Android 5.0.2 Lollipop has been certified for the Xperia Z3 (D6616) for T-Mobile US in the form of build number 23.1.C.0.381. This compares with the current firmware build of 23.0.D.1.123 – the move from 23.0 to a 23.1 build number suggests this will be the Lollipop update.
Only recently there were suggestions that the Android Lollipop update could take months, however there is every chance that this isn’t the final Lollipop build for rollout. In the past, we have seen numerous certifications before an update is released for certain models. Either way, we’ll take this news over no activity at all. We’ll bring you further news as we have it.