Possible compatibility problems with earlier versions marked with '*'.
+--- 1.8.4 2001/XX/XX
+
+ZOOM: new option "resultSetName".
+
+--- 1.8.3 2001/11/19
+
+YAZ client enables named result sets only if target supports it.
+
*** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
* ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get