Google has just rolled out a new Android 5.1.1 bug-fix update with build number LMY48M via factory images for a spate of Nexus devices including Nexus 4, Nexus 5, Nexus 6, Nexus 7, Nexus 9 and Nexus 10. This update comes close on the heels of recently released OTA update for the T-Mobile version of Nexus 4, Nexus 5, Nexus 6, Nexus 7 and Nexus 9.
Interested Nexus users can go ahead and flash the latest Android 5.1.1 Lollipop update on their Nexus device, using the factory images posted on Google's official developer website. The factory images for the most stable build of Android 5.1.1 can be flashed through a quick fastboot setup.
Check out the official download links for each of these Nexus devices posted as factory images (below):
For assistance on installing the latest Android 5.1.1 factory image on your Nexus device, check out the step-by-step guide posted here.