diff --git a/contrib/Bitcoin.app/Contents/Info.plist b/contrib/Bitcoin.app/Contents/Info.plist
index 9145db10f15..1d520c93cf9 100644
--- a/contrib/Bitcoin.app/Contents/Info.plist
+++ b/contrib/Bitcoin.app/Contents/Info.plist
@@ -17,7 +17,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.4.2</string>
+	<string>0.4.3</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
diff --git a/doc/README b/doc/README
index 9c28f4c6929..d91509bd90d 100644
--- a/doc/README
+++ b/doc/README
@@ -1,4 +1,4 @@
-Bitcoin 0.4.2 BETA
+Bitcoin 0.4.3 BETA
 
 Copyright (c) 2009-2011 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying
diff --git a/doc/README_windows.txt b/doc/README_windows.txt
index 7a406d65a37..2f5761645a8 100644
--- a/doc/README_windows.txt
+++ b/doc/README_windows.txt
@@ -1,4 +1,4 @@
-Bitcoin 0.4.2 BETA
+Bitcoin 0.4.3 BETA
 
 Copyright (c) 2009-2011 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying
diff --git a/share/setup.nsi b/share/setup.nsi
index 4500dc48e1b..3455f7681cb 100644
--- a/share/setup.nsi
+++ b/share/setup.nsi
@@ -5,7 +5,7 @@ SetCompressor /SOLID lzma
 
 # General Symbol Definitions
 !define REGKEY "SOFTWARE\$(^Name)"
-!define VERSION 0.4.2
+!define VERSION 0.4.3
 !define COMPANY "Bitcoin project"
 !define URL http://www.bitcoin.org/
 
@@ -45,13 +45,13 @@ Var StartMenuGroup
 !insertmacro MUI_LANGUAGE English
 
 # Installer attributes
-OutFile bitcoin-0.4.2-win32-setup.exe
+OutFile bitcoin-0.4.3-win32-setup.exe
 InstallDir $PROGRAMFILES\Bitcoin
 CRCCheck on
 XPStyle on
 BrandingText " "
 ShowInstDetails show
-VIProductVersion 0.4.2.0
+VIProductVersion 0.4.3.0
 VIAddVersionKey ProductName Bitcoin
 VIAddVersionKey ProductVersion "${VERSION}"
 VIAddVersionKey CompanyName "${COMPANY}"
diff --git a/src/serialize.h b/src/serialize.h
index 64fae0367ea..7876990d04e 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -59,7 +59,7 @@ class CDataStream;
 class CAutoFile;
 static const unsigned int MAX_SIZE = 0x02000000;
 
-static const int VERSION = 40200;
+static const int VERSION = 40300;
 static const char* pszSubVer = "";
 static const bool VERSION_IS_BETA = true;