See release notes at SMPP Router - 1a9d472.
smpproutercli status
Addition of significant monitoring improvements via Prometheus metrics and ability to obtain status of target SMPP binds via API or smpproutercli. Audit log can also be enabled/disabled using smpproutercli.
smpproutercli status
Audit log control
Enabling/disabling audit log that now also logs MO:
smpproutercli control log.audit=true