After several weeks and variants of beta testing, Apple has dropped iOS 9.3.2 for all users. This software update is available now for iPhones, iPads, and iPods via an over-the-air update. The two main reasons for the 9.3.2 update would be for bug fixes and some security updates.
The update comes in at 1.5GB’s for the iPhone 6s and brings about several fixes for bugs. A big fix is that iOS will now let you use Night Mode when Power Reserve Mode is turned on. Specifically for the iPhone SE, this fixes an audio quality issue for Bluetooth devices connecting to the smartphone.
Along with these large fixes, there are many others and you can expect an overall speed improvement with iOS 9.3.2.