Sony just updated their software again

[Reggie]

Seems quicker.
Xperia Z5 Premium: New software is available

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There is a software update (v. 32.2.A.0.224) available for your device. Update your device’ s software and enjoy new features, better performance, speed and bug fixes. You can update the software today using your computer or wait until it’ s available directly in your device (often within a couple of days). It's easy and no backup is needed.

This software includes:

All of the latest bug fixes and performance updates
Improved battery life
Improved camera functionality and stability
Improved sound handling
Improved handling of Bluetooth connected devices