HTC One (M7) will get the Sense 6 UI treatment before the end of next month. The word about the update was delivered on Twitter by Jason Mackenzie - the President of HTC America.
Reminder that Sense 6 will push to current HTC One users by end of May. #htcadvantage— Jason Mackenzie (@JasonMacHTC) April 14, 2014
The above deadline is for HTC One (M7) and its carrier-specific models in the United States and Canada. There is no word on when the new UI will make its way to the international version handset, though we truly doubt that the wait will be any longer.