diff --git a/CHANGES b/CHANGES
index 1ad329a5..59a3741b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,9 @@
+4.3.1.0 2020-10-25
+- Update abp.js (#2999)
+- Separate QR code scanning from MenuViewController (#2995)
+- Remove statistics strategy (#2994)
+- Other minor bug fixes and improvements
+
 4.3.0.0 2020-10-19
 - Cleanup and update dependencies (#2983)
 - Geosite group validation + PAC regeneration on version update (#2988)
diff --git a/appveyor.yml b/appveyor.yml
index 04d25c38..dca480c5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,7 +11,7 @@
 
 # version format
 # Build version format is taken from UI if it is not set
-# version: 1.0.{build}
+version: 4.3.1.{build}
 
 # # branches to build
 # branches:
diff --git a/shadowsocks-csharp/Controller/Service/UpdateChecker.cs b/shadowsocks-csharp/Controller/Service/UpdateChecker.cs
index 977ad65e..9cdac0de 100644
--- a/shadowsocks-csharp/Controller/Service/UpdateChecker.cs
+++ b/shadowsocks-csharp/Controller/Service/UpdateChecker.cs
@@ -33,7 +33,7 @@ namespace Shadowsocks.Controller
 
         public event EventHandler CheckUpdateCompleted;
 
-        public const string Version = "4.3.0.0";
+        public const string Version = "4.3.1.0";
         private readonly Version _version;
 
         public UpdateChecker()