The Android 6.0 Marshmallow update for the HTC One M8 will begin rolling out in a couple of weeks, according to the usually reliable leakster LlabTooFeR, who made the revelation in a tweet.
Final M8 Android 6.0 and Sense 7.0 update for Europe will be available in about 2 weeks. It will be in build range 6.12.401.x ...— LlabTooFeR (@LlabTooFeR) December 2, 2015
However, what's worth noting here is that the update time frame mentioned in the tweet is specifically for the One M8 devices in Europe. The update will also include Sense 7.0 UI, LlabTooFeR noted.
For those who are not in the know, the update has already received the Bluetooth SIG certification in October, and HTC has also previously noted that the update will start hitting the handsets before the end of the year 2015.