diff --git a/COPYING b/COPYING
index ab042014e82..0f9223ba6b5 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2009-2011 Bitcoin Developers
+Copyright (c) 2009-2012 Bitcoin Developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/doc/build-msw.txt b/doc/build-msw.txt
index 346be75f56c..7e3d1a7cbf0 100644
--- a/doc/build-msw.txt
+++ b/doc/build-msw.txt
@@ -1,4 +1,4 @@
-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/build-osx.txt b/doc/build-osx.txt
index 8d89745679a..2ae77067fce 100644
--- a/doc/build-osx.txt
+++ b/doc/build-osx.txt
@@ -1,4 +1,4 @@
-Copyright (c) 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 the
diff --git a/doc/build-unix.txt b/doc/build-unix.txt
index e1a1805aa3e..c5b4205084d 100644
--- a/doc/build-unix.txt
+++ b/doc/build-unix.txt
@@ -1,5 +1,4 @@
-Copyright (c) 2009-2010 Satoshi Nakamoto
-Copyright (c) 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/base58.h b/src/base58.h
index d3a153b1e4e..71168cfaca1 100644
--- a/src/base58.h
+++ b/src/base58.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/bignum.h b/src/bignum.h
index 135eade6792..4143f6003d6 100644
--- a/src/bignum.h
+++ b/src/bignum.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_BIGNUM_H
diff --git a/src/bitcoinrpc.cpp b/src/bitcoinrpc.cpp
index 903bde8004d..7fe8f216826 100644
--- a/src/bitcoinrpc.cpp
+++ b/src/bitcoinrpc.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 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/bitcoinrpc.h b/src/bitcoinrpc.h
index f2674007973..a9cf3296f72 100644
--- a/src/bitcoinrpc.h
+++ b/src/bitcoinrpc.h
@@ -1,5 +1,5 @@
 // Copyright (c) 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/checkpoints.cpp b/src/checkpoints.cpp
index 508f72b3765..f78712ef4ba 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/checkpoints.h b/src/checkpoints.h
index 9d52da404fb..ac2076c8fb5 100644
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -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.
 #ifndef BITCOIN_CHECKPOINT_H
diff --git a/src/compat.h b/src/compat.h
index 5c1fcc3d6ee..882610031a9 100644
--- a/src/compat.h
+++ b/src/compat.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_COMPAT_H
diff --git a/src/crypter.cpp b/src/crypter.cpp
index 7f53e22f1e3..6643bcddcd8 100644
--- a/src/crypter.cpp
+++ b/src/crypter.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 COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypter.h b/src/crypter.h
index e52ebc01c75..b7fc788807d 100644
--- a/src/crypter.h
+++ b/src/crypter.h
@@ -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 COPYING or http://www.opensource.org/licenses/mit-license.php.
 #ifndef __CRYPTER_H__
diff --git a/src/db.cpp b/src/db.cpp
index 196363a547a..3bdda615692 100644
--- a/src/db.cpp
+++ b/src/db.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/db.h b/src/db.h
index e593ae28ed1..27479fef0e8 100644
--- a/src/db.h
+++ b/src/db.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_DB_H
diff --git a/src/headers.h b/src/headers.h
index 127cf412821..88f5476f8f6 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/init.cpp b/src/init.cpp
index c4c70f6cfc2..d39e18e4859 100644
--- a/src/init.cpp
+++ b/src/init.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/init.h b/src/init.h
index 6721b2899be..0d60e7549f5 100644
--- a/src/init.h
+++ b/src/init.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_INIT_H
diff --git a/src/irc.cpp b/src/irc.cpp
index 78d86e11968..e79577269eb 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/irc.h b/src/irc.h
index 6945b2cecb7..f5adaa12768 100644
--- a/src/irc.h
+++ b/src/irc.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_IRC_H
diff --git a/src/key.cpp b/src/key.cpp
index 400b1887c5c..e0844412d9b 100644
--- a/src/key.cpp
+++ b/src/key.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/key.h b/src/key.h
index f7bdc87c771..9e92897e26b 100644
--- a/src/key.h
+++ b/src/key.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_KEY_H
