PyPy v8.0.1 release

PyPy v8.0.1: release of python 2.7, 3.11, and 3.12 beta released 2026-09-14¶

The PyPy team is proud to release version 8.0.1 of PyPy after the previous release on Sept 25, 2026. Some problems with buffer memory leaks were fixed, and problems around the new strategy to tie RPython objects to non-managed C PyObject objects were also fixed. The stdlib for 3.11 and 3.12 was updated, as was the vendored libexpat (to 2.8.5). Internally, we now use pytest3.10 rather than 2.9.2.

The release includes three different interpreters:

• PyPy2.7, supporting the syntax and the features of Python 2.7 including the stdlib for CPython 2.7.18+ (the + is for backported security updates)

• PyPy3.11, supporting the syntax and the features of Python 3.11, including the stdlib for CPython 3.11.17. Barring security issues, this will be the last release to support 3.11.

• PyPy3.12, supporting the syntax and features of Python 3.12, including the stdlib for CPython 3.12.15.

The interpreters are based on much the same codebase, thus the triple release.

We recommend updating. You can find links to download the releases here:

https://pypy.org/download.html

We would like to thank our donors for the continued support of the PyPy project. If PyPy is not quite good enough for your needs, we are available for direct consulting work. If PyPy is helping you out, we would love to hear about it and encourage submissions to our blog via a pull request to https://github.com/pypy/pypy.org

We would also like to thank our contributors and encourage new people to join the project. PyPy has many layers and we need help with all of them: bug fixes, PyPy and RPython documentation improvements, or general help with making RPython's JIT even better.

If you are a python library maintainer and use C-extensions, please consider making a CFFI version of your library that would be performant on PyPy. Failing that, PyPy will soon support the cp312-abi3 tag for limited ABI wheels. In any case, cibuildwheel supports building wheels for PyPy.