I was looking at the shared folder(addressbook, calendar and notebook) feature of the ZCS. I am using 4.5.6 version. It seems to me that the ACL is stored in database along with folder. Is storing the ACL in LDAP a better and more secure approach rather then storing in database. I don't know if this will have an impact on performance. But storing ACL in LDAP seems a better choice.

Is there any future plans of storing ACL in LDAP rather then in database.
Please update me if my understanding is incorrect.