For those of you who want to install the latest Android 4.4.2 stock ND8 firmware, you do not have to unroot back to stock using ODIN, which can be time consuming, instead grab the zip version which you can install with CWM or TWRP recovery.
This version is 100% stock and also comes with root so you can try the latest Android 4.4.2 without losing root.
For those of you with an older bootloader (You’ve rooted your phone on 4.3 or earlier), you will need to flash KToonsez kernel to make it boot.
If you already have Android 4.4.2 bootloader or later, you can just flash the ROM and should boot fine. Also, if coming from stock rooted ROM, you may be able to install without doing a factory reset. Just make a backup ROM and install ROM without factory reset if that’s the case.