The ipmiutil-3.1.1 release has been posted on sourceforge now.
See http://ipmiutil.sourceforge.net for binaries, source, etc.
ChangeLog:
05/15/2018 ARCress ipmiutil-3.1.1 changes (iver 3.11)
scripts/ipmi.init.basic - add acpi_ipmi module handling
util/ifru.c - if C5, get reservation again on retry (SFBug#33)