title: Upgrade Ionic to latest version
body: <p>I am trying to upgrade Ionic to the latest version. Looking <a href="https://www.npmjs.com/package/ionic" rel="noreferrer">here</a>, it shows that the latest version is <code>3.0.0</code>. I also follow <a href="http://blog.ionic.io/announcing-ionic-cli-v3/" rel="noreferrer">this</a> tutorial.</p>
  
  <p>So I do the following:</p>
  
  <pre><code>sudo npm uninstall -g ionic
  sudo npm install -g ionic@latest
  </code></pre>
  
  <p>console:</p>
  
  <pre><code>Richards-MacBook-Pro:theWhoZoo richardmarais$ sudo npm install -g ionic
  Password:
  /Users/richardmarais/npm-global/bin/ionic -&gt; /Users/richardmarais/npm-global/lib/node_modules/ionic/bin/ionic
  /Users/richardmarais/npm-global/lib
  └── ionic@3.0.0 
  </code></pre>
  
  <p>But when I run:</p>
  
  <pre><code>ionic -v
  </code></pre>
  
  <p>I get:</p>
  
  <pre><code>2.1.18
  </code></pre>
  
  <p>and:</p>
  
  <pre><code>ionic info
  </code></pre>
  
  <p>I get:</p>
  
  <pre><code>Your system information:
  
  Cordova CLI: 6.4.0 
  Ionic Framework Version: 3.1.1
  Ionic CLI Version: 2.1.18
  Ionic App Lib Version: 2.1.9
  Ionic App Scripts Version: 1.3.0
  ios-deploy version: Not installed
  ios-sim version: Not installed
  OS: macOS Sierra
  Node Version: v7.10.0
  Xcode version: Xcode 8.3.2 Build version 8E2002
  </code></pre>
  
  <p>I would expect it to update the <code>Ionic CLI Version: 2.1.18</code> to <code>3.0.0</code>. Is that a correct assumption?  If so, do you know what I am doing incorrectly?</p>
  
  <p>Thanks</p>