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raise the osx-arm64 macOS floor to 13.3 - #567

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xkong-anaconda wants to merge 2 commits into
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PKG-13634-osx-floor-13.3
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xkong-anaconda wants to merge 2 commits into
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PKG-13634-osx-floor-13.3

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@xkong-anaconda

@xkong-anaconda xkong-anaconda commented Aug 31, 2026 •

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aggregate - raise the osx-arm64 macOS floor to 13.3

Destination channel: defaults

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Explanation of changes:

  • osx-arm64 floor 12.1 → 13.3.
  • Build SDK 12.1 → 14.5
  • Set OSX_SDK_VER: 14.5 so the stdlib('c') activation selects the 14.5 SDK instead of deriving it from the deployment target

Comment thread conda_build_config.yaml
Bump c_stdlib_version, macos_min_version and MACOSX_DEPLOYMENT_TARGET for
osx-arm64 from 12.1 to 13.3, and move CONDA_BUILD_SYSROOT from the 12.1 SDK
to the 14.5 SDK.

The build SDK and the deployment target are intentionally decoupled: 14.5 is
present on the workers and already used in production by qtbase, qtdeclarative
and qtsvg, while the run floor stays at 13.3 so the Ventura (13.7.5) workers
can still solve test environments.

osx-64 is unchanged; the platform was discontinued 2025-08-15.
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