Sony's latest models, Xperia T and Xperia TX are shipping across global markets, and Xperia V is on the way shortly. These smartphones will begin to receive the upgrade to Android 4.1 (Jelly Bean) from mid-Q1 2013. Sony also confirmed that the global versions of Xperia S, Xperia acro S, Xperia ion, Xperia P, Xperia go and Xperia J will be upgraded to Android 4.1, without clarifying when.

On the other hand, Sony will not provide the Android 4.0.4 upgrade for its 2011 Xperia portfolio across most markets and the majority of models, so these devices will not be upgraded beyond Ice Cream Sandwich.

"Beyond Ice Cream Sandwich we would not able to guarantee owners of these smartphones the user experience you expect and we demand," Sony said. "We will however, continue to support all these products with firmware maintenance releases."