--- /dev/null
+= MARC Stream Importer =
+
+New command line options were added to marc_stream_importer.pl for
+passing additional Vandelay import flags. Prior to this change, only
+auto-overlay-exact was supported.
+
+New options.
+
+ * --auto-overlay-exact
+ ** Overlay/merge on exact 901c matches
+ * --auto-overlay-1match
+ ** Overlay/merge when exactly one match is found
+ * --auto-overlay-best-match
+ ** Overlay/merge on best match
+ * --import-no-match
+ ** Import when no match is found
+
+Like Vandelay, these options can be combined.