Minimum macos system requirement for 3.14.0rc1?

Documentation

The release page for 3.14.0rc1 states a minimum macos version of "macOS 10.13 and later".

Installation of 3.14.0rc1 on macOS 10.13 fails for me. The installer itself states a minimum of macOS 11.

Is macOS 11 to be the new minimum version? If so, the release page seems to need updating.

Many thanks!

Linked PRs

The documentation also has the claim.

See #131751 (review) for the context on macOS 11+ requirement, sounds like maybe 10.15 will be the new requirement.

@ned-deily

Yes, looks like it, the binary has minos: 11.0:

❯ /Library/Frameworks/Python.framework/Versions/3.14/bin/python3.14 --version --version
Python 3.14.0rc1 (v3.14.0rc1:48f88310044, Jul 22 2025, 13:06:29) [Clang 16.0.0 (clang-1600.0.26.6)]

❯ otool -l /Library/Frameworks/Python.framework/Versions/3.14/bin/python3.14
...
/Library/Frameworks/Python.framework/Versions/3.14/bin/python3.14 (architecture x86_64):
Load command 10
      cmd LC_BUILD_VERSION
  cmdsize 32
 platform 1
    minos 11.0
      sdk 15.5
   ntools 1
     tool 3
  version 1115.7.3
...

cc @ned-deily for confirmation.

To update the docs:

gh-137749: Python 3.14 installer is for macOS 10.15 and later #137753

To update the downloads page:

Python 3.14 installer is for macOS 10.15 and later release-tools#269

gh-137749: Python 3.14 installer is for macOS 10.15 and later (#137753)

pythongh-137749: Python 3.14 installer is for macOS 10.15 and later (p…

The min version was reduced to 10.15 in #137211, so we'll use that for 3.14.0 rc2.

See comments in python/release-tools#269: some 3.12 download pages have the wrong macOS version listed. We can check the 3.12 and 3.14 binaries and update the descriptions in the tables.

(Edit: corrected second link)

[3.14] gh-137749: Python 3.14 installer is for macOS 10.15 and later (G…

Just for additional context, the minimum version was also discussed in

gh-100384: Error on unguarded-availability in Darwin builds #128155

The change to the JIT just mirrors that.

Looks like only 3.12.8, 3.12.9, & 3.12.10 need their download table updated to say macOS 10.13 instead of macOS 10.9, after running otool -l /Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12 | grep -A3 -E "LC_VERSION_MIN_MACOSX|minos" on the 3.12.x binaries.

pythongh-137749: Python 3.14 installer is for macOS 10.15 and later (p…

Looks like only 3.12.8, 3.12.9, & 3.12.10

Thanks, I've updated these to read "for macOS 10.13 and later":

And updated 3.14 rc1 to read "for macOS 11 and later":

https://www.python.org/downloads/release/python-3140rc1/

And we have 3.14 rc2 with "for macOS 10.15 and later" which will also be used for the foreseeable 3.14s:

https://www.python.org/downloads/release/python-3140rc2/

I think we're good here now, thanks all!

[3.14] pythongh-137749: Python 3.14 installer is for macOS 10.15 and …

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Minimum macos system requirement for 3.14.0rc1? #137749

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