title: What does the IntelliJ 2017.2 setting for Maven “Always update snapshots” do?
body: <p><a href="https://stackoverflow.com/q/6642146/642706">This Question</a> is <a href="https://stackoverflow.com/a/45697349/642706">answered successfully</a> by checking <code>Preferences</code>/<code>Settings</code> &gt; <code>Build, Execution, Deployment</code> &gt; <code>Build tools</code> &gt; <code>Maven</code> &gt; <code>Always update snapshots</code> (checkbox) in <a href="https://en.wikipedia.org/wiki/IntelliJ_IDEA" rel="noreferrer">IntelliJ IDEA</a>.</p>
  <p><a href="https://i.stack.imgur.com/NVfCJ.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/NVfCJ.jpg" alt="screen shot of IntelliJ 2017.2 &gt; Preferences/Settings &gt; Build, Execution, Deployment &gt; Build Tools &gt; Maven &gt; Always update snapshots (checkbox)" /></a></p>
  <p>➠What exactly does that setting do?</p>
  <p><a href="https://www.jetbrains.com/help/idea/2017.2/maven-2.html?utm_medium=help_link&amp;utm_source=from_product&amp;utm_campaign=IU&amp;utm_content=2017.2" rel="noreferrer">The documentation</a> is unhelpful.</p>
  <blockquote>
  <p><strong>Always update snapshots</strong></p>
  <p>Select this checkbox, if you want IntelliJ IDEA to update snapshots on sync.</p>
  </blockquote>
  <ul>
  <li>What snapshots?</li>
  <li>In sync with what?</li>
  <li>Why would I <em>not</em> want to stay in sync?</li>
  <li>Why is this not checked by default?</li>
  </ul>