Sony releases software updates for Android-powered Xperia phones
TechRadar

Sony has just released software updates for a bunch of its ICS-powered Xperia phones in order to get rid of a number of pesky bugs and improve performance all around. The phones affected by the update are the Xperia P, Xperia U, Xperia sola, and Xperia go. Each and every single one of these phones will retain the Android 4.0 Ice Cream Sandwich OS. They will instead gain improvements to the following features: Wi-Fi, camera capabilities, messaging, and NFC.

What Else You Need To Know

  • Sony is set to announce the availability of Jelly Bean updates for their Xperia devices some time in the not-too-distant future.

Other sources

According to Sony “direct availability in the phone may vary across different markets and carriers.” Hey, you’ve waited this long; you can wait a little longer, right? - Kristofer Wouk, Android Authority  
TechRadar
Sony Xperia U Jelly Bean update on its way  

It seems that Sony has really got its update process in order, as the Xperia U could be next up for Jelly Bean.

Mobile Burn
Sony delivers improved Android 4.0 to Xperia P, Xperia U, Xperia go, and Xperia sola  

Sony today announced that it is releasing a new software update to improve the performance and reliability of the Android 4.0 Ice Cream Sandwich upgrade it first released in September.

Android Guys
Sony issues minor updates to Xperia P, U, go and sola  

The Ice Cream Sandwich firmware includes improvements to: stability, WiFi, tethering/portable hotspot, camera (capture and playback), NFC and Messaging.

PhoneDog
Sony Xperia P, Xperia U, Xperia go and Xperia sola now receiving maintenance updates
Omio
Sony Xperia phones get a new OS  

This comes at a time when the likes of the HTC One X and Samsung Galaxy S have already been updated to Jelly Bean, a version of Android ahead of Ice Cream Sandwich.

Other
Sony Xperia P, U, Go And Sola Gets A Software Update
Softpedia
Sony Releases New Ice Cream Sandwich Updates for Xperia P, U, Go and Sola
Other
Software update on the way for Sony Xperia P, U, Go and Sola