Wow. Sony Mobile has just released a new firmware with the which includes the new March 2017 security patches for Xperia XZ, Xperia X Performance, Xperia X Compact and Xperia X. New firmware with the build number 39.2.A.0.442 now available for Xperia XZ and Xperia X Performance while the 34.2.A.0.333 now available for Xperia X Compact and Xperia X. No change log has been released for now. Update is available for almost all the international variant of these devices except Xperia XZ F8331 at the time being. In the meantime if you have installed the update let us know your impressions.