iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Electronica Artist Owl City/Adam Young Designed iOS 7 Sounds [Updated]
Alongside the top-to-bottom redesign of the visual user interface in iOS 7, Jony Ive's design team -- with Young's help -- also reworked all the sounds in the OS as well. It isn't clear exactly which sounds Young worked on, though many of the texting and ringtones sound similar to his music.
Some of Adam Young's more well-known songs, under the Owl City name, include his breakout hit Fireflies, Good Time with Carly Rae Jepsen, and When Can I See You Again? from Disney's Wreck-It Ralph.
Young began creating songs in his parents' basement, sharing tracks on MySpace before signing with a record label and receiving commercial success. Like many musicians, he uses Macs and a number of different software titles including Apple's Logic, Pro Tools, and Propellerhead's Reason.
Update: The reference to Apple's iOS 7 sounds has been removed from Young's discography page.