Windows Phone 8 Update 3 (aka. GDR 3) preview already released for developers to build and test their applications and games. There are few features in this release that you might want to add in your app. For this, you need to check whether the device already has GDR3 installed.
In this small post, we are going to discuss how you can check whether the Updated 3 (GDR 3) has already been installed in the user’s device.