As promised, Google has released the updated Developer Preview images of Android 5.0 Lollipop for the Nexus 5 and Nexus 7 (2013) along with the final Android 5.0 SDK for developers.
The updated SDK can also be downloaded from the same link. If you already have Android Studio installed on your PC though, you should get a notification to install the new Android 5.0 (API 21) related files and system images when you next launch it as well.
Additionally, the company has also updated all the developer documents to reflect the new features and changes introduced in Android 5.0 Lollipop.
Here you can download the Images :
- Download the developer preview LPX13D Nexus 5
- Download the developer preview LPX13D Nexus 7 (2013) Wi-Fi
[Source: Android Developer]