We are not confirmed as to whether Google has officially rolled out the Lollipop Update for its older Nexus 4 or not, but a certain user on reddit claims to have received the OTA notification for a system update on his Nexus 4.
This is the image which he has shared and though almost every redditor finds it extremly hard to beleive, this imgae looks real. Take a look and tell us whether you received a similar Over-The-Air update on your older Nexus devices or not.
