diff --git a/doc/README b/doc/README
index e3b8ffb3..6af11c34 100644
--- a/doc/README
+++ b/doc/README
@@ -1,6 +1,6 @@
 Bitcoin 0.5.0.4 BETA
 
-Copyright (c) 2009-2011 Bitcoin Developers
+Copyright (c) 2009-2012 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying
 file license.txt or http://www.opensource.org/licenses/mit-license.php.
 This product includes software developed by the OpenSSL Project for use in
diff --git a/doc/README_windows.txt b/doc/README_windows.txt
index b117f512..25cb0692 100644
--- a/doc/README_windows.txt
+++ b/doc/README_windows.txt
@@ -1,6 +1,6 @@
 Bitcoin 0.5.0.4 BETA
 
-Copyright (c) 2009-2011 Bitcoin Developers
+Copyright (c) 2009-2012 Bitcoin Developers
 Distributed under the MIT/X11 software license, see the accompanying
 file license.txt or http://www.opensource.org/licenses/mit-license.php.
 This product includes software developed by the OpenSSL Project for use in
diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index 508f72b3..f78712ef 100644
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/headers.h b/src/headers.h
index 99f1877c..ea011c56 100644
--- a/src/headers.h
+++ b/src/headers.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/irc.cpp b/src/irc.cpp
index fe96a90a..b632b965 100644
--- a/src/irc.cpp
+++ b/src/irc.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/net.h b/src/net.h
index 8a74b253..9ce7b42e 100644
--- a/src/net.h
+++ b/src/net.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_NET_H
diff --git a/src/serialize.h b/src/serialize.h
index d5d6e618..f5772024 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_SERIALIZE_H
diff --git a/src/util.cpp b/src/util.cpp
index 3472111b..b17166a0 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #include "headers.h"
diff --git a/src/util.h b/src/util.h
index c57e82ba..e78fd134 100644
--- a/src/util.h
+++ b/src/util.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_UTIL_H
diff --git a/src/wallet.h b/src/wallet.h
index f81b2444..62dd6d52 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 #ifndef BITCOIN_WALLET_H