It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS.
It is the world's second-most widely installed mobile operating system, after Android. It is the operating system that powers many of the company's mobile devices, including the iPhone the term also includes the system software for iPads (predating iPadOS, which was introduced in 2019) as well as on the iPod Touch devices (which were discontinued in mid-2022). IOS (formerly iPhone OS) is a mobile operating system developed by Apple Inc. We've reached out to ask whether the company intends to provide iOS 15 security updates for older devices going forward and will update this story if we receive a response.Proprietary software except for open-source components Per usual, Apple hasn't provided any hard end-of-support dates for iOS 15 or iPadOS 15. Apple previously supported old iPhone 5S and iPhone 6 models that couldn't upgrade to iOS 13, releasing security-only updates for iOS 12 semi-regularly for nearly three years after iOS 13 came out. (iPhones and iPads may be treated differently this year because the first version of iPadOS 16 released to the public came out a month after the first release of iOS 16.)Īssuming Apple continues to release these iOS 15 updates for older devices, they'll keep owners of older phones ( mostly) secure for a while longer even though they're no longer supported by newer iOS versions. The company did something similar last year and supported iOS 14 for a couple of months after iOS 15 came out but eventually ended iOS 14 support. Further Reading Apple clarifies security update policy: Only the latest OSes are fully patchedĪny iPad owner running iPadOS 15 can still download the 15.7.2 update instead of iPadOS 16, but newer iPhones will need to install iOS 16.2 to get all the latest security patches.
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