The update has already spread to the two high-end handsets in numerous markets around the world. As SamMobile reports, this latest rollout makes Sprint the first US carrier to upgrade the Galaxy Note5 to Android 7.0. Sprint hasn't yet updated its support site to reflect availability of the update, but numerous owners of the device have confirmed that they've received it.
The last update that the Note5 received from Sprint was the Android security patches for February. Given that the carrier has already released the March security update for the Galaxy S7 and S7 edge, and even for the much older Galaxy Note 4, the Nougat update seems likely to come with those more recent patches for both the Galaxy Note5 and S6 edge+.
This latest rollout begins over seven months after Google originally released Android 7.0. The company has already announced details of the next major version of the OS, currently known as 'Android O'.