title: How to use a specific version of CocoaPods
body: <p>Is it possible to somehow specific the version of CocoaPods I'd like to use when upgrading or installing a Podfile? I've encountered several times where Podfiles work correctly with one version of CocoaPods but not with others.</p>
  
  <p>For example, the syntax I'm looking for is like the following:</p>
  
  <pre><code>pod -v 0.34 install
  </code></pre>