- Aug 17, 2014
- 11,777
According to Apple's release notes, the updates include bug fixes and security improvements. iOS 15.6.1 and iPadOS 15.6.1 address kernel and WebKit vulnerabilities that could lead to arbitrary code execution. Apple says that it is aware that these vulnerabilities may have been actively explited in the wild, so it is important to update right away.

Apple Releases iOS 15.6.1 and iPadOS 15.6.1 With Bug Fixes
Apple today released iOS and iPadOS 15.6.1, minor updates to the iOS and iPadOS 15 operating systems initially released in September 2021. iOS 15.6.1...

Available for: iPhone 6s and later, iPad Pro (all models), iPad Air 2 and later, iPad 5th generation and later, iPad mini 4 and later, and iPod touch (7th generation)
About the security content of iOS 15.6.1 and iPadOS 15.6.1
This document describes the security content of iOS 15.6.1 and iPadOS 15.6.1.
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