Apple today released iOS 17.2.1, the second major updates to the iOS 17 operating systems that came out in September.
The iOS 17.2.1 update includes unspecified bug fixes, according to Apple's release notes for the update.
This update provides important bug fixes and is recommended for all users.
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Apple security releases - Apple Support
This document lists security updates and Rapid Security Responses for Apple software.

Apple Releases iOS 17.2.1 With Bug Fixes
Apple today released iOS 17.2.1, a minor update to the iOS 17 operating system that first came out in September. iOS 17.2.1 comes shortly after Apple...
