You should seriously consider updating. 2.4.20 was released almost 2,5 years http://download.opensuse.org/repositories/network:/ldap:/OpenLDAP:/RE24/
Hi Michael, thanks for pointing me to that openldap repository.
i have upgraded two test VMs to slapd 2.4.30. unfortunately both problems: 1. no entryUUID is added to an accesslog database and 2. cn=config objects get replicated only after being modified still remain.
regards, Marvin