https://arstechnica.com/gadgets/2018/09/the-oneplus-6-gets-its-official-android-9-pie-update/

OnePlus continues its trend of getting better and better at updates. Earlier this year, it finally released a formalized update plan for its devices, and now it's releasing one of its fastest device updates in recent memory. The OnePlus 6 is being updated to Android 9 Pie.