As per AndroidSaS, the Japanese giant is working on its update platform based on Android's latest mobile and tablet iteration, which was announced a few months back. The site reveals that the company plans to roll out the update for the flagship in the first week of November, and further claims that November 7 might be the Android 4.4 update rollout date for Xperia Z1.
Moreover, the site expects that after rolling out Android 4.4 KitKat update for Xperia Z1, the company might roll out the latest Android update for a few other Xperia devices like, Xperia Z Ultra and Xperia Z.
The update is also expected to come bundled with major fixes including bugs, security vulnerabilities, and improvements to the X-Reality Engine. For now, there is no official word from Sony on the latest Android 4.4 KitKat update for any Xperia device.
Sony took the wraps off its flagship smartphone, the Xperia Z1 at the IFA in Berlin. The device natively runs Android 4.2.2 out of the box and it seems the device might give a miss to Android 4.3 Jelly Bean and directly be updated to Android 4.4 KitKat.
Recently, alleged leaked screenshots of Google's upcoming Android 4.4 KitKat were spotted online, revealing several new features and changes to Google's current Android 4.3 Jelly Bean iteration.
Earlier rumours have pointed to an October release date for the Android 4.4 KitKat update, as Nestle had revealed the first news about the launch of Android 4.4 KitKat on Facebook.