diff --git a/fastlane/metadata/android/de-DE/changelogs/2077.txt b/fastlane/metadata/android/de-DE/changelogs/2077.txt
new file mode 100644
index 00000000..7a7c9456
--- /dev/null
+++ b/fastlane/metadata/android/de-DE/changelogs/2077.txt
@@ -0,0 +1,3 @@
+v1.1.21
+
+* Korrigiert die Richtung des Symbols für die Schaltflächen "Zurücknehmen" und "Schritt vorwärts" im Layout "Von rechts nach links".
diff --git a/fastlane/metadata/android/en-US/changelogs/2077.txt b/fastlane/metadata/android/en-US/changelogs/2077.txt
new file mode 100644
index 00000000..e7f56840
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/2077.txt
@@ -0,0 +1,3 @@
+v1.1.21
+
+* Fix take-back and step-forward buttons icon direction in right-to-left layout.
diff --git a/fastlane/metadata/android/es-ES/changelogs/2077.txt b/fastlane/metadata/android/es-ES/changelogs/2077.txt
new file mode 100644
index 00000000..80cbd6ca
--- /dev/null
+++ b/fastlane/metadata/android/es-ES/changelogs/2077.txt
@@ -0,0 +1,3 @@
+v1.1.21
+
+* Corregir la dirección de los iconos de los botones de retroceso y avance en el diseño de derecha a izquierda.
diff --git a/fastlane/metadata/android/zh-CN/changelogs/2077.txt b/fastlane/metadata/android/zh-CN/changelogs/2077.txt
new file mode 100644
index 00000000..f436d91b
--- /dev/null
+++ b/fastlane/metadata/android/zh-CN/changelogs/2077.txt
@@ -0,0 +1,3 @@
+v1.1.21
+
+* 对于从右到左布局，修复中回退和前进按钮的图标方向。
diff --git a/millgame.rc b/millgame.rc
index 65547914..997b9107 100644
--- a/millgame.rc
+++ b/millgame.rc
@@ -21,8 +21,8 @@ IDI_ICON1		ICON		DISCARDABLE	"MillGame.ico"
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,1,20,0
- PRODUCTVERSION 1,1,20,0
+ FILEVERSION 1,1,21,0
+ PRODUCTVERSION 1,1,21,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -39,12 +39,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Calcitem"
             VALUE "FileDescription", "Mill Game"
-            VALUE "FileVersion", "1.1.20.0"
+            VALUE "FileVersion", "1.1.21.0"
             VALUE "InternalName", "Sanmill"
             VALUE "LegalCopyright", "(C) 2019-2021 Calcitem, All Rights Reserved."
             VALUE "OriginalFilename", "MillGame.exe"
             VALUE "ProductName", "MillGame"
-            VALUE "ProductVersion", "1.1.20.0"
+            VALUE "ProductVersion", "1.1.21.0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/ui/flutter_app/pubspec.yaml b/src/ui/flutter_app/pubspec.yaml
index cdb8f478..129bc9af 100644
--- a/src/ui/flutter_app/pubspec.yaml
+++ b/src/ui/flutter_app/pubspec.yaml
@@ -1,7 +1,7 @@
 name: sanmill
 description: Sanmill is a open-source, powerful UCI-like Nine Men's Morris (and its variants) program.
 
-version: 1.1.20+2075
+version: 1.1.21+2077
 
 environment:
   sdk: '>=2.12.0 <3.0.0'
diff --git a/src/ui/flutter_app/windows/runner/Runner.rc b/src/ui/flutter_app/windows/runner/Runner.rc
index d81d7a79..96648b3d 100644
--- a/src/ui/flutter_app/windows/runner/Runner.rc
+++ b/src/ui/flutter_app/windows/runner/Runner.rc
@@ -63,13 +63,13 @@ IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
 #ifdef FLUTTER_BUILD_NUMBER
 #define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
 #else
-#define VERSION_AS_NUMBER 1,1,20
+#define VERSION_AS_NUMBER 1,1,21
 #endif
 
 #ifdef FLUTTER_BUILD_NAME
 #define VERSION_AS_STRING #FLUTTER_BUILD_NAME
 #else
-#define VERSION_AS_STRING "1.1.20"
+#define VERSION_AS_STRING "1.1.21"
 #endif
 
 VS_VERSION_INFO VERSIONINFO