iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Releases Safari 4.0.4
This update is recommended for all Safari users and includes improvements to performance, stability, and security including:
- Improved Full History Search performance for users with a large number of history items
- Stability improvements for 3rd-party plug-ins, the search field and Yahoo! Mail
For detailed information on the security content of this update, please visit this site: http://support.apple.com/kb/HT1222.