Today, Google announced that the factory images and the binaries for Android 4.4.3 update are now available. These tools will be compatible with Nexus 5, Nexus 7 (2013), Nexus 4, Nexus 7 WiFi (2012) and Nexus 10 WiFi.
With these files we can now manually flash our Nexus devices only if we’re used to this kind of process, and not brick our smartphones or tablets. Otherwise, we can expect for the official over-the-air update to show up, but we don’t know when it will become available.
Anyway, this update shouldn’t be far away. Once available we’ll notice you here when you can update you Nexus tablet or smartphone in a quick and risck-free method with the over-the-air process.