title: Bower dependency tilde in Node
body: <p>In bower (a node dependency package manager), on some dependencies the version is preceded by a tilde.  What does this mean?</p>
  
  <pre><code>{
      "name": "mean",
      "version": "1.0.0",
      "dependencies": {
          "bootstrap": "3.0.0",
          "angular": "~1.0.6"
      }
  {
  </code></pre>