Update github runners to use macos 15 / xcode 16 #276
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johnmaguire
approved these changes
May 7, 2025
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According to https://github.com/actions/runner-images#available-images, currently
macos-latestis pointing to macos 14 images, which come bundled with xcode 15. Apple now requires xcode 16, which we'll get by updating tomacos-15.This also bumps the version github uses to
16.3(by default it will stay at 16.0), and adds a note to the README that ideally we should all be using the same version of xcode that is used to build the app that is sent to Apple.We could get fancier with this, but I don't think it's really necessary right now. See https://www.polpiella.dev/managing-xcode-installs-using-fastlane for other approaches.