[patoh]

OpenLDAP-LTB provides up-to-date openldap packages for CentOS - http://ltb-project.org/documentation/openldap-rpm

openldap upstream suggest using these on CentOS / RHEL over the redhat packages, if operating the server components.

[vetinari]

Redhat ships with 389 directory server for several years already (former Netscape Directory) and when you install FreeIPA, you will get 389 by default. I don't think FreeIPA even works with OpenLDAP.