After the release of updated version of
iOS 9.3 a days ago, Apple releases the new software version iOS 9.3.1 with a
build number 13E238 to public to fix an issue that caused apps to be
unresponsive after tapping on links in Safari and other apps.
iOS 9.3.1 is available via an over-the-air
update or via iTunes for iPhone, iPad and iPod touch.

Though it is unclear whether this update
also contains other enhancements and bug fixes, but we will let you know if it
contains any new features in it.