Your OpenLDAP configuration will be compatible between 2.4.23 and 2.4.33. But LTB project install OpenLDAP in /usr/local, not in the default location, so you need to move your configuration in the new location.
Why would they have to move the location of the configuration? The point of the -F flag to slapd is that you can use a location of your choosing any time you want to...
--Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration