OxygenOS 3.1.0 is now rolling out to the OnePlus 2 - but many owners of the handset have flooded its forums with complaints that various outstanding issues and bugs still haven't been addressed.
Quadrooter RSS
Four major security flaws, collectively dubbed 'QuadRooter', have left around 900 million Android devices with Qualcomm chipsets - including many of the latest flagships - vulnerable to attack.