Do not know if there is any coincidence here or the fact that Sony Mobile is a huge change in the "care" for the Xperia sample batch updates through the recent FW regularly, especially after updating information on the Xperia FW was slow to ear "boss" Hirai. The joy of the people today use Xperia TX, T and V, the Xperia end of 2012 3.
Accordingly Xperia TX received a new certification FW 9.1.G.0.3 code changes from current FW 9.1.A/BXXXX, the improvement is not clear, but what is difficult to Android 4.2.2. Xperia T / V also received a certificate with the new FW 9.1.A.1.145 is rather similar to the current version 9.1.A.1.141, obviously this is just the fix minor bugs and increase stability. Such is also pretty good! The less you will have to wait another day to update the new firmware.