Compared to its peers, Sony has been rather generous in bringing the latest Android OS update to yesteryear’s Xperia phones. But it looks like the dessert treat will stop at Ice Cream Sandwich for owners of Xperia phones that were released in 2011.

The discouraging news came from Sony Mobile UK Product Manager John Cooper, who has been answering questions about the Jelly Bean upgrade on the company’s Facebook page. In separate instances, Cooper confirmed that the Xperia arc S and the Xperia Mini Pro will not be getting the buttery smooth update to Android 4.1 Jelly Bean.

If Sony doesn’t see the Xperia arc S, which has better specs compared to other 2011 Xperia phones, as fit for the Android 4.1 update, it’s a telling sign that the rest on the 2011 Xperia lineup will most likely be deprived of Jelly Bean as well.

But all is not lost yet, as we have yet to hear from Sony’s HQ directly. They’re usually pretty good at keeping customers aware of where they stand with OS updates. Let’s wait until the company reveals their Android 4.1 upgrade schedule, which could take a while to come, since they’re rather busy at the moment rolling out ICS.

If it makes any difference, we don’t even have any confirmation yet on whether the whole 2012 Xperia lineup will get their Jelly Bean. We’ll let you know once we hear more from Sony.