10 Things to Know About the iPhone 6 iOS 8.4 Update

You Can No Longer Downgrade to iOS 8.3

For a week, Apple essentially let you trial the iOS 8.4 update. Up until today, you could downgrade down to iOS 8.3 from iOS 8.4 if it wasn't performing well on your iPhone 6. No longer.

According to several iPhone 6 users, Apple's stopped signing off on the iOS 8.3 update which means that those of you that do decide to upgrade to iOS 8.4 from whatever you're on are now stuck on iOS 8.4 until Apple releases the next iOS update. That could be iOS 8.4.1. It could be iOS 9. We don't know yet. 

This is important to consider if you're having a stable experience on iOS 8.3 or below. There's no going back and you'll want to make sure the iOS 8.4 update and its features are going to be worth it. For some of you, they may not be.