+--- 1.6.20 2012/09/21
+
+Rank algorithm details may be printed as part of show reseponse in
+element <relevance_info>.. This is only printed if <rank debug="yes"/>
+is used in service.
+
+Record as returned by show/record command have a minimal indentation
+which makes things human-readable.
+
+New configuration of default sorting criteria (sort-default) in
+service definition. If no criteria is defined it will be as before
+'relevance'.
+
+Search command now supports sort parameter just as the show command.
+If no parameter is give, it will use the service sort-default value.
+
--- 1.6.19 2012/09/18
Rank algorithm skips strings that gets normalized to empty string.