diff --git a/src/keystore.cpp b/src/keystore.cpp
index 61d84ec0f22..4a59010fdbd 100644
--- a/src/keystore.cpp
+++ b/src/keystore.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/keystore.h b/src/keystore.h
index 1d068b4d75e..7eea02def32 100644
--- a/src/keystore.h
+++ b/src/keystore.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_KEYSTORE_H
diff --git a/src/main.cpp b/src/main.cpp
index 52812187d4e..f78133b535c 100644
--- a/src/main.cpp
+++ b/src/main.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/main.h b/src/main.h
index 2ec9f97f6e8..908ada7d4fe 100644
--- a/src/main.h
+++ b/src/main.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_MAIN_H
diff --git a/src/net.cpp b/src/net.cpp
index b6f2951d6ef..f0ea5506e2e 100644
--- a/src/net.cpp
+++ b/src/net.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 9f58d1e5d31..2be9541cd14 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/netbase.cpp b/src/netbase.cpp
index 54e31191534..54aa933a542 100644
--- a/src/netbase.cpp
+++ b/src/netbase.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/netbase.h b/src/netbase.h
index 04ced182606..e65e138ef5e 100644
--- a/src/netbase.h
+++ b/src/netbase.h
@@ -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.
 #ifndef BITCOIN_NETBASE_H
diff --git a/src/noui.h b/src/noui.h
index 754c2225fce..458fc647a01 100644
--- a/src/noui.h
+++ b/src/noui.h
@@ -1,5 +1,5 @@
 // Copyright (c) 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_NOUI_H
diff --git a/src/protocol.cpp b/src/protocol.cpp
index 45f08082e93..15fbf9fc0d1 100644
--- a/src/protocol.cpp
+++ b/src/protocol.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/protocol.h b/src/protocol.h
index a0bf677aacc..9ebbfad701b 100644
--- a/src/protocol.h
+++ b/src/protocol.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/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 85ece9e2ceb..b25216fe982 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -1,5 +1,5 @@
 /*
- * W.J. van der Laan 2011
+ * W.J. van der Laan 20011-2012
  */
 #include "bitcoingui.h"
 #include "clientmodel.h"
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 3e0a12b9cf1..f67a5d6b569 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -1,8 +1,8 @@
 /*
  * Qt4 bitcoin GUI.
  *
- * W.J. van der Laan 2011
- * The Bitcoin Developers 2011
+ * W.J. van der Laan 20011-2012
+ * The Bitcoin Developers 20011-2012
  */
 #include "bitcoingui.h"
 #include "transactiontablemodel.h"
diff --git a/src/qt/qtipcserver.cpp b/src/qt/qtipcserver.cpp
index 2ed8b915c5c..90d5c142113 100644
--- a/src/qt/qtipcserver.cpp
+++ b/src/qt/qtipcserver.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/rpcdump.cpp b/src/rpcdump.cpp
index 471421e75ce..d59536e2547 100644
--- a/src/rpcdump.cpp
+++ b/src/rpcdump.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 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.
 
diff --git a/src/script.cpp b/src/script.cpp
index c0523855bdb..b6f120289a6 100644
--- a/src/script.cpp
+++ b/src/script.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/script.h b/src/script.h
index 4760b99a9bc..46f2d31bbc0 100644
--- a/src/script.h
+++ b/src/script.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 H_BITCOIN_SCRIPT
diff --git a/src/serialize.h b/src/serialize.h
index c9dbdf7f9da..6eb4f4ee417 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/uint256.h b/src/uint256.h
index 0d274085759..5b1ba9f6f7a 100644
--- a/src/uint256.h
+++ b/src/uint256.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_UINT256_H
diff --git a/src/util.cpp b/src/util.cpp
index 8bbdfbc834e..12ac076f0d5 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 20fdb36fe66..8dcedb147b4 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.cpp b/src/wallet.cpp
index a196044f1f2..1e769d7e615 100644
--- a/src/wallet.cpp
+++ b/src/wallet.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/wallet.h b/src/wallet.h
index 113210461d5..3fdef50c033 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