diff --git a/ChangeLog.md b/ChangeLog.md
index e92460b13..83b31120a 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -19,11 +19,8 @@
 ## V0.21.0 (Current Development Version)
 
 *   Updated
-    *   Supported an assignment with an object key style.
-        *   `{ x, y } = { x: 10, y: 100 }` means `x = 10, y = 100`.
-    *   Some bug fixes and improvement.
 
-## V0.20.0 (20th Preview Release) - 2021/01/29
+## V0.20.1 (20th Preview Release) - 2021/01/29
 
 *   Updated
     *   Added the same directory as a current parsing file to a search path for `using`.
@@ -34,6 +31,8 @@
         *   `var { x: a, y: b } = { x: 10, y: 100 }` means `a = 10, b = 100`.
     *   Supported a pattern matching syntax in assignment, declaration, and function arguments.
         *   `var { x: a, y: 100 } = { x: 10, y: m }` means `a = 10` if `m == 100`, otherwise an exception occurs.
+    *   Supported an object key style also with an assignment.
+        *   `{ x, y } = { x: 10, y: 100 }` means `x = 10, y = 100`.
     *   Relocation of build environment.
         *   Created a `build` directory and moved files needed at building to the `build` directory.
     *   Some bug fixes and improvement.
diff --git a/README.md b/README.md
index fa7f2b1ca..b188e1cf3 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Looks like JavaScript, feels like Ruby, and it is a script language fitting in C
 
 ## Topics
 
-* **Preview Release 0.20.0 is now available!** See <a href="https://github.com/Kray-G/kinx/releases">Releases</a>.<br />
+* **Preview Release 0.20.1 is now available!** See <a href="https://github.com/Kray-G/kinx/releases">Releases</a>.<br />
 * Now the Kinx is supporting the platform of **x86-64 Windows and Linux only**,  because I have no environment.
   *  If you are interested in other platforms, **please check [here](#how-to-support-a-platform)**.
 *  **See [ChangeLog.md](ChangeLog.md)** about the history of this project.
diff --git a/build/kinx.rc b/build/kinx.rc
index 0555e11ca..2842d1d29 100644
--- a/build/kinx.rc
+++ b/build/kinx.rc
@@ -3,8 +3,8 @@
 KINXICO ICON DISCARDABLE "kinxi.ico"
 
 VS_VERSION_INFO    VERSIONINFO
-FILEVERSION        0,20,0,0
-PRODUCTVERSION     0,20,0,0
+FILEVERSION        0,20,1,0
+PRODUCTVERSION     0,20,1,0
 FILEFLAGSMASK      VS_FFI_FILEFLAGSMASK
 FILEFLAGS          0x00000000L
 FILEOS             VOS__WINDOWS32
@@ -22,12 +22,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName",      "-"
             VALUE "FileDescription",  "The Script Kinx"
-            VALUE "FileVersion",      "0.20.0.0\0"
+            VALUE "FileVersion",      "0.20.1.0\0"
             VALUE "InternalName",     "Kinx\0"
             VALUE "LegalCopyright",   "Copyright (C) 2019-2021 Kray-G\0"
             VALUE "OriginalFilename", "kinx.exe\0"
             VALUE "ProductName",      "Kinx\0"
-            VALUE "ProductVersion",   "0.20.0.0\0"
+            VALUE "ProductVersion",   "0.20.1.0\0"
         END
     END
 END
diff --git a/build/make.cmd b/build/make.cmd
index e0c5a8554..779316962 100644
--- a/build/make.cmd
+++ b/build/make.cmd
@@ -2,7 +2,7 @@
 
 if "%1" == "" (
     if exist "..\kinx.exe" (
-        ..\kinx.exe utility\VersionSetup.kx 0.20.0
+        ..\kinx.exe utility\VersionSetup.kx 0.20.1
     )
     cl.exe /DWINMAIN /Feaddpath.exe utility\src\addpath.c Advapi32.lib User32.lib /link /SUBSYSTEM:WINDOWS
     cl.exe /Feaddpathc.exe utility\src\addpath.c Advapi32.lib User32.lib
diff --git a/build/mkdeb.sh b/build/mkdeb.sh
index 0694632a4..ce1a6a08b 100755
--- a/build/mkdeb.sh
+++ b/build/mkdeb.sh
@@ -9,7 +9,7 @@ checkinstall -D -y \
   --nodoc \
   --reset-uids=yes \
   --pkgname=kinx \
-  --pkgversion="0.20.0" \
+  --pkgversion="0.20.1" \
   --pkgrelease="0" \
   --pkggroup="kinx" \
   --arch=amd64 \
diff --git a/include/version.h b/include/version.h
index 9733cc2ee..98b26a1d1 100644
--- a/include/version.h
+++ b/include/version.h
@@ -7,7 +7,7 @@
 #endif
 #define VER_MAJ     0
 #define VER_MIN     20
-#define VER_PAT     0
+#define VER_PAT     1
 #define VER_SUFFIX  ""
 
 #endif /* KX_VERSION_H */
diff --git a/install.nsi b/install.nsi
index a78bdccca..a9b9664ee 100644
--- a/install.nsi
+++ b/install.nsi
@@ -14,7 +14,7 @@ Unicode True
 
 # Version
 !define MAJ_VERSION "1"
-!define VERSION_STRING "0.20.0"
+!define VERSION_STRING "0.20.1"
 
 # Application Name
 Name "Kinx version ${VERSION_STRING} for x64"