The development process was quite slow iOS 9.3.3, Apple even published until 5 beta versions. But it has finally come to iPhone and iPad.
In iOS 9.3.2, Apple fixed some bugs Bluetooth on the iPhone, and other minor bugs corrected.
All users who want to download and install iOS 9.3.3 on your iPhone / iPad via OTA only must go to Settings> General> Software Update.
Apple has released the final version of iOS 9.3.3 just an hour ago, so it is possible that some devices are not yet available.
As always, it is important to note that you will need Wi-Fi and enough battery to start downloading iOS 9.3.3.
While this small update, which improves system stability and covers some security breaches, is unexciting but keep in mind that Apple is working on iOS full 10.
iOS 10 coming in September, with the iPhone 7 and implement significant changes from iOS 9.3.3: new apps like Home for HomeKit, Apple Music redesigned messages with many new features , Notifications and Widgets enriched / as a Control Center with new panels, more interaction in the Lock Screen function Raise to Wake , and more.