After the announcement of Android 4.3 last week, local units of the Nexus 7 and the Nexus 4 are already receiving updates of the new Jellybean flavor.
The first device to get the update was the Nexus 4 with owners reporting to have received the update several days ago while the Nexus 7 remains at 4.2.2.

Today, the Nexus 7 finally got the notification of the update to 4.3. We’re still not sure whether the Nexus 10 has received the same update.
For details on what new features were improved or introduced in Android 4.3, check out our story here.
Hat tip to JC Sales.

Received the update for my local Nexus 10 days ago. No noticeable changes except for most of my installed apps do not work. Keeps on saying “Android version not supported.” Examples are MX Player and Minion Rush. Guess we’re gonna have to wait for the developers to update their apps and make it Android 4.3 compatible.