If there's one thing you can give credit to HTC for, it's being quick with the Android update on the HTC One. After years of lagging behind Google with respect to the latest updates, the company has been consistently quick in delivering updates for their newest flagship device. Earlier this week the company promised that they will soon start rolling out the Android 4.3 update for the HTC...
Source: http://www.gsmarena.com/android_43_update_for_htc_one_now_rolling_out_internationally_-news-6862.php
