diff --git a/scripts/update_appup.escript b/scripts/update_appup.escript
old mode 100644
new mode 100755
diff --git a/src/emqx.appup.src b/src/emqx.appup.src
index 98fa9ece2..bc225729f 100644
--- a/src/emqx.appup.src
+++ b/src/emqx.appup.src
@@ -1,76 +1,65 @@
 %% -*- mode: erlang -*-
 {VSN,
- [
-   {"4.3.2", [
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {"4.3.1", [
-     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_frame, brutal_purge, soft_purge, []},
-     {load_module, emqx_cm, brutal_purge, soft_purge, []},
-     {load_module, emqx_congestion, brutal_purge, soft_purge, []},
-     {load_module, emqx_node_dump, brutal_purge, soft_purge, []},
-     {load_module, emqx_channel, brutal_purge, soft_purge, []},
-     {load_module, emqx_app, brutal_purge, soft_purge, []},
-     {load_module, emqx_plugins, brutal_purge, soft_purge, []},
-     {load_module, emqx_logger_textfmt, brutal_purge, soft_purge, []},
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {"4.3.0", [
-     {load_module, emqx_logger_jsonfmt, brutal_purge, soft_purge, []},
-     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_congestion, brutal_purge, soft_purge, []},
-     {load_module, emqx_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_frame, brutal_purge, soft_purge, []},
-     {load_module, emqx_trie, brutal_purge, soft_purge, []},
-     {load_module, emqx_cm, brutal_purge, soft_purge, []},
-     {load_module, emqx_node_dump, brutal_purge, soft_purge, []},
-     {load_module, emqx_channel, brutal_purge, soft_purge, []},
-     {load_module, emqx_app, brutal_purge, soft_purge, []},
-     {load_module, emqx_plugins, brutal_purge, soft_purge, []},
-     {load_module, emqx_logger_textfmt, brutal_purge, soft_purge, []},
-     {load_module, emqx_metrics, brutal_purge, soft_purge, []},
-     {apply, {emqx_metrics, upgrade_retained_delayed_counter_type, []}},
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {<<".*">>, []}
- ],
- [
-   {"4.3.2", [
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {"4.3.1", [
-     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_frame, brutal_purge, soft_purge, []},
-     {load_module, emqx_cm, brutal_purge, soft_purge, []},
-     {load_module, emqx_congestion, brutal_purge, soft_purge, []},
-     {load_module, emqx_node_dump, brutal_purge, soft_purge, []},
-     {load_module, emqx_channel, brutal_purge, soft_purge, []},
-     {load_module, emqx_app, brutal_purge, soft_purge, []},
-     {load_module, emqx_plugins, brutal_purge, soft_purge, []},
-     {load_module, emqx_logger_textfmt, brutal_purge, soft_purge, []},
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {"4.3.0", [
-     {load_module, emqx_logger_jsonfmt, brutal_purge, soft_purge, []},
-     {load_module, emqx_ws_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_connection, brutal_purge, soft_purge, []},
-     {load_module, emqx_congestion, brutal_purge, soft_purge, []},
-     {load_module, emqx_frame, brutal_purge, soft_purge, []},
-     {load_module, emqx_trie, brutal_purge, soft_purge, []},
-     {load_module, emqx_cm, brutal_purge, soft_purge, []},
-     {load_module, emqx_node_dump, brutal_purge, soft_purge, []},
-     {load_module, emqx_channel, brutal_purge, soft_purge, []},
-     {load_module, emqx_app, brutal_purge, soft_purge, []},
-     {load_module, emqx_plugins, brutal_purge, soft_purge, []},
-     {load_module, emqx_logger_textfmt, brutal_purge, soft_purge, []},
-     %% Just load the module. We don't need to change the 'messages.retained'
-     %% and 'messages.retained' counter type.
-     {load_module, emqx_metrics, brutal_purge, soft_purge, []},
-     {load_module, emqx_http_lib, brutal_purge, soft_purge, []}
-   ]},
-   {<<".*">>, []}
- ]
-}.
+  [{"4.3.2",
+    [{load_module,emqx_http_lib,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]}]},
+   {"4.3.1",
+    [{load_module,emqx_ws_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_cm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_congestion,brutal_purge,soft_purge,[]},
+     {load_module,emqx_node_dump,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_http_lib,brutal_purge,soft_purge,[]}]},
+   {"4.3.0",
+    [{load_module,emqx_logger_jsonfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_ws_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_congestion,brutal_purge,soft_purge,[]},
+     {load_module,emqx_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_trie,brutal_purge,soft_purge,[]},
+     {load_module,emqx_cm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_node_dump,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_metrics,brutal_purge,soft_purge,[]},
+     {apply,{emqx_metrics,upgrade_retained_delayed_counter_type,[]}},
+     {load_module,emqx_http_lib,brutal_purge,soft_purge,[]}]},
+   {<<".*">>,[]}],
+  [{"4.3.2",
+    [{load_module,emqx_http_lib,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]}]},
+   {"4.3.1",
+    [{load_module,emqx_ws_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_cm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_congestion,brutal_purge,soft_purge,[]},
+     {load_module,emqx_node_dump,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_http_lib,brutal_purge,soft_purge,[]}]},
+   {"4.3.0",
+    [{load_module,emqx_logger_jsonfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_ws_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_connection,brutal_purge,soft_purge,[]},
+     {load_module,emqx_congestion,brutal_purge,soft_purge,[]},
+     {load_module,emqx_frame,brutal_purge,soft_purge,[]},
+     {load_module,emqx_trie,brutal_purge,soft_purge,[]},
+     {load_module,emqx_cm,brutal_purge,soft_purge,[]},
+     {load_module,emqx_node_dump,brutal_purge,soft_purge,[]},
+     {load_module,emqx_channel,brutal_purge,soft_purge,[]},
+     {load_module,emqx_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_plugins,brutal_purge,soft_purge,[]},
+     {load_module,emqx_logger_textfmt,brutal_purge,soft_purge,[]},
+     {load_module,emqx_metrics,brutal_purge,soft_purge,[]},
+     {load_module,emqx_http_lib,brutal_purge,soft_purge,[]}]},
+   {<<".*">>,[]}]}.