Your iOS builds can fail on 5 October, and nobody on your team changed a thing.
By Lior AharonovFounder, 7IT Solutions ·
GitHub will retire the macos-14, macos-14-large and macos-14-xlarge runner images on 2 November 2026. Before that come eight brownouts when jobs on those labels fail, the first from 14:00 UTC on 5 October until midnight UTC and the last starting 14:00 UTC on 30 October.
If an iOS or macOS build still names macos-14, it fails on brownout days, and brownouts don't check your release calendar. The clock is already running.
Search your workflows for macos-14 today and switch to macos-15 or macos-latest (macOS 26), or their xlarge versions. Run one build on the new image before 14:00 UTC on 5 October.
A brownout is the kindest warning you'll ever get. Ignore it, and the next one is the blackout.
Lior Aharonov · my takeSources
Researched with AI tools; every fact is checked against the linked sources.