iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Enables Promo Codes for iPhone Applications Rated 17+
Luckily, it seems that Apple has been listening: over the past few days, we have received word from a number of developers stating that they are now able to request promo codes for their 17+ apps. While Apple has not made any official comment on the issue, it appears that they have quietly conceded this battle to the developers, once again enabling them to distribute promo codes as needed for all of their apps.Apple's promo code policy for 17+ applications appeared to be related to a lack of parental controls applying to promo code redemption. At this time, it is unclear whether Apple has made any technical changes to the App Store to address this issue or if it is simply a policy change.