iOS Security Update Released (15.4)
Apple has released iOS 15.4 with 39 security fixes.
Users should update as soon as possible to avoid potential exploitation.
Updates for iPadOS, WatchOS, and tvOS should also be installed.
How to update iOS
iOS 15.4 Release Notes
How to update watchOS
watchOS 8.5 Release Notes
How to update tvOS
tvOS 15.4 Release Notes