As you’re probably well aware by now, Android 4.2 has hit the Android Open Source Project, and we’re seeing the availability of updates for a number of Nexus-series devices. For most of them, you can check out our how-to guide for help getting started with your upgrade, but not everyone will be making the move. For some models, like the brand new 3G Nexus 7, support for Android 4.2 will be forthcoming, but issues with drivers prevent Google from releasing the software right now. In other cases, though, this could mark the permanent end of ongoing Android support.

In announcing all the Android 4.2 releases arriving today, Google’s Jean-Baptiste Queru notes that “there is no support for 4.2 on Nexus S and Xoom. Those devices should continue using 4.1.2″.

The Nexus One has already fallen by the Android update wayside, not seeing an official release past Gingerbread. Considering the age of the Nexus S, it’s not entirely unheard of that Google could be getting ready to close up shop on the handset. The Xoom is a little more surprising to see in this situation, as while it’s not much newer than the Nexus S, it does enjoy significantly more RAM and flash storage.

Even if Google will no longer provide updates for the Nexus S and Xoom, we’re confident that you’ll continue to see new releases from the custom ROM community.

Source: Google