Sony has announced that it has started rolling-out Android 4.3 Jelly Bean update for Xperia Z1 and Xperia Z Ultra smartphones. The update is now available over-the-air and via PC Companion/ Bridge for Mac applications.

According to Sony, it has made quite a few tweaks to improve the functionality of Android 4.3 on its Xperia smartphones.

Full change-log

• Android 4.3 base
• New Smart Social Camera app for Xperia Z Ultra users (already available on Xperia Z1)
• Tweaked and improved versions of Messaging, MyXperia, Smart Connect, Small apps, TrackID, Sony Select and more
• Sony Entertainment Network cloud service integration on Walkman, Album and Movies apps
• Addition of Xperia Themes with downloadable UI packs from Sony Select
• Latest Android security enhancements and Xperia in Business

Sony has also noted that it will soon be revealing details about the Android 4.3 roll-out for other Xperia devices.

It is important to note here that Xperia software updates are released region/ carrier-wise, so not everyone will get the update right-away. If you have already got the Android 4.3 update on your Xperia Z1 or Z Ultra, do let us know about the experience in comments.