title: What's the difference between "version number" in iTunes Connect, "bundle version", "bundle version string" in Xcode?
body: <p>Apple's doc could have been more clear on how to submit an update version.</p>
  
  <p>As asked in the title,
  What's the difference between</p>
  
  <ol>
  <li>version number in itunes connect(which you have to supply when you submit an update)</li>
  <li>bundle version in xcode</li>
  <li>bundle versions string, short</li>
  </ol>
  
  <p>Are they related in any way?  </p>