Errata patches for libutil have been released for OpenBSD 6.6. Various third party applications may crash due to symbol collision.
Binary updates for the amd64, i386, and arm64 platforms are available via the syspatch utility. Source code patches can be found on the respective errata page: https://www.openbsd.org/errata66.html After patching, run makewhatis and restart the snmpd/ldapd services if they are enabled.
