[Q] New Software Update? topic

Hey guys, my Spring Galaxy S3 got a notification a few days ago saying "System update downloaded, Android system update."

I'm running 4.4.2 stock and I'm rooted. I have no idea what this update is. The size is 83.6 MB. If this is a proper update, I will probably lose root and I don't want that. Does anyone know what this update is specifically? And how can I get rid of it from showing up on my notifications if I chose not to update?

Thanks!