title: Xcode arm64 Vs arm64e
body: <p>Xcode 10.1 mention Support for arm64e (Preview). Anyone have any idea about arm64e. Any difference between arm64 and arm64e.</p>
  
  <p><a href="https://developer.apple.com/documentation/xcode_release_notes/xcode_10_1_beta_2_release_notes?language=objc" rel="noreferrer">https://developer.apple.com/documentation/xcode_release_notes/xcode_10_1_beta_2_release_notes?language=objc</a></p>
  
  <p>I searched arm64e. But couldn't found proper explanation.</p>