There is no hint in the documentation (or at least I did not find any) for this. Is it planned not to support the *.properties variant any longer? I found it much easier to maintain.
Another topic: I asked Kirill Kovalenko (Product Manager Softerra LLC) whether it is possible to add server detection for ApacheDS to their LDAP Browser/Adminstrator product. For those of you who don't know this program: It displays the LDAP server product / vendor in the properties dialog. Not a very important feature, but from my point of view it looks more professional if the client displays a correct information instead of "Vendor is unknown or impossible to detect" (0.9.1 and LDAP Administrator 3.2). Kirill told me that they will at support ADS in the version; which is quite easy because the vendorName attribute is provided in the Root DSE. You might add the vendorVersion attribute to allow an even more detailed message.