I don't remember how long it's been or even which version of iOS last had a current, signed jailbreak, but unc0ver 3.5 does exactly that now. No more waiting til your iOS version is superceded, today you can update & jailbreak immediately. Maybe this will restore some life to the JB scene.

I've used a previous unc0ver on my iPad Air 2, it's a full, untethered, permanent jailbreak that's simple to implement & very stable. Today I'll update my iOS & jailbreak again with unc0ver 3.5.

There's still a few good tweaks & modifications available that can't be done on stock iOS.