Default [Q] Multiple (different) System Update notifications

Hi,

I've had the 4.4.2 System Update notification since it was pushed to the Nexus 4 (but haven't "upgraded" since it might brick my phone and the new features are not compelling), and, as many people have mentioned, I would like to get rid of it, but can't. However, that isn't my question - yesterday another System Update notification showed up, but the icon is slightly different and I was not aware of any new updates being pushed. I've searched online for new updates and nothing has come up. Has anyone else gotten this? I haven't clicked on it because I don't know what it is and I certainly don't want to update the OS. I realize I haven't done any troubleshooting, but I was just hoping to see if anyone else has this.

Thanks,
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