If you care about rooting and installing custom roms I wouldn't update to 4.4.2 yet. You can s-off yet on the 1.56 hboot and install custom roms on the HTC one international subforum. If you don't then you can install the update thru your phone. Also another thing to mention is you can flashed the stock 4.4.2 Rom if you unlocked bootloader and install custom recovery
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