Solutions
-
GolfSierra's post in Updater for NGX CD version was marked as the answerThe solution is already available, since you can download the newest installer from the Aerosoft Support Database, by clicking on the following link:
http://support.aerosoft.com/index.php
In the drop-down menu, scroll all the way down to "PMDG - 737 NGX FSX" and then click on "Show support for the selected product". This will give you the installer for version v1.10.6461. Your serial key will be required.
I feel like PMDG should really include this information in the Operations Center.