OnePlus has over the past few weeks released two beta builds of the Android 9 Pie update for the OnePlus 5 and 5T, and now the stable version is rolling out. The finalized version of the update is headed to the company's two handsets from last year. It arrives as OxygenOS 9.0.0, based on Android Pie. It contains the December 2018 security patches too. When you get the new software, you'll see the brand new Pie UI, new navigation gestures for the 5T, and you get a new Do Not Disturb mode too, with adjustable settings. Google Lens is integrated in the Camera app, and Gaming mode 3.0...
Source: https://www.gsmarena.com/oneplus_5_and_oneplus_5t_are_now_receiving_the_stable_update_to_android_9_pie-news-34826.php
