A new update is rolling out to the OnePlus 6, bringing with it a nice selection of changes and improvements. OxygenOS 5.1.6 adds some notable highlights, such as Portrait Mode for the front camera and several things.
Some of the major changes are these..
Camera
Added Portrait Mode for the front camera
Added preview for Light Bokeh effect in Portrait Mode of the rear camera
Phone
Optimized call clarity
System
Supported battery percentage in the status bar
Improved ringtone volume and sound quality
Now able to schedule Do Not Disturb(DND) mode
Added Dual-4G network option in SIM & network settings
Optimized power consumption and Improved system stability
Earphone mode
Added smart answer for Bluetooth - automatically answer incoming calls when connecting to Bluetooth devices