Coming roughly a week after the last updated build for the Nexus 6, the new factory image for the Nexus 5 and Nexus 6 clocks in at build number LMY47I.
While it's not clear what this new build brings, this makes the third Android 5.1 build released for the Nexus 6 in as many weeks, and the second for the Nexus 5. Chances are, today's update is a relatively minor one focusing on some bug fixes, much like the previous build released for the Nexus 6. If you'd like to get your hands on the update and start flashing it to your device, you can hit up the source link below to grab the factory image for yourself. Also be sure to check out our guide to manually updating your Nexus device from the link below.
Source: Nexus Factory Images