Android 5.1.1 is now rolling out to Nexus 9 owners after a long delay and a brief dalliance with Android 5.0.2.
Google’s 64-bit HTC-built tablet hadn’t received a major update since November, when Android 5.0.1 rolled out, and after most of its peers began receiving notifications for updates, Google remained silent on the matter.
— Nexus (@googlenexus) May 7, 2015
It’s unclear why Android 5.1 was so delayed on the Nexus 9 tablet, but it likely had to do with Android needing some extra tweaking to work properly with the Nvidia-built SoC.
Whatever the reason, begin checking your Nexus for updates today, though it may take a few weeks for the rollout to complete. We’ll update this post when the factory image is posted on Google’s site.