Sony Mobile has begun to roll a new firmware update for the Xperia Z5 family with build number 32.2.A.0.224 (from version 32.1.A.1.185). At the time of writing, the update is available to the Xperia Z5 (E6603) and Xperia Z5 Compact (E5803, E5823), but we expect the Xperia Z5 Premium to go live shortly too.
It is too early know what Sony has updated in this release, so if you have updated, please share your thoughts and screenshots below. Also, any confirmation on whether STAMINA mode has made a return would be helpful too. We will include FTF firmware links below in due course.