One thing about modern day devices would be this – receiving a firmware update has been taken for granted, and we as consumers tend to think that companies behind these devices owe us some firmware updates at the very least – a school of thought that I myself subscribe to, and I am unashamed to say so. After all, we have paid good money for that piece of gizmo, so is it that much to ask for a new firmware for current hardware to increase its performance, it might be a wee bit too much to fork out for a totally new piece of hardware once a year.
Having said that, there is a new firmware update in the pipeline for the Sony Xperia P, where this is touted to be a low-key release. You should end up with the firmware build number 6.0.B.3.162, but to date, no official changelog is available for our perusal, so there is no telling just what is so different from the current 6.0.B.1.564 firmware. Your Android version will remain at 2.3.7 though.