diff --git a/README.md b/README.md
index bfdf6ca..3debefb 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U v2.2.1
+# Digital Synth VRA8-U v2.2.2
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
@@ -14,12 +14,12 @@
 
 ## Caution about Arduino AVR Boards Version
 
-- We *strongly recommend* **Arduino AVR Boards version version 1.8.5 (or from 1.8.3 to 1.8.6)**
+- We *strongly recommend* **Arduino AVR Boards version 1.8.5 (or from 1.8.3 to 1.8.6)**
     - If you use another version, the sketch *may not work well*: CPU Busy LED (LED L) *may continue to be lit*
 
 ## Change History
 
-- v2.2.1:
+- v2.2.2:
     - Separate Voice Mode Lgt (Legato) into Lgt (Legato) and LP (Legato Portamento)
     - Fix Voice Mode value 32 to be Mon (Monophonic) mode
 - v2.1.0:
@@ -156,11 +156,11 @@ This image was created with Fritzing.
 
 ![CC0](http://i.creativecommons.org/p/zero/1.0/88x31.png)
 
-Digital Synth VRA8-U v2.2.1 by ISGK Instruments (Ryo Ishigaki)
+Digital Synth VRA8-U v2.2.2 by ISGK Instruments (Ryo Ishigaki)
 
 To the extent possible under law, ISGK Instruments (Ryo Ishigaki)
 has waived all copyright and related or neighboring rights
-to Digital Synth VRA8-U v2.2.1.
+to Digital Synth VRA8-U v2.2.2.
 
 You should have received a copy of the CC0 legalcode along with this
 work.  If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
diff --git a/VRA8-U-MIDI-Implementation-Chart.md b/VRA8-U-MIDI-Implementation-Chart.md
index 2e128b7..6a42d4a 100644
--- a/VRA8-U-MIDI-Implementation-Chart.md
+++ b/VRA8-U-MIDI-Implementation-Chart.md
@@ -1,6 +1,6 @@
 ```
   [United Synthesizer]                                            Date: 2023-05-04                  
-  Model: Digital Synth VRA8-U     MIDI Implementation Chart       Version: 2.2.1                    
+  Model: Digital Synth VRA8-U     MIDI Implementation Chart       Version: 2.2.2                    
 +-------------------------------+---------------+---------------+----------------------------------+
 | Function...                   | Transmitted   | Recognized    | Remarks                          |
 +-------------------------------+---------------+---------------+----------------------------------+
diff --git a/VRA8-U-Parameter-Guide.md b/VRA8-U-Parameter-Guide.md
index 2a05451..e078d6e 100644
--- a/VRA8-U-Parameter-Guide.md
+++ b/VRA8-U-Parameter-Guide.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U Parameter Guide v2.2.1
+# Digital Synth VRA8-U Parameter Guide v2.2.2
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
diff --git a/VRA8-U-type-16-Operation-Guide.md b/VRA8-U-type-16-Operation-Guide.md
index 481ee75..98ce7ff 100644
--- a/VRA8-U-type-16-Operation-Guide.md
+++ b/VRA8-U-type-16-Operation-Guide.md
@@ -1,4 +1,4 @@
-# Digital Synth VRA8-U type-16 Operation Guide v2.2.1
+# Digital Synth VRA8-U type-16 Operation Guide v2.2.2
 
 - 2023-05-04 ISGK Instruments
 - <https://github.com/risgk/digital-synth-vra8-u>
diff --git a/vra8-u-ctrl.html b/vra8-u-ctrl.html
index 6bbf6a2..7ebed3f 100644
--- a/vra8-u-ctrl.html
+++ b/vra8-u-ctrl.html
@@ -41,7 +41,7 @@
 }
 </style>
 <script>
-const APP_NAME_VERSION = "VRA8-U CTRL v2.2.1";
+const APP_NAME_VERSION = "VRA8-U CTRL v2.2.2";
 
 const MIDI_CH        = 0;       // Basic Channel 1
 const NOTE_OFF       = 0x80;
diff --git a/vra8-u-prog-preset.json b/vra8-u-prog-preset.json
index 7f2018d..1c1b8fd 100644
--- a/vra8-u-prog-preset.json
+++ b/vra8-u-prog-preset.json
@@ -1,5 +1,5 @@
 {
-  "_version     " : "VRA8-U CTRL v2.2.1",
+  "_version     " : "VRA8-U CTRL v2.2.2",
   "_comment     " : "  CURRENT  #8   #9   #10  #11  #12  #13  #14  #15  ",
   "OSC_1_WAVE     " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 96 , 0  , 0  ] ],
   "OSC_1_SHAPE    " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 0  , 0  , 0  ] ],
diff --git a/vra8-u-type-16-ctrl.html b/vra8-u-type-16-ctrl.html
index 2e11064..0c50d5f 100644
--- a/vra8-u-type-16-ctrl.html
+++ b/vra8-u-type-16-ctrl.html
@@ -41,7 +41,7 @@
 }
 </style>
 <script>
-const APP_NAME_VERSION = "VRA8-U type-16 CTRL v2.2.1";
+const APP_NAME_VERSION = "VRA8-U type-16 CTRL v2.2.2";
 
 const MIDI_CH        = 0;       // Basic Channel 1
 const NOTE_OFF       = 0x80;
diff --git a/vra8-u-type-16-prog-preset.json b/vra8-u-type-16-prog-preset.json
index d456c91..624de8d 100644
--- a/vra8-u-type-16-prog-preset.json
+++ b/vra8-u-type-16-prog-preset.json
@@ -1,5 +1,5 @@
 {
-  "_version     " : "VRA8-U type-16 CTRL v2.2.1",
+  "_version     " : "VRA8-U type-16 CTRL v2.2.2",
   "_comment     " : "  CURRENT  #8   #9   #10  #11  #12  #13  #14  #15  ",
   "OSC_1_WAVE     " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 96 , 0  , 0  ] ],
   "OSC_1_SHAPE    " : [ [0  ], [0  , 0  , 0  , 0  , 0  , 0  , 0  , 0  ] ],