As of this morning, Nexus 4, Nexus 5, Nexus 7 (both generations) and the Nexus 10 will start seeing the OTA operating system update. So far, the Nexus 9 and the Nexus 6 are the only devices to receive the updates officially via Google.
In addition, the update has been added to AOSP, so you can download it manually.
To be expected, the rollout will be done in waves, meaning it should take a few days before everyone gets it.
Source:
Written by: Andre Yoskowitz @ 13 Nov 2014 22:21