title: This version of TensorFlow Probability requires TensorFlow version >= 2.3
body: <p>I tried to run a model using TensorFlow Probability.<br>
  But when I run it I got the error below:<br></p>
  <pre><code>**ImportError: This version of TensorFlow Probability requires TensorFlow version &gt;= 2.3; Detected an installation of version 2.0.0-beta1. Please upgrade TensorFlow to proceed.**&lt;br&gt;
  </code></pre>
  <p>I cannot install TensorFlow 2.3 because it says there is no match.<br>
  I have installed these libraries.<br></p>
  <blockquote>
  <p><strong>tensorflow (2.0.0b1)<br> tensorflow-estimator (1.14.0)<br> tensorflow-tensorboard (1.5.1)<br> tfp-nightly
  (0.12.0.dev20200817)</strong><br></p>
  </blockquote>
  <p>Any suggestion how to fix it?</p>
  <p>Thanks in advance</p>