title: What's the difference between *.b2 and *.rc1 software releases?
body: <p>I've got 2 wxPython Phoenix wheels </p>
  
  <pre><code>wxPython-4.0.0b2-...
  wxPython-4.0.0rc1.dev...
  </code></pre>
  
  <p>How do I know which one is the latest?</p>