macOS and iOS
Which simulator runtimes ship on macOS runners?
Quick answer
iOS 17.5 through 18.4, plus watchOS, tvOS and visionOS runtimes.
The detail that matters
Pin to a preinstalled runtime — downloading one at job time costs several minutes on every run.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
Do GitHub Actions runners support macOS?Yes, both GitHub-hosted and managed providers offer macOS runners on Apple silicon.Can I build iOS apps without a Mac runner?No. Xcode only runs on macOS, so an iOS build requires a macOS runner.Is Xcode preinstalled on macOS runners?Yes. runnerhut images ship several Xcode versions with matching command line tools.How do I select an Xcode version?Run sudo xcode-select -s /Applications/Xcode_16.4.app before your build steps.