voorstad, Nov 22, 2017 : Yes, Oneplus3/3T and Oneplus5/5T will get android 8.1 BUT: without project Treble. https://source.android.com/devices/architecture/treble So if you care about future updates without manufacturer dependency, skip this phone and wait for a real Android 8.x Oreo release. Phones that are delivered with Oreo as from the initial release are obliged to have project Treble. Owners of a 3/3T and 5/5T will not benefit from project Treble. As said by Adam Krisko from Oneplus. Be warned!