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+# Groupchat 1.0 usage statistics gathering
+
+Groupchat 1.0 was probably the protocol that predated
+[XEP-0045: Multi-User Chat] and there is still some compatibility that
+lives on, in the XEP and in implementations.
+
+This module tries to detect clients still using the GC 1.0 protocol and
+what software they run, to determine if support can be removed. 
+
+Since joins in the GC 1.0 protocol are highly ambiguous, some hits
+reported will be because of desynchronized MUC clients
+
+# Compatibility
+
+Should work with Prosody 0.10.x and earlier.
+
+It will not work with current trunk, since the MUC code has had major
+changes.