Big news often takes consumers as surprise and as Xperia T2 Ultra launches in India, it’s time for Xperia Z1, Z1 Compact and Z Ultra are right now seeding 4.4 Kitkat firmware but the process might take some time to arrive in your country, although it’s a global roll out.Android 4.4 Kitkat

That's not all as Android 4.4 Kitkat is already in development for XPeria Z, Xperia ZL, Xperia ZR and Xperia Tablet Z but the update might be available in month of May or June this year.

Official Sony XPeria Android 4.4.2 Update eligible phones –

  • Xperia Z Ultra
  • Xperia Z1
  • Xperia Z1 Compact

Official Sony Kitkat Changelog -

  • Google’s Android 4.4; KitKat as standard – bringing performance & UI improvisation - We’ve added our tweaked Status Bar and Quick Setting... now more intuitive and customizable (and pretty easy on the eye)… cleaned up to ensure you only get the notifications you really need.
  • If you’ve got a Sony PlayStation 4, you might recognize our new user interface – we’ve added the same sleek launch animation and live wallpaper across the lock and home screens
  • We’re also uplifting Sony’s entire native app portfolio to the latest versions – bringing tweaked / improved / current experiences for (to name but a few): Messaging, MyXperia, Smart Connect, Small apps, TrackID, TrackID TV, Sony Select, Smart Social Camera and…
  • Sony’s Media apps: WALKMAN, Album and Movies, with Sony Entertainment Network cloud service integration – a more converged and full Sony entertainment experience – Sony Entertainment Network & Play Memories integration with a more intuitive UI, better download speeds, and more!
  • Our unique custom interface experience: “Xperia Themes”, with downloadable UI packs from Sony Select – skin up to 280 assets across your Xperia smartphone with a variety of styles, and more to follow soon…