title: Xcode 12.4 “Unsupported OS version” after iPhone iOS update 14.7
body: <p>After updating iPhone iOS version to 14.7+, Xcode 12.4 can no longer build to that iPhone device.</p>
  <p>In Xcode when choosing a Build Destination (Product &gt; Destination &gt; [device] or from the UI dropdown shown below) the newly updated iPhone will have beside it <strong><code>(unsupported OS version)</code></strong>:</p>
  <blockquote>
  <p><a href="https://i.stack.imgur.com/4ZXMj.png" rel="noreferrer"><img src="https://i.stack.imgur.com/4ZXMj.png" alt="xcode build destinations dropdown" /></a></p>
  </blockquote>
  <h3>iPhone listed with &quot;(unsupported OS version)&quot;.</h3>
  <blockquote>
  <p><a href="https://i.stack.imgur.com/OB2hs.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/OB2hs.jpg" alt="unsupported OS version" /></a></p>
  </blockquote>
  <h3>Can't Upgrade to Big Sur / Xcode 12.5</h3>
  <p>I'm stuck on Mac OS Catalina (old hardware) and <strong>cannot upgrade to Xcode 12.5 which requires Big Sur</strong>.</p>
  <p>How can we add/update device support to Xcode to build to an unsupported iPhone version (iOS 14.7+)?</p>