23.3
+install: python -m pip install cibuildwheel==2.23.4
 
 build_script: python -m cibuildwheel --output-dir wheelhouse
 

examples/azure-pipelines-minimal.yml

@@ -6,7 +6,7 @@ jobs:
     - bash: |
         set -o errexit
         python3 -m pip install --upgrade pip
-        pip3 install cibuildwheel==2.23.3
+        pip3 install cibuildwheel==2.23.4
       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==2.23.3
+        python3 -m pip install cibuildwheel==2.23.4
       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==2.23.3
+        pip install cibuildwheel==2.23.4
       displayName: Install dependencies
     - bash: cibuildwheel --output-dir wheelhouse .
       displayName: Build wheels

examples/circleci-minimal.yml

@@ -11,7 +11,7 @@ jobs:
       - run:
           name: Build the Linux wheels.
           command: |
-            python3 -m pip install --user cibuildwheel==2.23.3
+            python3 -m pip install --user cibuildwheel==2.23.4
             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==2.23.3
+            python3 -m pip install --user cibuildwheel==2.23.4
             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 python<=3.8 or x86_64/universal2 tests
-            pip3 install cibuildwheel==2.23.3
+            pip3 install cibuildwheel==2.23.4
             cibuildwheel --output-dir wheelhouse
       - store_artifacts:
           path: wheelhouse/

examples/cirrus-ci-intel-mac.yml

@@ -1,6 +1,6 @@
 build_and_store_wheels: &BUILD_AND_STORE_WHEELS
   install_cibuildwheel_script:
-    - python -m pip install cibuildwheel==2.23.3
+    - python -m pip install cibuildwheel==2.23.4
   run_cibuildwheel_script:
     - cibuildwheel
   wheels_artifacts:

examples/cirrus-ci-minimal.yml

@@ -1,6 +1,6 @@
 build_and_store_wheels: &BUILD_AND_STORE_WHEELS
   install_cibuildwheel_script:
-    - python -m pip install cibuildwheel==2.23.3
+    - python -m pip install cibuildwheel==2.23.4
   run_cibuildwheel_script:
     - cibuildwheel
   wheels_artifacts: