Sony Mobile has released the first update for the Xperia X Concept for Android Nougat firmware. Sony is aiming to release weekly updates for those that have opted in to its experimental track. For those that prefer more stable releases, Sony is aiming to release these monthly.
The first release is in the form of build number 38.1.A.0.342 (NBD91K4) and adds a number of improvements including 1 November Google security patches, the addition of X-Reality support in the Album app, a new version of Xperia Home (10.2.A.1.15) and Xperia Transfer (2.2.A.4.12). Sony has also fixed a number of bugs including a new fingerprint driver and fix for the camera and FM Radio.
It is worth noting that the new Xperia Home has some problems with icon packs. If you already use icon packs, then this must be removed through the Home settings before you update your phone.