The HTC One, One Max and One Mini are expected to pick up Android 4.4.2 KitKat updates later this month or in next month. At least so says reputable Twitter source @LlabTooFeR. Also in the cards, the same update for the HTC One DualSIM variant.
All new devices such as One,One DualSIM, One max, One mini will get 4.4.2 update in time frame January-February…
— LlabTooFeR (@LlabTooFeR) January 2, 2014
In addition to the newest release of Android, the update is expected to deliver HTC‘s Sense 5.5 UI. As for the 6.0 release, that could be a few months further off. Other mentions from the source suggest we might wait until “late Autumn” for that particular feature.