iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
New High-Resolution Photos of iPhone 5S Parts Reveal Little
Unfortunately, the photos reveal little about Apple's plans for the iPhone 5S, as they are minor parts generally seeing relatively small changes compared to their corresponding iPhone 5 parts.
The parts include the loud-speaker bracket, ear speaker bracket, vibrating motor assembly, Wi-Fi flex cable ribbon and SIM card tray from Apple’s upcoming seventh-generation iPhone.Part leaks claimed to be from the iPhone 5S began in January with photos of a speaker enclosure, and have continued with additional photos of the home button and volume/mute button flex cables, front camera flex cable, and nano-SIM card trays. The source of the previous SIM tray leak claimed that the trays were identical to those seen in the iPhone 5, while BGR's report today claims that they are thinner.
Most recently, just last week an antenna-related add-on piece for the iPhone 5S logic board surfaced, although the implications of minor changes observed in the part compared to the iPhone 5 remain unknown.