You can configure the End-User Notification whenever a new version of the Microsoft Online Sign-In application is released. This is useful if you want to control whether you want your end-users to receive a notification or not.

For example: a End-User who has no rights to install anything on his computer doesn’t want to be bothered by any new version release. You can disable this notifications by use of Group Policy’s (preferred by myself) or by editing the registry (in theory the GPO does the same off course ).

Here is a description how to do this: Microsoft Online Services Team Blog – Disabling End-User Notifications in the Sign-In Application

kudos to the Microsoft Online Services Team Blog