diff --git a/configure.ac b/configure.ac
index 0b3807952..e88ef8352 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script.
 
 
 AC_PREREQ(2.61)
-AC_INIT([seafile], [4.4.2], [freeplant@gmail.com])
+AC_INIT([seafile], [5.0.0], [freeplant@gmail.com])
 AC_CONFIG_HEADER([config.h])
 
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/debian/changelog b/debian/changelog
index f264402c1..d14558dc4 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,8 @@
+seafile (5.0.0) stable; urgency=low
+
+  * Several improvments for seafile-client
+
+ -- plt <freeplant@gmail.com>  Tue, 24 Nov 2015 18:12:10 +0800
 seafile (4.4.2) stable; urgency=low
 
   * Several improvments for seafile-client
diff --git a/msi/Includes.wxi b/msi/Includes.wxi
index 35eed114b..cc9984d06 100644
--- a/msi/Includes.wxi
+++ b/msi/Includes.wxi
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Include Id="SeafileInclude">
-  <?define CurrentSeafileVersion="4.4.2" ?>
+  <?define CurrentSeafileVersion="5.0.0" ?>
 
   <!-- Update Guid 不能变 -->
   <?define CurrentUpdateGuid="65DED1C8-A5F1-4C49-8E7E-B0A8A5A6535C" ?>
@@ -91,7 +91,8 @@
   <!-- <?define ProductGuid="B8A63E43-798C-4764-9CCD-4B3F5DF71D57" ?> (4.3.4) -->
   <!-- <?define ProductGuid="547C775A-D7AE-4CB5-9387-694EEC49853A" ?> (4.4.0) -->
   <!-- <?define ProductGuid="E90F818C-243B-44A2-9A78-A7475152A6B1" ?> (4.4.1) -->
-  <?define ProductGuid="9EB9A762-9B6F-4D43-84DD-77DFE26B4B6D" ?>
+  <!-- <?define ProductGuid="9EB9A762-9B6F-4D43-84DD-77DFE26B4B6D" ?> (4.4.2) -->
+  <?define ProductGuid="E9CB3037-1812-445F-A133-F92D40EE6478" ?>
 
   <?define ShellGuidContextMenu="D14BEDD3-4E05-4F2F-B0DE-C0381E6AE606" ?>
   <?define  ShellGuidIconNormal="D14BEDD3-4E05-4F2F-B0DE-C0381E6AE607" ?>