Chosen Solution

So i got this phone that i will use as my main one for a while. It still has ios 8.1.1, which i think is jailbreakable, but i haven’t checked yet. I’m not sure if i want to update to ios 10 or not. I HATE the press home to unlock on devices with no touch id, and there is no option to change it back to slide to unlock. But, ios 8 is getting kind of old, and some of the features i dont know how to use. What should i do? stay with 8 or go to 10?

I updated mine via iTunes on my MacPro without issues and am happy with it.