Quick question. Anyone out there recommend updating my iPad 2 and iPad 4 to iOS 9.2? I'm quite worried that the specs, especially the iPad 2 (500mb memory) will just cause nothing but crashes and freezes.

One of the main features of iOS 9 is that is should run better on older hardware. What iOS have you got on the iPad 2 now?

Running 8.2 on the iPad 2...it's already very slow to respond, especially when typing, and occasionally crashing on certain app, namely chrome.

Running 7.1 on the iPad 4

I did a Google search, and the result was:

If your iPad 2 already runs iOS 8, UPGRADE! Performance can't really get any worse than iOS 8, and might just get better.

A full reset after installation on iOS 9 also seems to be recommended.

Been running iOS9 on an iPad2 since it went public in Sept 2015.
Have had no performance issues at all and runs perfectly.
Well worth doing a reset, and with your iCloud backup pull in all your settings/apps.

Also been beta testing with another one too for the iOS9 builds that started in July 2015. Each build has been fine on the iPad2, current 9.3 beta build from end of Jan works fine.

I have 9.2 on whatever the last full-size iPad is before they moved to lightning.

It's bearable. Not fantastically fast, and sometimes slightly annoyingly laggy, but usable. I haven't tried a factory reset to see if it would make it any better.

I think it's better than previous 9.x versions were though.

My iPad2 runs smooth with 9.2
Not seen any crashing and no lagging that worries me

Old devices with low Ram really needed the ability to use Ad blocking to speed up and prevent problems on web browsing..

Yet, only for the needy 32 bit devices, Apple still has not allowed addons in IOS 9 So tell me, in what way is that a main feature?