anchor.diff:  
   <p class='note'><strong>Note:</strong> The route component attributes <code>domain</code>, <code>domains</code>, <code>host</code>, <code>hosts</code>, and <code>no-hostname</code> have been deprecated in favor of the <code>routes</code> attribute. For more information, see <a href=#deprecated>Deprecated App Manifest Features</a>.</p>
   
  -### <a id='buildpack'></a> buildpack
  -
  -If your application requires a custom buildpack, you can use the `buildpack` attribute to specify it in one of three ways:
  +### <a id='buildpack'></a> buildpacks
  +
  +If your application requires a custom buildpack, you can use the `buildpacks` attribute to specify it in a number of ways:
   
   * By name: `MY-BUILDPACK`. 
   * By GitHub URL: `https://github.com/cloudfoundry/java-buildpack.git`. 
  
positive.code: <pre>
  ---
  defaults: &amp;defaults
    buildpack: staticfile_buildpack
    memory: 1G
  
  applications:
  
negative.code: <pre>
  ---
  defaults: &amp;defaults
    buildpacks: 
      - staticfile_buildpack
    memory: 1G
  
  applications:
  