The supported by LanGuard third party application has been superseded by the vendor. It is no longer updated by LanGuard, and you don't see this new version of the software in the list of the supported applications.
A vendor replacement of an application is essentially a new software, for example, when Citrix Receiver has been superseded by Citrix Workspace. Previously supported by LanGuard application will continue getting any patches released for it by the vendor, and to support the updates for the new software, it has to be added to a list of products available for patching by the GFI LanGuard.
Please, Contact GFI LanGuard Support for the new software to be made available as third-party software updated through GFI LanGuard.