Sony Mobile announces ten Xperia smartphones getting official Android 4.3 Jelly Bean firmware by December 2013 onwards. Included to selected devices are Xperia Z series, Xperia SP, Xperia Tablet Z, Xperia T, Xperia TX and Xperia V.

Official List from Sony Mobile

Sony finally revealed the selected Xperia devices getting official Android 4.3 Jelly Bean OS during the holidays. Sony Xperia Z series are the primary recipients of Android 4.3 and it includes Xperia Z1, Xperia Z, Xperia Z Ultra, Xperia ZR/ZL, Xperia Tablet Z and hybrid Xperia SP.

Aside from that, Sony also tipped out other Android 4.1 running Xperia smartphones jumping on Android 4.3 and it includes Xperia T, Xperia TX and Xperia V. However, some recently released lower-end smartphones from Sony like Xperia L, Xperia M and Xperia C weren't included to the official listing to receive Android 4.3 Jelly Bean for 2013.

Xperia L, M and C are all capable to handle the official Android upgrade which somehow puts Sony in stale for now due to several firmware push for announced devices. Sony may push Android 4.3 for the three low-grade Xperia smartphones on the second batch probably next year 2014.

Android 4.4 KitKat from Sony

Sony recently confirmed Android 4.4 KitKat upgrade plans for the Xperia Z series which may be released by early or mid 2014.

"On that, please stay tuned to the social newsroom and @SonyMobileNews, where we'll update you with specific info on product upgrade timings and software features as things progress," Sony's response to Android 4.4 KitKat posted on their blog site.

Google made Android 4.4 KitKat features official lately which revealed tons of changes on the Nexus 5 and soon for other Nexus devices. Some of these changes include:

1. Smoother and more stable user interface

2. Updated home screen, lock screen and icons

3. Redesign of downloads and email apps

4. Integration of Google Drive, Keep and QuickOffice as native apps

5. More accurate touch response on capable hardware

6. Better multi-tasking performance

7. New battery saving modes added such as location mode and low-power audio playback

8. Immersive mode for reading and video playback

9. Android device manage for tracking your Xperia smartphone

10. Various system enhancements, security patches and bug fixes