anchor.diff:  By default, Cloud Foundry retains the 5 most recent staged droplets in its droplets bucket. This means that you can roll back to revisions as long as they are using one of those 5 droplets. Note that not all revisions include a change in droplet. 
   
   <% if vars.product_name.include? "CF" %>
  -Operators can configure Cloud Foundry to retain more droplets if necessary using the <%= vars.droplet_config %>. 
  +Operators can configure Cloud Foundry to retain more droplets if necessary using the <%= vars.droplet_config %> 
   <% end %>
   
   ## <a id="enable"></a> Enable Revisions for an App
  
positive.code: 
  ## <a id="view"></a> View Revisions
  
  You can view revisions in the following ways:
  
  * List all revisions for an app. 
  * List deployed revisions for an app. 
  * Get a revision. 
  
  For more information, see the _Revisions_ section of the [CAPI documentation](http://v3-apidocs.cloudfoundry.org/version/release-candidate/#revisions). 
  
  ## <a id="push-app"></a> Rollback to a Previous Revision
  
  
negative.code: 	}'
  	```
  	Where:
  	* `REVISION-GUID` is the GUID of the revision. 
  	* `APP-GUID` is the GUID of the app. 
  
  ## <a id="view"></a> Add Metadata to a Revision
  