Is there a way of telling which attributes/classes/parameters are considered internal and undocumented? Or which would be considered unstable across upgrades (major or minor)?
Simply being omitted from the appropriate section of the reference manual can't be enough, since attributes like nsRoleFilter aren't documented in the 5.2 version of the reference manual (despite being referred to but not strictly defined in other manuals).
There is no way from the Directory Server itself.
Directory Server 6.0 comes with man pages that contains a stability level for the interfaces.
Undocumented means they don't appear in the documentation. Sometime there are documentation errors and some attributes are missing in the documentation. Reporting such errors allows our technical writers to fix them. But there are truely too many configuration attributes and it is hard not to miss any.
Regards,
Ludovic.