title: How to switch between versions of cocoapods?
body: <p>Is there a way to switch between versions of cocoapods?</p>
  
  <p>This is what I get when I try to remove one:</p>
  
  <pre><code>Select gem to uninstall:
   1. cocoapods-0.29.0
   2. cocoapods-0.34.4
   3. cocoapods-0.35.0
   4. cocoapods-0.36.0
   5. cocoapods-0.37.2
   6. cocoapods-0.38.2
   7. cocoapods-0.39.0
   8. All versions
  </code></pre>
  
  <p>I just select the number of one I need to uninstall. Is there a way to set <strong>current version</strong> of cocoapods?</p>