Unless I missed it, are there any release notes for the last OS Update - 1.2.0?
1.2.0 is just the official "release version" after 1.1.5.9.7 beta and 1.1.5.9.9 beta changes a few months earlier.
Main OS 1.1.5.9.9
Bug Fix: Layered gated sequencers offset issue when in key step mode
Main OS 1.1.5.9.7
Bug Fix: Layered gated sequencers not advancing through steps properly
Bug Fix: If just Layer A or B is active, the gated sequencer plays all 16 steps in key step mode (arp on/16th), but in stack mode just 8 steps of the sequence are played
Bug Fix: On the Module, arp relatch does not always work
Bug Fix: FX doesn't update when changing programs quickly
Bug Fix: Change master / slave terminology
Bug Fix: Arp/seq on, sequencer only sends note ons
Bug Fix: NRPNs still received when Param Rcv global set to OFF or CC