Update: The Android 5.1.1 Lollipop update (LMY48B) is available now for the Nexus 5. It is available as a factory image on the Google Developers site, but the Android 5.1.1 update for the Nexus 5 is happening OTA as well.
You can follow our guide on how to get Android 5.1.1 on the Nexus 5 if you'd like to do it yourself, or you can sit back and wait for the OTA. To check if the OTA is waiting for you already, go to Settings > About Phone > System updates.
Sprint Nexus 5 Android update
Sprint announced a new build of Android 5.1.1 for the Nexus 5 - LMY48B - on its software update page on May 13. The update lists nothing other than an ''update to Android 5.1.1'' and ''security enhancements'' as new features.
T-Mobile Nexus 5 Android update
The T-Mobile Nexus 5 update arrived in the form of Android 5.1 in mid-March.
AT&T Nexus 5 Android update
The AT&T Nexus 5 update to Android 5.1 arrived in late March/early April.
Nexus 5 factory images
The LMY48B build of Android 5.1.1 for the Nexus 5 is available on the Nexus factory image page. The update adds some performance and stability fixes and hopefully irons out a few of the Nexus 5 problems on Android Lollipop.
The most prominent features of Android 5.1 are support for multiple SIM cards, HD voice calls on compatible phones, and Device Protection. The latter feature locks your phone until you sign in with your Google account, even if it's reset to factory settings. This could prove a great tool in the fight to discourage phone theft.
To find out more, visit our Android 5.1 Lollipop update page.
How to root a Nexus 5 running Android Lollipop
If you've got the Lollipop update but want some additional freedom to shift things around and customize as you see fit, then the next step is to go to our how-to page on how to root the Nexus 5 on Android Lollipop.
Android 5.0 Lollipop problems
If you've taken the plunge with the Android Lollipop update for the Nexus 5 and found yourself having a few issues, then don't despair - you're not alone and we've got your back. We have a page dedicated to Android 5.0 Lollipop problems and their solutions. This will be updated as more bugs come to light, so stay tuned for more solutions to Android Lollipop problems. For more specific Nexus 5 Lollipop problems, check out our solutions to the most common issues.
How to downgrade a Nexus
The Android Lollipop update is not for everyone. Lollipop's effect on the the Nexus 5, in it's current state, is being questioned (here's at least one good reason why you shouldn't upgrade your Nexus 5 to Lollipop). A few people have already asked us how to downgrade their Nexus 5 back to an older version of Android like Android 4.4.4. So we've put together a quick tutorial to walk you through how to downgrade a Nexus.
Are you excited about getting Android 5.1 on your Nexus 5? Let us know about your experiences with Android Lollipop in the comments below.