I tried and tested the binary of FC3 in my environment and found there was no any problem right now. I am going to put it on production after some more tests. I am not developer and not familar with openldap, mysql etc. But if there is a newer version or bugfix version after this beta version. How I can upgrade it? I found there's only uninstall step of the binary one. If you are going to port another binary version, then I think I may not know how to handle the data migration from one version to another version.