title: Why are there multiple release versions of python
body: <p>At present(May 2013), there are three release versions, all released on may 15</p>
  
  <ul>
  <li>python 3.3.2</li>
  <li>python 3.2.5</li>
  <li>python 2.7.5</li>
  </ul>
  
  <p>I can understand the need for 2.x and 3.x branches but why are there seperate 3.3.x and 3.2.x versions?</p>