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GeezerVison is showing www.python.org — Python Release Python 3.15.2

Release date: Oct. 25, 2026

Python 3.15 logo: a purple heart with "3.15" in blue and yellow, flanked by a blue and a yellow snake, with lightning bolts, pink clouds and laurel branches, framed by the release's headline features

This is the second maintenance release of Python 3.15

Python 3.15.2 is an expedited security release and the second maintenance release of 3.15, containing around 130 bugfixes, build improvements and documentation changes from 70 contributors since 3.15.1.

This is an expedited security release to address the compromised eMudhra intermediate CA keys. These keys are now blocked by the ssl module as a last resort against their use. Normal uses of pip, including to upgrade pip itself, are now safe from attacks based on those compromised keys, even if pip hasn't been updated yet.

Security content in this release

  • CVE-2026-115557 gh-160040: Distrust compromised eMudhra intermediate CA keys

  • CVE-2026-114583 gh-160097: Reject links replacing the destination in tarfile.tar_filter

  • gh-160300: Reject cookies with a negative version in http.cookiejar

Full Changelog

macOS

Download macOS installer

Windows

Download Python install manager

Source release

Download XZ compressed source tarball

Version Operating system Description File size Sigstore SBOM SHA-256 checksum
Gzipped source tarball Source release 34.2 MB .sigstore SPDX f74e1db0eabd651cd01e4e2a00201bd41866abe74869ab716f9bf33cbbaa0943
XZ compressed source tarball Source release 26.7 MB .sigstore SPDX 8b5536d280142ecf6cdfe15d12a21ba1c65e300bbf7b28a8d0cdb849575797de
Android embeddable package (aarch64) Android 23.2 MB .sigstore cfd4f0fdaff465ba62ebf3c3df2c8c410d0802fef3f98897082460df704cfef6
Android embeddable package (x86_64) Android 23.6 MB .sigstore e5b46c72295e558991bbe98415ac29bc1448aca35a8e660ddfe017e20305cbf8
iOS XCframework iOS 82.2 MB .sigstore 0f9fc7f61ceb8278a69fc7ec6089aad81789a96fa42f31cfe6d2f5f860d20a62
macOS installer macOS for macOS 10.15 and later 78.1 MB .sigstore 2c6104475535b720b45774c68b0dfc9fcca2235353cf9ff81e05488f89845396
Windows installer (64-bit) Windows Recommended 35.9 MB .sigstore SPDX 06e225a228191b0f4d1dcf6905fbb21bf9f6970d13a2ec63137ab9bee76f15aa
Windows installer (32-bit) Windows 34.3 MB .sigstore SPDX a1040151c8af7a31dcfa3d4da2648040806dfe86050622166cbebc7747f23027
Windows installer (ARM64) Windows 35.2 MB .sigstore SPDX a3957667a6305f0fa4c5ce6c73def927ddcad36190b9e27eb4a04e1a9a153c93
Windows embeddable package (64-bit) Windows 13.1 MB .sigstore SPDX d012f3aa29cf07436dae8aea1fec0fd195c2612a0b059b1f915ae0afb9ad1f62
Windows embeddable package (32-bit) Windows 11.4 MB .sigstore SPDX 8d20269d378040117c9cec11d1ad6c6d17c6b77774424955ee180a0f49c6b41e
Windows embeddable package (ARM64) Windows 12.4 MB .sigstore SPDX 089eae5e8aba8284c2ce59df008c1dc915af46fd9e8b1227e3a7f315211567c9
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