Sony has released firmware updates for its Xperia Z2 and Xperia Z3 smartphones which address several relatively minor problems and requests. Both handsets will remain on Android 5.0 Lollipop, with the headlining feature being a close all button in the app switcher.
The update also brings some other minor improvements, including a change which makes the LED light independent of the sound settings. Previously, putting the device on silent also turned off the LED indicator. This was probably annoying, since the light is the exact thing you would want in place of audio. The update will now allow devices that have security policies enforced by services like Microsoft Exchange to see notification content on the lock screen, which was blocked for security in the prior version.
The lock screen also gets a bug fix, eliminating an issue where it would incorrectly state the phone had no service for a moment. Sony also made some backend changes to fix some difficulties users had in moving files between the internal and external SD cards. Ultra stamina mode was causing some issues for messaging in the previous version but that was taken care of as well.
The update will roll out for both handsets starting today, but Sony warns users that the availability may vary based on location and carrier choice.
source - Sony