It looks like Sony is polishing up its Android 4.3 firmware builds, as following on from a new update certified for the Xperia SP, comes a new update for the Xperia T (LT30p, LT30a) and Xperia V (LT25i).
New Android 4.3 firmware build 9.2.A.0.278 likely quashes a few more bugs over the previous certified build (9.2.A.0.276). Expect it to launch within the next few weeks (that’s if this is the final version). Sorry Xperia TX owners, there is still no new certified updates, so the wait continues a bit longer. We’ll bring you more news as we have it.