Sony has started rolling out Android 7, Nougat for its Xperia Z3+, Xperia Z4 Tablet, Xperia Z5, Xperia Z5 Compact, Xperia Z5 Premium, Xperia X, Xperia XA, Xperia XA Ultra, Xperia X Performance – and Xperia XZ & Xperia X Compact devices.
The updates are being rolled out in Australia, India, Latin America, Middle East, Russia, Turkey, Thailand and Vietnam as of now. The Android 7.0 Nougat update for Xperia X handsets is 1276.7MB in size. With the update, the Android security patch level will also get updated to December 2016. The Sony Xperia Z4 and Xperia Z4v will not receive any updates at all.
— Sony Xperia News (@SonyMobileNews) December 19, 2016