iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Announces September 19th Release Date for iOS 6
At today's media event, Apple announced that iOS 6, which had announced in June at the company's WWDC keynote event, will be available on September 19th.
iOS 6 will offer several new features. Siri will be enhanced to provide movie information, sports scores, and the ability to post to Facebook and Twitter. The new Passbook app will hold tickets, passes, and payment cards for participating businesses. Safari will have a full-screen mode for better browsing and iCloud tabs to save your open tabs and offer immediate access to them on your other iOS devices and your computer.
Maps app will provide turn-by-turn directions and a new 3D flyover feature to show a more realistic view of buildings and land features. Facebook will be integrated into iOS 6, with the ability to post Photo Stream pictures straight to the social networking service and status updates through Siri.
iOS 6 will be available as a free download for the 4S, 4, 3GS, new iPad, iPad 2 and 4th generation iPod Touch. The iPhone 5 will ship with iOS 6.