How to Downgrade From iOS 15 to iOS 14 - MacRumors
Apple is no longer signing iOS 14.6 — it's iOS 14.7, 14.7.1 or nothing now | iMore
Evaluation of iPhone 8 Plus with iOS 14.6 update: The performance score is slightly better than iOS 14.5.1, and has the battery life improved? (updating) - ElectroDealPro
Apple Stops Signing iOS 14.6 Following iOS 14.7 Release - MacRumors
Some iPhone users report excess battery drain on iOS 14.6 – are you affected? - 9to5Mac
Here's how you can jailbreak A7-A11 devices running iOS 14.6-14.8.1 with checkra1n