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@dependabot dependabot bot commented on behalf of github Sep 17, 2025

Bumps cython from 0.29.37 to 3.1.4.

Release notes

Sourced from cython's releases.

3.1.4

No release notes provided.

3.1.3

No release notes provided.

3.1.2

No release notes provided.

3.1.1

No release notes provided.

3.1.0-1

No release notes provided.

3.1.0

No release notes provided.

3.1.0rc2

No release notes provided.

3.1.0rc1

No release notes provided.

3.1.0b1

No release notes provided.

3.1.0a1

3.1.0 alpha 1 (2024-11-08)

Features added

  • Support for freethreading builds of CPython 3.13 was added. It comes with a new directive freethreading_compatible=True to mark modules as free-threading compatible (Py_mod_gil). https://github.com/cython/cython/issues?q=label%3A"nogil+CPython" Patches by Lysandros Nikolaou and Nathan Goldbaum. (Github issue :issue:6162)

  • Support for monitoring Cython modules via sys.monitoring in CPython 3.13+ was added. For coverage reporting, this needs to be disabled with -DCYTHON_USE_SYS_MONITORING=0 as long as coverage.py does not support sys.monitoring for coverage plugins. (Github issue :issue:6144)

  • Many issues with the Limited C-API were resolved. It is now sufficient to define the macro Py_LIMITED_API to activate the support. https://github.com/cython/cython/issues?q=label%3A%22limited+api%22

  • Support for GraalPython was improved (but is still incomplete).

... (truncated)

Changelog

Sourced from cython's changelog.

3.1.4 (2025-09-16)

Features added

  • Declarations for the new PyUnstable_*() refcounting C-API functions in Py3.14 were added. (Github issue :issue:6836)

Bugs fixed

  • The monitoring code could crash on tracing. (Github issue :issue:7050)

  • Initialising the monitoring code could fail with a CPython exception. See nedbat/coveragepy#1790

  • Optimised integer shifting triggered undefined behaviour in C. (Github issue :issue:7089)

  • Deallocating objects that inherit from external types defined in pxd files could run into an infinite loop. (Github issue :issue:7143)

  • A reference to metaclasses could be leaked on instantiation. (Github issue :issue:7130)

  • (Unlikely) error handling during empty builtin container tests was ineffective. (Github issue :issue:7190)

  • Generated *_api.h files used potentially unknown Cython configuration macros. (Github issue :issue:7108)

  • cythonize() avoids parallel compiler runs on systems using spawn() in multiprocessing. Patch by Marcel Bargull. (Github issue :issue:3262)

  • The @cython.ufunc decorator was missing in type checker stubs. Patch by jayClean. (Github issue :issue:7109)

3.1.3 (2025-08-13)

Bugs fixed

  • Some method calls with 0 or 1 argument failed to use PyObject_VectorCallMethod().

  • Walrus assignments of literal Python integers could generate invalid C code.

... (truncated)

Commits
  • 236e4a3 Build: Update cibuildwheel version to 3.1.4.
  • cb2e2a3 Prepare release of 3.1.4.
  • 4fdb990 Update changelog.
  • fa78291 Remove confusing "optionally" from embedded docs (#7071)
  • 2886cd9 Fix error handling in empty container test (GH-7096)
  • 8993322 Library: Add declarations for new refcounting C-API functions in Py3.14.
  • dc54ef2 Simpify some conditions.
  • 41f985e Bump OS X runner version to "macos-latest" (GH-7041)
  • dd18f11 Disable parallel cythonization for "spawn" start method. (GH-3263)
  • be16c51 Fix a small typo (#7125)
  • Additional commits viewable in compare view

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Bumps [cython](https://github.com/cython/cython) from 0.29.37 to 3.1.4.
- [Release notes](https://github.com/cython/cython/releases)
- [Changelog](https://github.com/cython/cython/blob/master/CHANGES.rst)
- [Commits](cython/cython@0.29.37...3.1.4)

---
updated-dependencies:
- dependency-name: cython
  dependency-version: 3.1.4
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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@dependabot dependabot bot added the 🎋 dependencies Update dependencies label Sep 17, 2025
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