Adobe Flash 220.127.116.11 was released September 21, 2015. This is a critical patch. You can read the security bulletin for vulnerability APSB15-23 here. This is a priority 1 patch. However, many sys admins have noticed that this update to Adobe Flash does not completely remove earlier versions of Adobe Flash.
If you installed this new update on a machine with a previous version you may have noticed that the Windows Control Panel will still show two versions of Adobe. This is a known bug with this update of Adobe Flash.
Flash fails to remove the registry key from the previous version when updating so the Control Panel and inventory systems (such as PDQ Inventory and SCCM) show two versions as being installed.
There is a preventative measure you can take to make sure the offending Adobe Flash is completely removed and the new Adobe Flash is successfully installed.