Sony has also recently rolled out Android 4.4.2 update for the Xperia M2 and Xperia M2 Dual. According to the twitter page of the company, the new Android 4.4.4 (KitKat) update brings fixes, battery, wifi & email improvements and more.
What is new in Android 4.4.4 KitKat update of Sony Xperia Xperia Z, ZL, ZR and Tablet Z :
- Device will be upgraded to Android 4.4.4 KitKat OS
- Battery performance will be improved
- Email stability & performance enhanced
- MMS, Calendar, Wifi, Contacts, emails & More enhanced
- Various bugs and error fixed
If you have not received the notifications about update till now, then you can also check manually by Settings > About Phone > Software update.