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Adoption of Apple's new iOS 15 appears to be slower than the previous iOS 14, with 8.5% of users having downloaded the update two days after its launch.
That appears to be about half the speed as iOS 14's adoption two days after its launch. By day two of the iOS 14 initial availability, 14.5% of users had downloaded the iOS 14 update. As of writing, iOS 14 has an 85.92% share of the iPhone installed base, with 5.53% of users running an older software version.
When Apple announced iOS 15, it said that it wouldn't force users to download the update and would continue to provide critical security updates for iOS 14. Apple released iOS 14.8 and a batch of other software updates on Sept. 13.
Apple released iOS 15 on Monday, Sept. 20. The update packs new features like Live Text, Private Relay, Safari updates, Notes improvements, and more.