title: How to check if Gradle dependency has new version?
body: <p>In Android Studio when I use a <code>+</code> in the version number like:<br />
  <code>com.android.support:recyclerview-v7:21.+</code><br />
  I get a &quot;Avoid using + in version numbers&quot; warning.</p>
  <p>But when I use a specific version number I can't always use the latest version. I have a lot of dependencies in my project.</p>
  <p>How do I check if a dependency has a newer version?</p>
  <p>Is there an Android Studio plugin (or something like that) to notify me when there is a newer version of a dependency?</p>
  <p><strong>Edit:</strong><br />
  Android Studio highlights the outdated Android Support Libraries and Google play services. But this is not available for other custom libraries.</p>
  <p><img src="https://i.stack.imgur.com/yZ2DO.png" alt="Android Studio highlights" /></p>