Sony has started rolling out Android 4.1 Jelly Bean update for its Xperia T and Xperia V smartphones recently. The update for both the smartphones is currently available in select European countries, and if you own one of these smartphones and live in Europe, go check on your phone.
You can connect your Xperia V or T to your PC using PC Companion software to check for the update, as we are not currently sure about the OTA release.
Xperia T Jelly Bean update details:Version: 9.1.A.0.489
Xperia V Jelly Bean update details:Software version: 9.1.A.0.490
There is no word on the change-log, but you can expect project butter performance improvements, UI updates and Google Now on your Xperia phones after the update. We are looking for more details and will let you know as soon as we get them.