Possible compatibility problems with earlier versions marked with '*'.
---- (IN PROGRESS)
+--- 2.0.4 2003/09/04
+
+Allow any CQL relation (not just all,any,exact,scr).
+
+Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
+that features the same UI.
+
+Implemented command update0 in YAZ client which is equivalent to
+update but uses old of Ext Update ASN.1.
+
+Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
+in charset negotiation. Added VAL_ID_CHARSET in oid.h.
+Previously no OID was used for this info.
+
+ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
+It apparantely upsets EBSCO Publishing IR Z39.50 Server which
+returns 'malformed search term' otherwise.
SortResponse member resultCount now set to NULL in sort handler of
frontend server.