  We present the recent developments in the context of the OpenIPMC project,
which proposes a free and open-source Intelligent Platform Management
Controller (IPMC) software and an associated controller mezzanine card for use
in ATCA electronic boards. We discuss our experience in the operation of
OpenIPMC on prototype boards designed for the upgrades of particle physics
experiments at CERN and we show the addition of new features and support for
new protocols in the firmware of the controller mezzanine card.
