IOS 15 has been iterated to Beta 8 and is getting closer to the GM semi-official release.

So how optimized is iOS 15? Is it worth it for iOS 14 users to upgrade?

IAB’s latest video compares the performance of six iPhone SE/6S/7/8/XR/11 models in iOS 14.7.1 and iOS 15 Beta 8.

Overall, iOS 14.7.1 generally starts up faster than iOS 15.
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