title: How to determine which xcode was used to develop from code
body: <p>I have iOS app source code i want to determine which version of xcode was used to develop the project.</p>
  
  <p>In <code>project.pbxproj</code> when i go to section <code>/* Begin PBXProject section */</code> it says </p>
  
  <pre><code>compatibilityVersion = "Xcode 3.2";
  </code></pre>
  
  <p>so my guess is it has been developed on some 4.x version not on xcode 5. Please suggest.</p>