If you know how to build OpenLDAP manually, and would like to participate in testing the next set of code for the 2.4.30 release, please do so.
Fedora 17 and 18 builds can be found in my testing repo: http://repos.fedorapeople.org/repos/jvcelak/openldap/(Not sure if I manage to get 2.4.30 into F17 because we are already after Alpha release.)