Three years after it was launched the first Asus / Google Nexus 7 (2012 model) keeps going strong with the very latest Android 5.1.1.
If you didn’t already get the latest Android update over the air (OTA), you can flash it yourself if you will through the official factory images from Google Developers.
Android 5.1.1 is available for the Wi-Fi model, while the 3G model will have to do with Android 5.1.0 for a little while longer.
Android 5.1.1 have already rolled out to Nexus 10, Nexus 7 FHD, and in some places Nexus 9 too.
– Jim Miller