anchor.diff:            backend_config(CsVsn, Backend)
         }
       ].
  +
  +riak_core_config(current) ->
  +    {riak_core, []};
  +riak_core_config(previous) ->
  +    {riak_core,
  +     [{default_bucket_props, [{allow_mult, true}]},
  +      {ring_creation_size, 8}]
  +    }.
   
   backend_config(_CsVsn, memory) ->
       [{storage_backend, riak_kv_memory_backend}];
  
positive.code: blocks_backend_config(_) ->
      {be_blocks, riak_kv_bitcask_backend, [{data_root, "./data/bitcask"}]}.
  
  riak_ee_config(CsVsn, Backend) ->
      [repl_config() | riak_oss_config(CsVsn, Backend)].
  
  repl_config() ->
      {riak_repl,
  
negative.code: 
  previous_riak_config() ->
      riak_config(
        previous,
        ?CS_PREVIOUS,
        rt_config:get(build_type, oss),
        rt_config:get(backend, {multi_backend, bitcask})).
  