The Servicing Extension is a free add-on to Microsoft System Center 2012 R2 Configuration Manager. One of it’s most useful features in my opinion is automatically creating queries for every version of ConfigMgr agent that you need. This helps target client updates turning it into a trivial exercise since it writes the collection query for you.
First, download it here: https://www.microsoft.com/en-us/download/confirmation.aspx?id=45033
After re-opening the console, you will now have a new Site Servicing module under the Administration Workspace.
To create targeted client collections, simply click on Client Targeting to view your options. Click Create Query for the version older than your most current update.
Choose that version and below, then Create Query.
Now that you have a reusable query, simply make a new Collection and import that query.
Create a deployment for your ConfigMgr update to the newly created collection.
This extension highlights also new updates and releases, helping you keep ahead of newly released updates.