Sony has confirmed that and update to Android 4.4 KitKat is now rolling out for Xperia Z smartphones. See also: 18 best smartphones: The best phone you can buy in 2014
To be specific, owners of the Xperia Z Ultra, Xperia Z1 and Xperia Z1 Compact can start checking for the latest version of Android. The roll out has started but as ever, will be gradual and dependant on market and network.
Sony said: "The next Sony software rollout for Xperia Z Ultra, Xperia Z1 and Xperia Z1 Compact starts right about now. We've been working to build new Sony experiences on Google's KitKat release to create some neat / sweet features (if we say so ourselves)"
The KitKat update brings Xperia smartphone users performance and users interface optimisation but Sony has added some new features of its own. New status bar and quick settings are 'more intuitive and customisable' having been cleaned up so you only get the notifications you really need.
Sony has tied its Android interface up with the PS4's too, with the same sleek launch animation and live wallpaper across the lock- and homescreens. Sony's app portfolio, including Messaging, MyXperia, Smart Connect, Small apps, TrackID, TrackID TV, Sony Select and Smart Social Camera, will also get a new versions. See also: How to manually update an Android smartphone or tablet.
The KitKat upgrade also come with Xperia Themes which consists of 280 downloadable skins for a more personal look to the software user interface. Xperia Themes change the look of the navigation bar, icons, folders and more. Check out the video below for a closer look.
If you don't own one of the Xperia Z smartphone which is included in the update then fear not. Sony has that the Xperia Z, Xperia ZL and Xperia Tablet Z are next up for the Android 4.4. KitKat firmware starting 'mid-Q2' or sometime in May.
Furthermore, Sony has confirmed that the Xperia T2 Ultra, Xperia E1 and Xperia M2 will be given the KitKat treatment with more details on timing to be announced soon.