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.