diff --git a/Build/Changes.txt b/Build/Changes.txt
index 9a54c9917..5325649d8 100644
--- a/Build/Changes.txt
+++ b/Build/Changes.txt
@@ -34,13 +34,15 @@ SUP - (S)et(UP) / Installer Package
 
 
 ========================================================
-Current BETA/RC Version 5.20.1221.(build_#) (2020-12-21)
+Current BETA/RC Version 5.20.1222.(build_#) (2020-12-22)
 ========================================================
 
 --------------------------------------------------------
 NEW:
 --------------------------------------------------------
 [.xxx.x]- .
+[1222.1]- Kotlin Source Lexer based on Zufuliu's Kotlin Lexer code base.
+[1222.1]- Dart Lexer based on Zufuliu's Dart Lexer code base.
 [1221.1]- TinyExpr: additional number parsing for binary (0b...) and octal (0o...) number formats.
 [1109.1]- Extension ".pkb" to SQL Lexer.
 [1012.1]- Support for Windows 10 20H2 Version 2009 (Build 19042).
diff --git a/Build/minipath.ini b/Build/minipath.ini
index f653fc1ad..6a1b8db18 100644
--- a/Build/minipath.ini
+++ b/Build/minipath.ini
@@ -75,7 +75,7 @@ Go Source Code=*.go
 ;Java Source Code=*.java;*.jad;*.aidl;*.bsh
 JavaScript=*.js;*.jse;*.jsm;*.as;*.mjs;*.qs
 ;JSON=*.json;*.har;*.ipynb;*.wxcp;*.jshintrc;*.eslintrc;*.babelrc;*.prettierrc;*.stylelintrc;*.jsonld;*.jsonc;*.arcconfig;*.arclint;*.jscop
-;Kotlin=*.kt;*.kts;*.ktm
+;Kotlin Source Code=*.kt;*.kts;*.ktm
 ;LaTeX Files=*.tex;*.latex;*.sty;*.texi;*.texinfo;*.txi
 ;Lua Script=*.lua;*.wlua;*.nse;*.luadoc;*.luax
 Makefiles=*.mak;*.make;*.mk;*.dsp;*.msc;*.msvc;*.am;*.pro;*.pri;*.gmk;*.ninja;*.dsw
diff --git a/Versions/day.txt b/Versions/day.txt
index 3acca38af..9d63033fa 100644
--- a/Versions/day.txt
+++ b/Versions/day.txt
@@ -1 +1 @@
-1221
+1222
diff --git a/res/Notepad3.exe.manifest.conf b/res/Notepad3.exe.manifest.conf
index 26632a52e..6bc600355 100644
--- a/res/Notepad3.exe.manifest.conf
+++ b/res/Notepad3.exe.manifest.conf
@@ -3,7 +3,7 @@
   <assemblyIdentity
     name="Notepad3"
     processorArchitecture="*"
-    version="5.20.1221.1"
+    version="5.20.1222.1"
     type="win32"
   />
   <description>Notepad3 beta</description>
diff --git a/src/VersionEx.h b/src/VersionEx.h
index a4e81e51b..533c704ff 100644
--- a/src/VersionEx.h
+++ b/src/VersionEx.h
@@ -8,7 +8,7 @@
 #define SAPPNAME "Notepad3"
 #define VERSION_MAJOR 5
 #define VERSION_MINOR 20
-#define VERSION_REV 1221
+#define VERSION_REV 1222
 #define VERSION_BUILD 1
 #define SCINTILLA_VER 446
 #define ONIGURUMA_REGEX_VER 6.9.6