Reply to Xcode 10.0 diagnosticd high CPU w/iPhone XR Simulator I'm facing the same bug on my new Macbook Pro M2 14 Inch, it seems like a very old bug, and because of this I don't even open Xcode, I cannot work, the laptop gets so hot, if it's 5 years old unfixed bug it might be better get a refund. Developer Tools & Services Xcode Oct ’23