The OnePlus 5 is now getting Official Android 8.0 Oreo Software Update. Android Oreo comes with numerous enhancements over Android Nougat, such as faster booting, new Settings and Quick-Settings UI, Picture in Picture (PIP), Adaptive icons, Autofill, Notification timeout, OnePlus has also add several new features to the latest software update. Android 8.0 Oreo update for the OnePlus 5 also brings Face Unlock, Redesigned Camera UI and new beauty effect for Portrait Mode, Gallery with new Places tab for viewing photos on a map, Redesigned Clock, Launcher, and Quick Settings.
OnePlus says that this OTA will be incremental. The OTA will reach a small percentage of users today, and to all in a few days.
If you haven't got the notification of this new software update yet, Just go to Settings - About Phone - Software updates, and It will automatically start downloading the latest update. The update will take around 10-15 minutes to get Installed on your device.