anchor.diff:               upgrade_config_from_2_2_0_to_2_3_0(Config)];
           {value, {2,3,0}} ->
               [{set, {node, node(), config_version}, {3,0}} |
  -             upgrade_config_from_2_3_0_to_3_0(Config)]
  +             upgrade_config_from_2_3_0_to_3_0(Config)];
  +        {value, {3,0}} ->
  +            [{set, {node, node(), config_version}, {3,0,1}} |
  +             upgrade_config_from_3_0_to_3_0_1(Config)]
       end.
   
   upgrade_config_from_1_7_to_1_7_1() ->
  
positive.code:           end, McdConfig),
  
      [{set, McdKey, NewOrUpdatedParams ++ StrippedMcdConfig}].
  
  search_sub_key(Config, Key, Subkey) ->
      case ns_config:search(Config, Key) of
  
negative.code: -define(NS_LOG, "ns_log").
  
  get_current_version() ->
      {3,0,1}.
  
  % Allow all keys to be mergable.
  
  