GitHub plans macOS 14 runner brownout for 5 October
GitHub says hosted Actions jobs using macos-14, macos-14-large or macos-14-xlarge will temporarily fail from 5 October 14:00 UTC to 6 October 00:00 UTC. Its 1 October notice sets image retirement for 2 November. GitHub describes planned failures, not observed ones.
BlackTree’s retirement record tracks image retirement, not Apple support or the brownout.
Check replacement labels
Inventory those labels; check a GitHub-listed replacement’s architecture and tools, then test before switching. This advice is not a compatibility guarantee or completed migration. GitHub warns capacity may decline before retirement.
