Possible compatibility problems with earlier versions marked with '*'.
+Documentation updates for COMSTACK.
+
+* ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
+Changed prototype Z3950_records. For some functions int parameters
+were changed to size_t.
+
+TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
+on some Unices.
+
New MARC decode/display function, marc_display_exl, which better rejects
bad ISO2709 records. YAZ client uses it.