title: Team Foundation Server Build Agents
body: <p>I recently upgraded from Team Foundation Server 2017 to Team Foundation Server 2018.  I have a couple of questions about the build portion of the install.  Our current TFS build agents live on a different server than the TFS Web application.  </p>
  
  <p>I believe in previous upgrades and installs there was an option on the install media to just install the build portion of TFS.  </p>
  
  <ul>
  <li><ol>
  <li>Do I have to do any type of upgrade on the build server or just update all of the agents from the web application as seen in this image 1?</li>
  </ol></li>
  <li><ol start="2">
  <li>Although my upgrade was from TFS 2017 to TFS 2018 the build server has an administration console that shows it's version as 2015 (see image 2).  Do I need to uninstall this 2015 application?</li>
  </ol></li>
  </ul>
  
  <p><em>Image 1</em></p>
  
  <p><a href="https://i.stack.imgur.com/aTaQV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aTaQV.png" alt="Image 1"></a></p>
  
  <p><em>Image 2</em></p>
  
  <p><a href="https://i.stack.imgur.com/HDYD2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/HDYD2.png" alt="enter image description here"></a></p>