anchor.diff:               upgrade_config_from_1_8_1_to_2_0(Config)];
           {value, {2,0}} ->
               [{set, {node, node(), config_version}, {2,2,0}} |
  -             upgrade_config_from_2_0_to_2_2_0(Config)]
  +             upgrade_config_from_2_0_to_2_2_0(Config)];
  +        {value, {2,2,0}} ->
  +            [{set, {node, node(), config_version}, {3,0,0}} |
  +             upgrade_config_from_2_2_0_to_3_0(Config)]
       end.
   
   upgrade_config_from_1_7_to_1_7_1() ->
  
positive.code:        {mccouch_port, misc:get_env_default(mccouch_port, 11213)},
         {dedicated_port, misc:get_env_default(memcached_dedicated_port, 11209)},
         {admin_user, "_admin"},
         {admin_pass, "_admin"},
         {bucket_engine, path_config:component_path(lib, "memcached/bucket_engine.so")},
         {engines,
          [{membase,
  
negative.code: -define(NS_LOG, "ns_log").
  
  get_current_version() ->
      {3,0,0}.
  
  % Allow all keys to be mergable.
  
  