OnePlus is swapping to ColorOS, the alternative of Android used by Oppo smartphones, for its new OnePlus 9 series in China. The big change was publicized by the product lead on OxygenOS by Gary C. OxygenOS is what OnePlus phones use in the rest of the world.

However this does not change anything for the remainder of the global OnePlus 9 series that are soon to be revealed in full. But the end does seem near for HydrogenOS, the China-specific type of Android that OnePlus formerly consisted of in all its devices in mainland.