Hi Micheal,

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The only problem I see with CND which is so granular is that it is
currently jackrabbit specific (I think? I could be wrong, am a bit out
of date).

- also a side issue is how to handle migrations if a new
field of data is needed.

-->

the java artifact cnd is conform according to the java specification request 283 (take a look at the page 408 appendix B) and there is still enhancement to take and let me know if you have some proposals.