OnePlus 5, 5T start getting Android 8.1 Oreo-based OxygenOS 5.1 April 18, 2018 android oreo one plus 5 one plus 5T +
OnePlus 5 Receives Android 8.1 Oreo Via OxygenOS Open Beta 6 Update March 11, 2018 android oreo one plus 5 +