Apart from iOS 16.6 RC updates, Apple also seeded iOS 15.7.8 release candidate builds for older iPhone devices. Alongside this, the company has pushed off new software for users carrying iPad and Mac gadgets with outdated operating systems.
The information hints that these builds help in maintaining the overall efficiency of the devices. It further checks on the stability aspects and improves the major aspects of the device. Hence, you should install these versions as you receive a prompt for the same.
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According to the details, Apple has released the iOS 15.7.8 RC firmware with the 19H364 version for iPhone devices. Meanwhile, Mac users can identify the macOS Big Sur 11.7.9 and Monterey 12.6.8 updates with the 20G1426 and 21G725 build numbers, respectively.
