The HTC 10 Nougat update has started hitting units in Hong Kong. Arriving as version 2.41.708.3 and weighing in at 1.23GB, the update brings along Android version 7.0, the Android security patch for the month of January, as well as some system enhancements. The update, in case you missed, has already been pushed out in Russia, the Middle East, and Turkey. In Europe, only the UK has got the update so far - the company had to pause the roll out in mainland Europe due to some technical reasons. Source
Source: http://www.gsmarena.com/nougat_update_starts_hitting_htc_10_units_in_hong_kong-news-23194.php