As the Japanese tech titan has already started seeding Android 4.3 Jelly Bean software for Xperia Z1 and Xperia Z Ultra, it now appears that the upgrade service is expected soon for the company's flagship smartphone of the year, Xperia Z, as new details of the roll-out schedule have emerged.

Android 4.3
Android 4.3 for Xperia Z is expected on 19 December.

Sony accidentally updated the Xperia Z support page, which reveals the update roll-out date for the handset. The Android 4.3 firmware with build version 10.4.B.0.569 will be reportedly released for Xperia Z on 19 December (which is a few hours away). It seems Sony has changed the support page back to the previous details, reports Xperia Blog.

Although there is no official word yet, the latest Jelly Bean update for Xperia Z is expected soon.

Android 4.3 update
Sony Xperia Z support page.

Following Google's announcement of its latest iteration of Android software, Sony blogged (earlier in November) the Android 4.3 treatment will start for Xperia Z, Xperia ZL, Xperia ZR, Xperia Z Tablet, Xperia SP, Xperia Z Ultra and Xperia Z1 this month.

After this the company will make Android 4.4 KitKat available for Xperia Z, Xperia ZL, Xperia Tablet Z, Xperia Z Ultra and Xperia Z1.

Sony has just confirmed the roll-out of Android 4.3 for Xperia Z Ultra and Xperia Z1. Along with this the manufacturer promised that the update for the remaining Xperia devices will commence soon.

The Android 4.3 update for Xperia Z1 and Xperia Z Ultra with build number 14.2.A.0.290 is now available for users in the United Kingdom, India, Finland, Singapore, Sweden and Thailand via PC Companion as well as Sony Update Service (SUS). The new stock firmware brings several notable features and enhancements over performance for the aforementioned Xperia devices. This includes the project butter performance and UI optmisation, bootloader camera bug fixed for Xperia Z1, Sony Smart Camera app for Xperia Z Ultra and one-hand keyboard settings.

Click here to know more about the new features in Android 4.3 update for Xperia Z1 and Xperia Z Ultra.