macos-15-intel runner ends August 2027: GitHub's last Intel Mac date

macos-15-intel runner (x86_64): ends Aug 2027, in 296+ days (GitHub gives only the month). GitHub said the label is available until August 2027 and that after that date the x86_64 architecture is not supported on GitHub Actions. It has not given the day, or announced brownouts yet. The fix: Move to an arm64 label (macos-15 or macos-26). If you need Intel, macos-26-intel exists; GitHub has published no end date for it. Check your workflows now, with nothing to install: grep -rnE "macos-15-intel" .github/workflows

$ grep -rnE "macos-15-intel" .github/workflows

Run it from the repository root; it needs nothing installed and sends nothing anywhere. It finds each name as written in your workflow files; a value set in another file and passed in (a matrix from JSON, a reusable workflow's input) needs a look of its own. The fix is in the first paragraph above. The dates come from this data.

The facts

What

macos-15-intel runner (x86_64)

Matches

Runner labels macos-15-intel, in runs-on or a matrix

Effect

Breaks a job

Announced

19 September 2025

Date

Aug 2027ends Aug 2027, in 296+ days (GitHub gives only the month)

After the date

GitHub said the label is available until August 2027 and that after that date the x86_64 architecture is not supported on GitHub Actions. It has not given the day, or announced brownouts yet.

The fix

Move to an arm64 label (macos-15 or macos-26). If you need Intel, macos-26-intel exists; GitHub has published no end date for it.

Replace

macos-15-intel → macos-15

actions-eol is a free tool from agentcheck, which runs scheduled checks of your endpoints and alerts you when an answer changes. Dates come from GitHub's own pages, read on the day shown; github.com only, since GitHub Enterprise Server keeps its own schedule.