CheckPlayer can be instantiated with a check status callback, but no autoUpdate, which allows your code to programmatically (as opposed to waiting for use action) respond to the event that the check passed or failed.
This demo illustrates how the checkCB function can be used to automatically initiate an update in a similar way to passing a 'true' value for the autoUpdate parameter. The same behavior as Demo #1 should apply depending on plugin version when you visit this page.