iOS 16

New security fixes released - https://support.apple.com/en-ca/HT201222

way before iOS 16.6

iOS 16.5.1 - 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

and

iOS 15.7.7 - iPhone 6s (all models), iPhone 7 (all models), iPhone SE (1st generation), iPad Air 2, iPad mini (4th generation), and iPod touch (7th generation)

 

Apple Releases Revised iOS and macOS Security Updates to Fix Actively Exploited Vulnerability and Safari Bug

https://www.macrumors.com/2023/07/12/apple-releases-revised-security-updates/

 

Apple Releases iOS 16.6 and iPadOS 16.6 With Bug Fixes and Security Updates

https://www.macrumors.com/2023/07/24/apple-releases-ios-16-6/

 

iOS 15.7.8 and iPadOS 15.7.8 for lower iDevice models - https://support.apple.com/en-ph/HT213842