Its basically fj14 with some supposed fixes and patches. I updated but I lost root in doing so. It left /system/xbin/su but changed the permissions to where I couldn't obtain root. So now I have to flash the repacked fl26 kernel lol!
But yeah I think it was supposed to fix the ezynos exploit, but upon checkig after the update, permissions on /dev/exynos-mem is still read write to all. So I'm jot sure if they even fixed that lol!