Google-Developers
Google has released Android 5.1.1 (Build LMY47V) factory images for three more Nexus devices today, adding images for the Wi-Fi models of the Nexus 7 (2012) and Nexus 7 (2013), as well as the Nexus 10.

The update brings some back-end updates to the devices, fixing minor bugs, so don’t expect usability updates. The images are live and ready to flash right now, from the Google Nexus Factory Images page. We’ve included links to the various tablets on the page here:

Also uploaded are the binaries for the Android 5.1.1 build, so any developers can begin incorporating those into Android 5.1.1 builds after downloading them from the Binaries page.

We should see OTA updates heading out to devices quite soon.

Source: Nexus Factory Images.