iOS 4 was the first major iOS release that reflected the name change. The introduction of what would later become the iPad line, and the existence of iPod Touch, meant the iPhone was no longer the only device to run the mobile operating system. It was officially renamed iOS on June 7, 2010, with the announcement and introduction of the first-generation iPad. When iOS was introduced, it was named iPhone OS. Before then, Apple marketing simply stated that iPhone ran a version of Mac OS X made specifically for the iPhone. iOS did not have an official name until the official release of the iPhone software development kit ( iPhone SDK) on March 6, 2008. June 2007 saw the official release of what eventually became iOS – concurrently with the first iPhone.

3 Notable software bugs and issues in iOS.

Īs of 2021, the latest version of iOS is available for phones up to seven years old. Updates can be done over-the-air through settings (since iOS 5), or via the iTunes or Finder applications. The latest beta version of iOS and iPadOS, 15.2 beta 3, was released on November 16, 2021. The latest stable version of iOS and iPadOS, 15.1, was released on October 25, 2021. Starting with the 13.0 release, the operating system for iPad was split off as iPadOS. Since its initial release, it has been used as the operating system for iPhone, iPad, iPod Touch, and HomePod, seeing continuous development since then, resulting in new major releases of the software typically being announced at the annual Apple Worldwide Developers Conference and later released in September, coinciding with the release of new iPhone models. The version history of the mobile operating system iOS, developed by Apple Inc., began with the release of iPhone OS for the original iPhone on June 29, 2007. History of the mobile operating system developed by Apple Inc.

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