Apple now no longer allows downgrade from iOS 16.3. This comes together with the news that previous iOS releases were subject to exploit allowing to get user's location if that permission was not given to the application.
Apple did not disclose details of this exploit.
Available for: iPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generation and later
Impact: An app may be able to bypass Privacy preferences
Description: A logic issue was addressed with improved state management.
CVE-2023-23503: an anonymous researcherAbout the security content of iOS 16.3 and iPadOS 16.3
Apple Support: About the security content of iOS 16.3 and iPadOS 16.3
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