Sony Mobile has released a new version of the Concept for Android Marshmallow for Xperia Z3 and Z3 Compact devices. The latest firmware moves the build number to MMB29X.Z1.3582 and re-introduces the FM Radio. The FM Radio first made an appearance in Concept software on 14 April, before being removed six days later due to a conflict with the Bluetooth stack.
Other changes in this new build is a new landscape battery indicator and a new version of the Xperia Home launcher (10.0.A.0.32) which mainly includes bug fixes over the previous version. Smaller changes include the 2 April 2016 Google security patches and an update to InTouch (v1.3.0). The update should be rolling to all in the Concept program over the next few days.