20250612

Upgrades

• setuptools 80.9.0
• CPython 3.13.5

Full Changelog: 2025061...2025061

20250610

Upgrades

• CPython 3.14.0b2

Distribution changes

• Add patch for stable uuid.getnode on 3.13

Full Changelog: 2025060...2025061

20250604

Upgrades

• CPython 3.14.0b1, 3.13.4, 3.12.11, 3.11.13, 3.10.18 and 3.9.23

Full Changelog: 2025052...2025060

20250529

Distribution changes

• Fix the implementation of the workaround mentioned in the previous release notes for third-party packages that incorrectly assume the interpreter is statically linking libpython (#623)
• Disable an unsafe optimization that started applying to the statically-linked interpreter which made e.g. subclasses of str misbehave (#622, see also astral-sh/uv#13610)
• Update the "quirks" documentation page (#625)

Upgrades

• xcb-proto 1.14.1 -> 1.17.0 (#627)

Build system changes

• Remove build support for Linux x86 builds (#626). Note that Linux x86 builds have not actually been done since 2023.
• Remove the need for thexcb Docker image as part of #627
• Remove build support for sccache, which was also unused (#629)

Full Changelog: 2025052...2025052

20250521

Build changes

• Remove various older X11 packages and expand use of xorgproto (#609)

Distribution changes

• Allow the experimental JIT to be enabled at runtime on Python 3.13 and 3.14 on macOS on aarch64 aka Apple Silicon (#544). Linux was added previously in #538 and #543; our macOS compatibility baseline is too old for x86_64 to enable it at the moment.
• Work around third-party packages that (incorrectly) assume the interpreter is dynamically linking libpython (#621). As with the 20250517 release, we are still statically linking libpython into the interpreter for performance and compatibility, and still shipping a dynamic libpython for compatibility with various tools/workflows that expect it, but we have now tweaked the build to increase the compatibility of this configuration.

Full Changelog: 2025051...2025052

20250517

Updates

• CPython 3.14.0a7
• LLVM 21.0.4

Distribution changes

• Include Python 3.14 in published musl distributions
• Include free-threaded Python in published musl distributions
• Statically link libpython into interpreter on Linux (but keep building libpython3.x.so)
• Fix potential filedescriptor leak by not applying -hugify

Full Changelog: 2025040...2025051

20250409

Updates

• CPython 3.13.3
• CPython 3.12.10
• CPython 3.11.12
• CPython 3.10.17
• CPython 3.9.22

Build changes

• Add support for building Python 3.14 on musl (distributions are not yet published)
• Add support for building free-threaded Python on musl (distributions are not yet published)

Full Changelog: 2025031...2025040

20250317

Upgrades

• CPython 3.14.0a6

Distribution changes

• Compile sqlite with FTS3 enhanced query syntax enabled
• Declare the target_cxx value for all targets

Build changes

• Use a mirror for bzip2 to bypass rate limits on downloads
• Cache dependency downloads in CI on Linux

Full Changelog: 2025031...2025031

20250311

Breaking changes

• The musl distributions are now dynamically linked

  Previously, the musl distributions were fully statically linked, which prevented them from being used with extension modules. Now, the musl distributions have a shared libpython and dynamically link musl libc. Similar to the GNU libc distributions, this means that musl libc will need to be installed to use these distributions. These distributions are intended for use on musl Linux distributions, such as Alpine. The minimum required musl version is 1.2.2. The statically linked musl distributions are still available and are tagged with the +static build option, e.g., cpython-3.10.16+20250311-x86_64-unknown-linux-musl-debug+static-full.tar.zst. See #541 for implementation details.

• Windows artifacts with the -shared suffix will no longer be published: this variant became the default in 20240415 and duplicate archives have been published under the -shared suffix for backwards compatibility. Use the equivalent archives without the suffix.

Upgrades

• LLVM 19.1.6 -> 20.1.0

  This upgrade also includes a pair of cherry-picked pull requests (llvm/llvm-project#114990 and llvm/llvm-project#120267) that improve handling of computed gotos; fixing a performance regression in LLVM 19 and enabling BOLT optimizations to work on computed gotos.

Distribution changes

• Allow the experimental JIT to be enabled at runtime on Python 3.13 and 3.14 on Linux: for details, see #538 and #543; for macOS support, see #544

Build system changes

• Populate CXX during builds to avoid calling the system toolchain

Full Changelog: 2025021...2025031

20250212

Upgrades

• OpenSSL 3.0.15 -> 3.0.16
• CPython 3.14.0a4 -> 3.14.0a5

Distribution changes

• Add attestations to remaining release artifacts
• Use an array for cross-platform sed args to avoid unexpected shell expansion; eliminating extraneous .pc files
• Enable the tail call interpreter on 3.14+ clang builds; providing a significant performance improvement

Build system changes

• The Rust dependencies have been updated; see #510 and #515

Full Changelog: 2025020...2025021