is there anything new for an ip5 ? i know it already received minimal updates since OS9, i really don't want to go too far with updates and find myself with a slower phone.
i'm not saying here that apple do this on purpose, but let's be honest, so far it happened constantly with each device, the latest supported version is never the fastest.
If you're already on iOS9, just go ahead and update. If not, then just stay where you are if you're in no need of any of the features of iOS9.