Finally at the last, the Verizon gives a good news for its HTC One M9 users,as the phone has started receiving Android 7.0 Nougat update. This device is an old device, launched in 2015 with Android 6.0 Marshmallow operating system. The Nougat update comes with the software version of 4.49.605.11.
Further we want to tell you that Globally the HTC One M9 smartphone taste the Nougat update in February current year, but T-Mobile devices take this update later in March. After in May AT&T One M9 device also has the Android 7.0 Nougat update. The Nougat update also includes August 2017 security patches.
Now there is not any device of HTC One M9, which is present with Marshmallow operating system. As the update comes Over-the Air (OTA), so it may take some time to hit the device. But you can go for manually update heading to Setting > About phone > System update.