Cyanogen has begun firing Cyanogen OS 12.1.1 to the OnePlus One. The OTA update isn’t a Marshmallow surprise, but it’s worth trying out – as it bakes Microsoft’s Cortana inside.
Cortana on the OnePlus One includes support for alarms, quiet mode, settings toggles, and most notably the “Hey Cortana” command. The update is now available publicly as an incremental rollout.
Thanks, Saroj D!