CHANGELOG.md

1 October 2026

• Move all release artifacts to GitHub Releases. Keeping them in the repository is getting too unwieldy.
• Add 3.10.22, 3.11.17, and 3.12.15.

13 August 2026

• Add 3.10.21, 3.11.16, and 3.12.14.

10 June 2026

• Rebuild everything with Visual Studio 2026, mainly to ensure that existing and future Python versions are compatible with this Visual Studio version.

3 March 2026

• Add 3.10.20, 3.11.15, and 3.12.13.

30 December 2025

• build-full-installer-1.patch and build-full-installer-2.patch were identical. Delete build-full-installer-2.patch and renumber the remaining build-full-installer patch files.

10 October 2025

• Add 3.9.24, 3.10.19, 3.11.14, and 3.12.12.

16 September 2025

• Rebuild Python 3.7.13-3.7.17, 3.8.13-3.8.20, and 3.9-3.12 to fix error installing Universal C Runtime (python/cpython#138896).

13 September 2025

• Rebuild Python 3.5-3.6 to include the correct version of vcruntime140.dll in the NuGet and embeddable packages.

7 September 2025

• Remove note that Python 3.5 is no longer possible to build.
• Given that https://svn.python.org/projects/python/externals no longer exists, create https://github.com/adang1345/cpython-source-deps and https://github.com/adang1345/cpython-bin-deps to hold external dependencies that Python 3.5 requires that were never migrated from SVN to GitHub.
• Rebuild Python 3.5 using Visual Studio 2022 and the Windows 11 SDK. Patch the build script to pull some external dependencies from https://github.com/adang1345/cpython-source-deps and https://github.com/adang1345/cpython-bin-deps. Use Windows SDK 10.0.15063.468 to build the Tcl/Tk external dependency.
• Update patch for Python 3.6 to use Windows SDK 10.0.15063.468 when building the Tcl/Tk external dependency instead of downloading a pre-built version. Rebuild Python 3.6.

2 September 2025

• Remove index lines from patch files. They are unnecessary.

29 August 2025

• Rebuild Python 3.6+ using Visual Studio 2022 and the Windows 11 SDK. Update patches to fix any incompatibilities with the newer compiler and SDK.
• Add note that Python 3.5 is no longer possible to build.
• Change the note to build from a path without spaces. This requirement applies to versions under 3.9 only and not all versions.

Previous

• This project's history was not recorded until 29 August 2025.