Sony Mobile’s Concept for Android team has pushed a new update for the Xperia X (38.3.1.A.0.96). This is a small firmware update, with the Android security patches updated to 1 April 2017. The update is rolling to the Experimental track of the Xperia X Concept. If you own the handset and are eager to try it for yourself then head over here.
Thanks Hein, Josef and najodleglejszy!