While the Nexus elite have since moved on to KitKat, there are still a lot of devices just getting by with some flavor of Jelly Bean. At least Sony is keeping its promise of updating devices to the latest version of that sweet-themed platform. Android 4.3 is beginning to make its way to the Xperia Z, Xperia ZL, Xperia ZR, And Xperia Tablet Z.

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This update will include all the platform enhancements from Google, but also some new Sony features. Here's the full changelog:

  • Google’s Android 4.3; Jelly Bean as standard – bringing Project Butter performance & UI optimisation and a smoother graphical experience
  • Launched with Xperia Z1, we’re now bringing Sony’s Smart Social Camera to these devices – our signature camera experience, that lets you download, access and enjoy “Xperia camera apps” directly from within the viewfinder
  • 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, Sony Select 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 & PlayMemories integration with a more intuitive UI, offering seamless access to both local and cloud content
  • The launch of our unique custom interface experience: “Xperia Themes”, with downloadable UI packs from Sony Select – more on this soon…
  • The latest Android security enhancements, matched with Sony’s mobile enterprise solution: Xperia in Business
  • Battery STAMINA Mode – updated version of Sony’s power management app, now with refreshed interface and more smart options for prolonging battery life
  • Increased user control for Xperia Tablet Z, with “Restricted Profiles”; option to create isolated, secure spaces with individual local storage, home screens, widgets and settings

Just because this update is being deployed by Sony, that doesn't mean all versions of these devices will get it right away. The unlocked international variants are probably going to see the OTA soon, but carriers will need to give their stamp of approval for any locked devices.

[Sony]