Sony validation, Xperia Z, Xperia ZL, ZR Xperia, Xperia Tablet Z, Z Xperia Xperia Ultra SP the phone models will be upgraded to Android 4.3

Sony  validation,  Xperia Z, Xperia ZL, ZR Xperia, Xperia Tablet Z, Z Xperia Xperia Ultra SP the phone models will be upgraded to Android 4.3
Currently Sony has only said that the list of devices can be upgraded to Android 4.3. It has not announced upgrade schedule.

Not long after Google announced the latest version of Android: Android 4.3 Jelly Bean, Sony has quickly announced their device will be upgraded to this OS.
Accordingly, Sony validation, Xperia Z, Xperia ZL, ZR Xperia, Xperia Tablet Z, Z Xperia Xperia Ultra SP the phone models will be upgraded to Android 4.3. Unfortunately the company has not announced specific schedule. In addition, the Xperia ZR or Tablet users more likely to Z will also be upgraded to the Android version, these devices will receive Android 4.2 update next month.