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ci: move the release wheel build off the retired macos-14 runner (pin macos-15) #889

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Merged
igerber merged 1 commit into from
Nov 11, 2026
Merged

ci: move the release wheel build off the retired macos-14 runner (pin macos-15) #889

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5 changes: 4 additions & 1 deletion .github/workflows/build-wheels.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,10 @@ jobs:
build-macos-arm:
name: Build macOS ARM64 wheels
if: ${{ !inputs.linux_only }}
runs-on: macos-14
# Pinned (not macos-latest) so an image rollover cannot change the release
# build unannounced. macos-14 was retired from GitHub Actions on 2026-11-02;
# see docs/dev-status.md "macOS wheel runner pinned to macos-15".
runs-on: macos-15
strategy:
matrix:
python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14', '3.15']
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6 changes: 6 additions & 0 deletions changelog.d/20261111-macos-15-wheel-runner.md
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@@ -0,0 +1,6 @@
### Internal
- **Release wheel build moved off the retired `macos-14` runner**:
`build-wheels.yml`'s macOS ARM64 job now runs on `macos-15`. GitHub retired
the macOS 14 images from GitHub Actions on 2026-11-02, so every macOS wheel
job was rejected before starting and the next release could not have
published. No change to the library or to the published wheel set.
18 changes: 18 additions & 0 deletions docs/dev-status.md
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Expand Up @@ -174,6 +174,24 @@ Every workflow's Linux job uses `runs-on: ubuntu-24.04`, not `ubuntu-latest` (pi
Un-pin only after both are fixed upstream and verified on a throwaway branch. The ARM
matrix entries already used the GitHub-hosted `ubuntu-24.04-arm` label and are unchanged.

## macOS wheel runner pinned to `macos-15`

`build-wheels.yml`'s macOS ARM64 job uses `runs-on: macos-15` (changed from `macos-14` on
2026-11-11). GitHub retired the macOS 14 images from GitHub Actions on 2026-11-02
([runner-images#13518](https://github.com/actions/runner-images/issues/13518)); after that
date every `macos-14` job is rejected before it starts (`The configuration
'macos-14-arm64-us-default' is not supported`), and because `publish.yml`'s upload job
`needs` the whole wheel matrix, a release could not publish at all.

- The job only runs at release time and on a manual `release-build-check.yml` dispatch
(the PR-triggered run is `linux_only`), so a retired label is invisible to PR CI. Run
`gh workflow run release-build-check.yml --ref <branch>` after any runner-label change.
- The label is pinned rather than `macos-latest` so an image rollover cannot change the
release build unannounced. When GitHub announces the macOS 15 retirement, move the pin
and re-run the full-matrix rehearsal, checking that the wheels keep the
`macosx_11_0_arm64` platform tag.
- `rust-test.yml`'s test matrix intentionally stays on `macos-latest`.

## MMM tutorial environments (notebooks 29 / 30)

The two executed MMM calibration tutorials need frameworks that CANNOT share one
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