iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Additional Photos of Purported Silver iPhone 6 Rear Shell Surface
Similar to previous leaks, this newest rear shell shows a number of physical features including a near-all metal design with upper and lower bezels, a cutout for the new round "True Tone" dual-LED flash, and a cutout for the rear camera that may hint at a protruding lens for the device.
Apple is expected to reveal the iPhone 6 at an event on September 9, with a launch likely coming one week after the announcement. It is possible that the company will release the 4.7-inch version of the iPhone 6 first, with the 5.5-inch version seeing a launch later this year or early next year as Apple solves production issues with the larger device. In addition to a bigger screen, both versions of the iPhone 6 will likely incorporate a faster A8 processor, an improved camera with stabilization, and iOS 8.