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iOS 8 Extensions: How they work and why they matter to you

Marco Tabini | Sept. 18, 2014
Even though iOS 8 superficially looks like its immediate predecessor, there are some new under-the-hood technologies that'll have a huge impact on the way we all use our iOS devices. One of the most significant of these is something Apple calls Extensions.

We should also note that Apple has decided to impose some pretty strict restrictions on when and how extensions can run. In most cases, an extension will only kick off when called upon explicitly by a user, for example, and will only be allowed to use a relatively small slice of the system's CPU and memory. This should, in principle, limit the impact that extensions will have on your device's battery life and performance.


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