From the docs:
We figure out the the simulator destination for you automatically. Stop specifying fragile strings like platform=iphonesimulator,os=14.5,name=iPhone 12 that will break when Xcode updates next week.
Which is a great feature... however, this:
- uses: mxcl/xcodebuild@v3
with:
platform: iOS
xcode: '~16.0'
action: test
configuration: 'debug'
Should not run on an iOS 18.1 beta simulator just because it's installed.