diff --git a/COPYING b/COPYING
index ab042014e8235..0f9223ba6b5eb 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 346be75f56c6a..7e3d1a7cbf0d0 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 8d89745679a9a..2ae77067fcef2 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 e1a1805aa3e97..c5b4205084d21 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 d3a153b1e4ea6..71168cfaca126 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 135eade6792ed..4143f6003d6f7 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 903bde8004dbe..7fe8f2168261a 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 f2674007973e7..a9cf3296f7238 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 508f72b376595..f78712ef4ba23 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 9d52da404fbc7..ac2076c8fb506 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 5c1fcc3d6eeb1..882610031a969 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 7f53e22f1e300..6643bcddcd844 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 e52ebc01c751f..b7fc788807d66 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 196363a547abe..3bdda61569218 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 e593ae28ed172..27479fef0e875 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 127cf4128217f..88f5476f8f6d6 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 c4c70f6cfc2ca..d39e18e48598d 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 6721b2899be88..0d60e7549f585 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 78d86e119687d..e79577269eb95 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 6945b2cecb7a3..f5adaa12768a1 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 400b1887c5c17..e0844412d9b46 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 f7bdc87c771ea..9e92897e26bc7 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 61d84ec0f224c..4a59010fdbd47 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 1d068b4d75eee..7eea02def3291 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 52812187d4e2d..f78133b535ce4 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 2ec9f97f6e8ab..908ada7d4fe1a 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 b6f2951d6ef0e..f0ea5506e2ef6 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 9f58d1e5d3151..2be9541cd14fd 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 54e3119153445..54aa933a54268 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 04ced1826065b..e65e138ef5e3a 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 754c2225fce56..458fc647a015e 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 45f08082e9310..15fbf9fc0d1c7 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 a0bf677aacc08..9ebbfad701b8a 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 85ece9e2ceb62..b25216fe982c0 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 3e0a12b9cf14c..f67a5d6b569b7 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 2ed8b915c5cb6..90d5c142113d2 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 471421e75ce99..d59536e2547eb 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 c0523855bdb09..b6f120289a643 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 4760b99a9bc77..46f2d31bbc02f 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 c9dbdf7f9da39..6eb4f4ee41730 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 0d274085759b6..5b1ba9f6f7a76 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 8bbdfbc834e76..12ac076f0d527 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 20fdb36fe6677..8dcedb147b4a8 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 a196044f1f2ed..1e769d7e615c1 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 113210461d517..3fdef50c0332b 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