Some units of Samsung Galaxy Note 7 have received a new software update. The build is VRS2APHE and it has two functions. 

First of all, your device will be checked for the dangerous battery, if it's safe, the green icon will be present in the status bar.

What is more, if you have fire-prone unit, you will be getting warning messages, as you can see in the included screenshot. We recommend to change your Note 7 immediately, if it's not safe.