KamLAND-Zen is searching for neutrinoless double-beta (0νββ) decay in Xe-136 using a xenon-loaded liquid scintillator. The KamLAND-Zen detector was recently upgraded with almost double the amount of xenon and an ultra-low radioactivity container. With almost 1-ton-year of Xe-136 exposure, we are exploring the double-beta decay parameter space corresponding to the inverted hierarchy for the first time. We have not yet observed NDBD, but these results make use of novel algorithms to perform beta-gamma separation using ML and tag spallation products on day-long time scales. We obtain a lower limit for the 0νββ decay half-life of 2.3×10^26 yr at 90% C.L., corresponding to upper limits on the effective Majorana neutrino mass of 36-156 meV using commonly adopted nuclear matrix element calculations.