Just received the nexus 7 (2013) but there's no lollipop update? topic

Received the nexus 7 for christmas and there were initially several updates 4.3>4.4.2>4.4.3>4.4.4 and was expecting a lollipop update after but it says I am up to date. Didn't the lollipop update for this nexus come out over a month ago? Any ideas?