iOS - App build with Xcode 8 and iPhone 4S compatibility
<p>I build an app with Xcode 7 and minimum target 8. One of the clients was using iOS 9.2.1 on iPhone 4S. Then I updated the app (minor update) using Xcode 8 and keeping the exact same configuration. Now iPhone 4S user gets an error </p>

<blockquote>
  <p>"app name" is not compatible with this iPhone</p>
</blockquote>

<p>Any ideas why this is happening?
PS.(Valid architectures: arm7,arm7s,arm64)</p>