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Apple announced iOS 15 and iPadOS 15 on June 7, 2021, at its annual WWDC 2021 event, with a developer beta released on the same day and a public beta released a few weeks later, at the end of June 2021. All devices that supported iOS 13, iPadOS 13, iOS 14, and iPadOS 14 also support iOS 15 and iPadOS 15.
Sep 20, 2021 · iOS 15 is a free software update that is available starting today for iPhone 6s and later. For more information, visit apple.com/ios/ios-15. Some features may not be available in all regions or all languages.
Release history. See also. References. iOS 15 is the fifteenth major release of the iOS mobile operating system developed by Apple for its iPhone and iPod Touch lines of products. It was announced at the company's Worldwide Developers Conference on June 7, 2021, as the successor to iOS 14 and released to the public on September 20, 2021. [3]
Jun 7, 2021 · The developer preview of iOS 15 is available to Apple Developer Program members at developer.apple.com starting today, and a public beta will be available to iOS users next month at beta.apple.com. New software features will be available this fall as a free software update for iPhone 6s and later.
5 days ago · iOS 17.4.1. This update provides important bug fixes and security updates and is recommended for all users. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222. iOS 17.4.
From the introduction of machines not supporting the classic Mac OS in 2003 until the introduction of iPhone OS in early 2007, Mac OS X was Apple's only software platform. macOS retained the major version number 10 throughout its development history until the release of macOS 11 Big Sur in 2020.
Apple provides major updates to the iOS operating system annually via iTunes and, since iOS 5, also over-the-air. The device checks an XML-based PLIST file on mesu.apple.com [citation needed] for updates. Updates are delivered as unencrypted ZIP files. Updates are checked for regularly, and are downloaded and installed automatically if enabled.
