Good news for the owners of Xperia Z2 and Xperia Z3 series. A new update will be heading their way pretty soon. The new update carrying build number 23.1.A.1.28 was spotted on PTCRB. The latest one is currentlty is 23.1.A.0.740 for careers and 23.1.A.0.726 for global versions. The new update seems like a major bug fix or an update to Android 5.1 Lollipop considering the number change is quite substantial. Whatever the case is, things are unclear at the moment. Considering how the update is certified, it’ll be rolling out in coming days.