1) Live Photos now intelligently senses when you raise or lower your iPhone, so that Live Photos will automatically not record these movements
2) Over 150 new emoji characters with full support for Unicode 7.0 and 8.0 emojis
3) Improved stability including CarPlay, Music, Photos, Safari, and Search
4) Improved performance while in Multitasking UI
5) Fixes an issue that could cause Calendar to become unresponsive in Month view
6) Fixes an issue that prevented Game Center from launching for some users
7) Resolves an issue that zoomed the content of some apps
8) Resolves an issue that could cause an incorrect unread mail count for POP mail accounts
9) Fixes an issue that prevented users from removing recent contacts from new mail or messages
10) Fixes an issue that caused some messages to not appear in Mail search results
11) Resolves an issue that left a gray bar in the body of an Audio Message
12) Fixes an issue that caused activation errors on some carriers
13) Fixes an issue that prevented some apps from updating from the App Store
For information on the security content of this update, please visit this website:
http://support.apple.com/kb/HT1222