diff --git a/README.md b/README.md
index 6ea9efc..ce927d4 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@ Shadowsocks for Windows
 
 [![Build Status]][Appveyor]
 
+Currently beta. Please file an issue if you find any bugs.
+
 ### Features
 
 1. Native Windows UI
@@ -20,9 +22,6 @@ For Windows 7 and older, please download Shadowsocks-win-x.x.x.zip.
 
 For Windows 8.1 and newer, please download Shadowsocks-win-dotnet4.0-x.x.x.zip.
 
-Notice there's a bug on .Net 4.0 version. If you encounter crashes, try using
-.Net 2.0 version. Please help us resolve this issue if you have any clue.
-
 ### Usage
 
 1. Find Shadowsocks icon in notification tray
diff --git a/shadowsocks-csharp/Properties/Resources.Designer.cs b/shadowsocks-csharp/Properties/Resources.Designer.cs
index 45ab16d..d292578 100755
--- a/shadowsocks-csharp/Properties/Resources.Designer.cs
+++ b/shadowsocks-csharp/Properties/Resources.Designer.cs
@@ -71,12 +71,12 @@ namespace Shadowsocks.Properties {
         }
         
         /// <summary>
-        ///   Looks up a localized string similar to proxyAddress = &quot;__POLIPO_BIND_IP__&quot;
-        ///
-        ///socksParentProxy = &quot;127.0.0.1:__SOCKS_PORT__&quot;
-        ///socksProxyType = socks5
-        ///diskCacheRoot = &quot;&quot;
-        ///localDocumentRoot = &quot;&quot;
+        ///   Looks up a localized string similar to proxyAddress = &quot;__POLIPO_BIND_IP__&quot;
+        ///
+        ///socksParentProxy = &quot;127.0.0.1:__SOCKS_PORT__&quot;
+        ///socksProxyType = socks5
+        ///diskCacheRoot = &quot;&quot;
+        ///localDocumentRoot = &quot;&quot;
         ///.
         /// </summary>
         internal static string polipo_config {
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index d19fbc9..b648b83 100755
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Shadowsocks</RootNamespace>
     <AssemblyName>Shadowsocks</AssemblyName>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <StartupObject>
     </StartupObject>