IOS version history

Apple Inc. provides updates to the iOS operating system for the iPhone, iPad, and iPod Touch through iTunes, since iOS 5.0, and through over-the-air software updates. With the announcement of iOS 5.0, on June 6, 2011, a USB connection to iTunes is no longer needed to activate iOS devices; data synchronization can happen automatically and wirelessly through Apple's iCloud service. The most recent update, iOS 9.0.2, was released on September 30, 2015 (2015-09-30). Currently, there is one major iOS update in the beta stage. This includes iOS 9.1 Beta 3 which was released on September 30, 2015 (2015-09-30). Alongside the developer beta, Apple also offers a Public Beta version to the public for beta testing.