Olivier Guillard writes:
How to survive in operational environnement without comments in files ( nor a way to track change logs btw ) ?
I suppose you could put slapd.d/ under version control. After making a change or a set of changes, commit your modified slapd.d/ with your comments in the commit message. Or put comments in other files under slapd.d/. If these filenames do not resemble DNs, e.g. have filetype .txt and no '=' in them, they won't clash with cn=config's filenames. I haven't tried how cumbersome this is/isn't in practice though.