It seems that HTC is ready to push the OTA updates for Android Lollipop. Earlier HTC promised that they would release the lollipop update within 3 months. Many people were eagerly waiting for the Android Lollipop update for HTC One M8 (myself included).
I have attached a tweet from @moversi who is VP, product management at HTC. Here it is:
HTC One (M8) Unlock and Dev Owners! We have received TA from Google on Lollipop + Sense 6. OTA will be out starting tonight. #HTCAdvantage
— Mo (@moversi) January 13, 2015
You can see the replies which suggest that the update is already rolling out in some regions. He didnt say anything about different regions. He just said that update will be rolling out from tonight. Some users have started getting notifications on their HTC One M8 smartphone. I havent got any notification till now but I am sure I will get it within this week itself. I live in India.
If you have an HTC One M8 unlocked device, then go to software updates and check if the Android Lollipop update is available for your device.