QTS 5.0 release date is today QTS 5.0.0.1808 Build 20211001 Applicable Models TS-X75, TS-531P, TS-X73A, TS-X90U, TS-X53S, TS-XA51, TS-XA82, TS-X89U, TS-X88, TS-X85U, TS-X85, TS-X82S, TS-X82, TS-X77, TVS-X71, TS-X53B, TS-X51A, TS-131P_231P_431P_X31+_X31K, TS-X35, TS-X31X