title: Warning message from npm after installing node v13
body: <p>I installed the latest node.js v13. After the installation, I ran <code>npm -g upgrade</code> and got the following warnings;</p>
  
  <pre><code>npm WARN npm npm does not support Node.js v13.0.0
  npm WARN npm You should probably upgrade to a newer version of node as we
  npm WARN npm can't make any promises that npm will work with this version.
  npm WARN npm Supported releases of Node.js are the latest release of 6, 8, 9, 10, 11, 12.
  npm WARN npm You can find the latest version at https://nodejs.org/
  npm WARN npm npm does not support Node.js v13.0.0
  npm WARN npm You should probably upgrade to a newer version of node as we
  npm WARN npm can't make any promises that npm will work with this version.
  npm WARN npm Supported releases of Node.js are the latest release of 6, 8, 9, 10, 11, 12.
  npm WARN npm You can find the latest version at https://nodejs.org/
  </code></pre>
  
  <p>How to clear the warnings? Any side effects if I ignore?</p>
  
  <p>I am using Windows 10.</p>