iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Hires Nokia's Lumia Photography Lead to Work on the iPhone's Camera
According to Partinen's LinkedIn biography, his responsibilities at Nokia included "working with image quality characterization and tuning on camera module level", while handling camera component production and quality control on a global scale. Partinen also lists the Nokia's 808 PureView and Nokia N8 as devices he has worked on, which were regarded for their noteworthy photographic capabilities.
Partinen's hire comes as Apple is reportedly looking to bolster the next-generation iPhone's camera through optical image stabilization and other improvements. Nokia has focused heavily on the advantages of the camera's on its devices throughout the past few years, recently launching the Nokia Lumia 1520 with a 20 MP PureView camera.