The new Portrait Lighting modes work on both the rear camera and front camera for selfies. (engadget.com)
Indeed, it's the software that will need to be optimized for better shutter speed judgments as well as a better low light mode in general. (pocketnow.com)
There's a Night Light mode that cuts down on blue light, which can be manually configured to the colour depth that suits you. (zdnet.com)