diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40566d051..be3055b2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,16 @@
 emqttd ChangeLog
 ==================
 
+0.8.3-beta (2015-06-05)
+-------------------------
+
+Bugfix: issue #158 - should queue:in new message after old one dropped
+
+Bugfix: issue #155 - emqtt_parser.erl: parse_topics/3 should reverse topics
+
+Bugfix: issue #149 - Forget to merge plugins/emqttd_auth_mysql from 'dev' branch to 'master' in 0.8.x release
+
+
 0.8.2-alpha (2015-06-01)
 -------------------------
 
diff --git a/README.md b/README.md
index c09b3f05b..edfba9761 100644
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ The MIT License (MIT)
 [@turtleDeng](https://github.com/turtleDeng)
 [@Hades32](https://github.com/Hades32)
 [@huangdan](https://github.com/huangdan)
-
+[@callbay](https://github.com/callbay)
 
 
 ## Author
diff --git a/apps/emqtt/src/emqtt.app.src b/apps/emqtt/src/emqtt.app.src
index 6f545b0bc..c444276fa 100644
--- a/apps/emqtt/src/emqtt.app.src
+++ b/apps/emqtt/src/emqtt.app.src
@@ -1,7 +1,7 @@
 {application, emqtt,
  [
   {description, "Erlang MQTT Common Library"},
-  {vsn, "0.8.2"},
+  {vsn, "0.8.3"},
   {modules, []},
   {registered, []},
   {applications, [
diff --git a/apps/emqtt/src/emqtt_parser.erl b/apps/emqtt/src/emqtt_parser.erl
index d2a70993e..387f041d4 100644
--- a/apps/emqtt/src/emqtt_parser.erl
+++ b/apps/emqtt/src/emqtt_parser.erl
@@ -196,7 +196,7 @@ wrap(Header, Rest) ->
 %    parse_qos(Rest, [QoS | Acc]).
 
 parse_topics(_, <<>>, Topics) ->
-    Topics;
+    lists:reverse(Topics);
 parse_topics(?SUBSCRIBE = Sub, Bin, Topics) ->
     {Name, <<_:6, QoS:2, Rest/binary>>} = parse_utf(Bin),
     parse_topics(Sub, Rest, [{Name, QoS}| Topics]);
diff --git a/apps/emqttd/src/emqttd.app.src b/apps/emqttd/src/emqttd.app.src
index a6004f473..5c3347f27 100644
--- a/apps/emqttd/src/emqttd.app.src
+++ b/apps/emqttd/src/emqttd.app.src
@@ -1,7 +1,7 @@
 {application, emqttd,
  [
   {description, "Erlang MQTT Broker"},
-  {vsn, "0.8.2"},
+  {vsn, "0.8.3"},
   {modules, []},
   {registered, []},
   {applications, [kernel,
diff --git a/apps/emqttd/src/emqttd_queue.erl b/apps/emqttd/src/emqttd_queue.erl
index 34b34a58f..d9897a3f8 100644
--- a/apps/emqttd/src/emqttd_queue.erl
+++ b/apps/emqttd/src/emqttd_queue.erl
@@ -25,7 +25,7 @@
 %%% @end
 %%%-----------------------------------------------------------------------------
 
-%% TODO: this module should be removed...
+%% TODO: this module should be rewrited...
 
 -module(emqttd_queue).
 
@@ -69,12 +69,12 @@ in(ClientId, Message = #mqtt_message{qos = Qos},
         false -> % full
             if
                 Qos =:= ?QOS_0 ->
-                    lager:warning("Queue ~s drop qos0 message: ~p", [ClientId, Message]),
+                    lager:error("Queue ~s drop qos0 message: ~p", [ClientId, Message]),
                     Wrapper;
                 true ->
                     {{value, Msg}, Queue1} = queue:drop(Queue),
-                    lager:warning("Queue ~s drop message: ~p", [ClientId, Msg]),
-                    Wrapper#mqtt_queue_wrapper{queue = Queue1}
+                    lager:error("Queue ~s drop message: ~p", [ClientId, Msg]),
+                    Wrapper#mqtt_queue_wrapper{queue = queue:in(Message, Queue1)}
             end
     end.
 
diff --git a/apps/emqttd/src/emqttd_sm_sup.erl b/apps/emqttd/src/emqttd_sm_sup.erl
index ece44dd38..fc50956d1 100644
--- a/apps/emqttd/src/emqttd_sm_sup.erl
+++ b/apps/emqttd/src/emqttd_sm_sup.erl
@@ -20,7 +20,7 @@
 %%% SOFTWARE.
 %%%-----------------------------------------------------------------------------
 %%% @doc
-%%% emqttd client manager supervisor.
+%%% emqttd session manager supervisor.
 %%%
 %%% @end
 %%%-----------------------------------------------------------------------------
diff --git a/plugins/emqttd_auth_mysql/etc/plugin.config b/plugins/emqttd_auth_mysql/etc/plugin.config
index 367983f5f..1ab1a6e07 100644
--- a/plugins/emqttd_auth_mysql/etc/plugin.config
+++ b/plugins/emqttd_auth_mysql/etc/plugin.config
@@ -8,7 +8,7 @@
    {encoding,  utf8}
 ]},
 {emqttd_auth_mysql, [
-   {users_table, mqtt_users},
+   {user_table, mqtt_users},
    {password_hash, plain},
    {field_mapper, [
        {username, username},
diff --git a/rel/files/plugins.config b/rel/files/plugins.config
index c2fde4d51..ce65e0625 100644
--- a/rel/files/plugins.config
+++ b/rel/files/plugins.config
@@ -9,14 +9,13 @@
 %    {encoding, utf8}
 % ]},
 % {emqttd_auth_mysql, [
-%     {users_table, mqtt_users},
+%     {user_table, mqtt_users},
 %     {password_hash, plain},
 %     {field_mapper, [
 %         {username, username},
 %         {password, password}
 %     ]}
-% ]}
-%
+% ]},
 % {emqttd_dashboard, [
 %    {listener, 
 %        {http, 18083, [
diff --git a/rel/reltool.config b/rel/reltool.config
index 1ea929f55..f26654f74 100644
--- a/rel/reltool.config
+++ b/rel/reltool.config
@@ -4,7 +4,7 @@
        {lib_dirs, ["../apps", "../deps", "../plugins"]},
        {erts, [{mod_cond, derived}, {app_file, strip}]},
        {app_file, strip},
-       {rel, "emqttd", "0.8.2",
+       {rel, "emqttd", "0.8.3",
         [
          kernel,
          stdlib,