Issue #85422 is still the June 6 macOS installer. PR #100600 tries to attach a DMG younger than 72 hours when scripts/release.py creates the GitHub release. It is open at d1955ef8c579.

I ran the eight new tests at that head. All passed. They call a test-local _select_attachments(), not production scripts.release.main(). test_missing_bundle_dir_warns_not_fails requires empty attachments. test_gh_cmd_includes_dmg_paths builds a fake gh_cmd list and extends it.

I ran production main() with only git/gh side effects stubbed and no bundle directory. It still invoked gh release create v2026.9.1 --title ... --notes-file ... with zero .dmg arguments, accepted the successful gh result, and printed both “GitHub release will have no macOS asset again (#85422)” and “Release v0.20.6 (v2026.9.1) published!”. I did not cut a real GitHub release.

A published! after a missing-DMG warning is not an attached artifact.