Hi, I've plugged a modified directory into DCS 1.2. It can't list records and can in principle only authenticate users. Now I'm trying to port my changes to DCS 2.2. But I find that in 2.2 twistedcaldav.directory.directory.DirectoryService.allRecords() is called. ... which is a no go, for my "directory". Looking at directory/aggregate.py I see that recordWithGUID() has been removed, so the default implementation in class DirectoryService is called. I cannot figure out from the log messages whether this was on purpose. Anyway, when there's code still calling recordWithGUID and AggregateDirectoryService doesn't implement it, it falls back to the default implementation using allRecords(), which will prevent you from plugging in a directory which cannot implement allRecords() /Peter