I'm (very happily) running a jailbroken iPhone 6 on 8.1.2. I've got it set up just the way I want with some fantastic Cydia apps & tweaks. Everything works perfect. Until quite recently I've had no regrets about not upgrading (and missing the small windows) to re-jailbreak. The problem is now that more and more apps are requiring iOS 9 or higher. A couple of which are now required by my organization. I assume I already know the (no) answer, but thought I'd at least try - is there any way to fool the iOS compatibility test for these apps?