Finally, the update that I have been waiting for has arrived on my HTC Butterfly 2. HTC has mentioned that the newer HTC phones will be updated to KitKat 4.4.4 in November but it never happened. And just when I was about to give up the hope of an update before the New Year, it arrived.
One of the most awaited feature is NOT in the KitKat 4.4.4. It is actually HTC EYE Experience. Check it out.
I have yet to explore other changes. If you have your latest HTC phones, check if you have this update. I have checked the older phone like the HTC One (M7). It is not updated yet. Do note that the update is almost 600 MB. Make sure that you have WiFi connection before you download. Have fun!