The students at our school now have the option to upgrade to iOS 8.1 and we have the option to do so as well.
Are the benefits of it worth the hassle of clearing a significant chunk of memory and then taking the time for the download and installation? And will it make the iPad2 run more slowly?
Here’s a useful article which describes and shows the differences between iOS 7 and iOS 8.1 so you can decide whether to take the (irreversible) plunge:
Perhaps this conclusion will be helpful:
Should You Install iOS 8.1.1 on the iPad 2?
If you are already on iOS 8 or iOS 8.1, you should install iOS 8.1.1 on the iPad 2 today. For most users there is a benefit with slightly better performance and the overall experience is much better for a vocal group of users.
Still, it’s not a magical update. If you are still on iOS 7.1.2 you should stay on that update for now based on several user reviews.
If you are on iOS 7 and really want an iOS 8 feature on your iPad 2, this is the update to jump to, but for the most part staying on iOS 7.1.2 is a safer option.
From: Gotta Be Mobile
Wondering about when iOS 9 is likely to come along?
You’ll note in this article that iOS 9 is likely to not be compatible with the iPad2!