Google officially announced the 4.4 KitKat a couple of days and today, Sony has revealed its Android upgrade roadmap. In an official blog post, the Japanese manufacturer has also announced its plans with the 4.3 Jelly Bean roll out. As promised, Sony will be bringing the Android 4.3 Jelly Bean to its Xperia Z, Xperia ZL, Xperia ZR, Xperia SP, Xperia Z Ultra, Xperia Z1 and the Xperia Tablet Z....
Source: http://www.gsmarena.com/sony_reveals_its_android_44_kitkat_upgrade_plans_-news-7144.php