iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Opens Up Pre-Orders for Next Round of iPhone 4S Launches
Apple does not operate online stores in all of those markets, however, and thus the new pre-orders for unlocked iPhone 4S models through Apple are only available in the following countries: Austria, Belgium, Czech Republic, Denmark, Finland, Hungary, Ireland, Italy, Luxembourg, Mexico, Netherlands, Norway, Singapore, Spain, Sweden and Switzerland. Customers in other countries and those looking to purchase subsidized units on contract may be able to arrange for pre-orders through their local iPhone carrier partners.
Rather than promising October 28th delivery for iPhone 4S pre-orders in the new batch of countries, Apple is currently citing shipping estimates of 1-2 weeks. It is unknown if Apple is planning to meet the original October 28th date or if availability will slip slightly in the face of strong demand in markets where the device has already launched. Apple announced opening weekend sales of four million units for the iPhone 4S, more than double that of the iPhone 4 last year.