Interestingly, this update showed no icon and no changelog and at first, I thought this update might have been released accidentally.
But it seems to be a security update, according to Apple it’s related to HomeKit (Apple’s Smart Home framework):
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)
Impact: Processing a maliciously crafted HomeKit accessory name may cause a denial of service
Description: A resource exhaustion issue was addressed with improved input validation.
CVE-2022-22588: Trevor Spiniolas (@TrevorSpiniolas)Apple Product Security APPLE-SA-2022-01-12-1 iOS 15.2.1 and iPadOS 15.2.1
Whether this includes bug fixes and more, has yet to be disclosed by Apple.
Update: There’s now more info available and this update does indeed fix bugs, namely the following two:
- Messages may not load photos sent using an iCloud link
- Third-party CarPlay apps may not respond to input