docker version number confusion: 17.06 vs 1.13? : <p>I am confused by the version number of <code>docker</code></p>

<p>Some documentation refers to version numbers like <code>17.06</code>  E.g. (from <a href="https://docs.docker.com/engine/admin/volumes/volumes/" rel="noreferrer">here</a>)</p>

<blockquote>
  <p>However, starting with Docker 17.06, you can also use <code>--mount</code> with standalone containers</p>
</blockquote>

<p>But some other documentation refers to version number like <code>1.13</code>  E.g. (from <a href="https://docs.docker.com/get-started/#container-diagram" rel="noreferrer">here</a>)</p>

<blockquote>
  <p>Note: version 1.13 or higher is required</p>
</blockquote>

<p>Was the version numbering convention changed at some point in time?</p>
