diff --git a/LICENSE b/LICENSE
index 029708fce..820a70cff 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.0beta56, November 25, 2010, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.0beta56, December 7, 2010, are
 Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 25, 2010
+December 7, 2010
diff --git a/README b/README
index 1b7e04cf5..5fda3d228 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.5.0beta56 - November 25, 2010 (shared library 15.0)
+README for libpng version 1.5.0beta56 - December 7, 2010 (shared library 15.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/libpngpf.3 b/libpngpf.3
index 6c1f92402..19e32fc3f 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "November 25, 2010"
+.TH LIBPNGPF 3 "December 7, 2010"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.0beta56
 (private functions)
diff --git a/png.5 b/png.5
index 2e8f71bfb..b010e7535 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "November 25, 2010"
+.TH PNG 5 "December 7, 2010"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index 046173b48..9d927e66c 100644
--- a/png.c
+++ b/png.c
@@ -556,13 +556,13 @@ png_get_copyright(png_structp png_ptr)
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.5.0beta56 - December 5, 2010" PNG_STRING_NEWLINE \
+     "libpng version 1.5.0beta56 - December 7, 2010" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2010 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
      "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
      "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
      PNG_STRING_NEWLINE;
 #  else
-      return "libpng version 1.5.0beta56 - December 5, 2010\
+      return "libpng version 1.5.0beta56 - December 7, 2010\
       Copyright (c) 1998-2010 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index f5a52e155..533e6c391 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.5.0beta56 - November 25, 2010
+libpng version 1.5.0beta56 - December 7, 2010
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 4a7b1d289..ddbb92df9 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.5.0beta56 - November 25, 2010
+ * libpng version 1.5.0beta56 - December 7, 2010
  *
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  *