A
It's on the July security update, which is what it comes with out of the box. There haven't yet been any updates pushed to this phone.
I'd be very happy to see a security patch soon or emui 5 before the end of the year... But I don't really think we should expect anything until December or January. It only shipped this month, and we've been told to expect updates quarterly- that would put us at the very end of the year or early 2017.
It does take time to rebuild the OS and get it stable, so don't expect the latest and greatest patch level whenever the next update comes, either.
Are they on the most recent update or a few behind?