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The new iPhone 4 is displayed at the 2010 Apple World Wide Developers conference June 7, 2010 in San Francisco, California.
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The newest version of Apple’s mobile operating system is reportedly being optimized to run well on devices as old as the iPhone 4S and iPad Mini, company insiders told 9to5Mac.

Rather than saddle older, underpowered phones with increasingly powerful features, Apple has reportedly built a stripped-down “core” version of its new mobile operating system for older devices. Meanwhile, newer phones, like the iPhone 6 and 6 Plus, will get access to iOS 9’s more powerful, processor-intensive new features.

The move may surprise Apple users who have seen performance steadily decline on outdated devices, raising theories that Apple was deliberately pushing users to buy the latest model.

Apple is expected to unveil the latest version of iOS 9 at the Worldwide Developers Conference in June.

Read more at 9to5Mac.

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