GitHub Actions macOS 14 Runner Retirement: Survive the October Brownouts and Migrate Before November 2 Starting October 5, 2026 at 14:00 UTC, GitHub will deliberately fail every job that asks for a macOS 14 hosted runner, for ten hours at a time, on eight separate days this month. On November 2, 2026 the image goes …

GitHub Actions Ubuntu 26.04 Migration: What Breaks When ubuntu-latest Moves On September 17, 2026, GitHub announced that the ubuntu-latest runner label is moving from Ubuntu 24.04 to Ubuntu 26.04, rolling out gradually between October 19 and November 19, 2026. If your workflows just say runs-on: ubuntu-latest and …