diff --git a/INSTALL b/INSTALL
index c9add29..bb7173e 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,5 +1,5 @@
 
-Installing libpng version 1.2.55beta02 - November 22, 2015
+Installing libpng version 1.2.55beta02 - November 23, 2015
 
 On Unix/Linux and similar systems, you can simply type
 
diff --git a/LICENSE b/LICENSE
index c38a576..a00fda6 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 22, 2015, are
+libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 23, 2015, are
 Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
@@ -107,4 +107,4 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 22, 2015
+November 23, 2015
diff --git a/README b/README
index 0625ef9..b9e6dda 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.2.55beta02 - November 22, 2015 (shared library 12.0)
+README for libpng version 1.2.55beta02 - November 23, 2015 (shared library 12.0)
 See the note about version numbers near the top of png.h
 
 See INSTALL for instructions on how to install libpng.
diff --git a/Y2KINFO b/Y2KINFO
index 360b32a..4522b2f 100644
--- a/Y2KINFO
+++ b/Y2KINFO
@@ -1,7 +1,7 @@
    Y2K compliance in libpng:
    =========================
 
-      November 22, 2015
+      November 23, 2015
 
       Since the PNG Development group is an ad-hoc body, we can't make
       an official declaration.
diff --git a/libpng-1.2.55beta02.txt b/libpng-1.2.55beta02.txt
index e6ad4e1..7f3aa07 100644
--- a/libpng-1.2.55beta02.txt
+++ b/libpng-1.2.55beta02.txt
@@ -1,6 +1,6 @@
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.55beta02 - November 22, 2015
+ libpng version 1.2.55beta02 - November 23, 2015
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.55beta02 - November 22, 2015
+ libpng versions 0.97, January 1998, through 1.2.55beta02 - November 23, 2015
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
diff --git a/libpng.3 b/libpng.3
index 0bfff9f..1d3ef3c 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "November 22, 2015"
+.TH LIBPNG 3 "November 23, 2015"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.2.55beta02
 .SH SYNOPSIS
@@ -410,7 +410,7 @@
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.55beta02 - November 22, 2015
+ libpng version 1.2.55beta02 - November 23, 2015
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
@@ -421,7 +421,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.2.55beta02 - November 22, 2015
+ libpng versions 0.97, January 1998, through 1.2.55beta02 - November 23, 2015
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2014 Glenn Randers-Pehrson
 
@@ -3725,7 +3725,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.2.55beta02 - November 22, 2015:
+Libpng version 1.2.55beta02 - November 23, 2015:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -3750,7 +3750,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 22, 2015, are
+libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 23, 2015, are
 Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
 derived from libpng-1.0.6, and are distributed according to the same
 disclaimer and license as libpng-1.0.6 with the following individuals
@@ -3847,7 +3847,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-November 22, 2015
+November 23, 2015
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index 9632afa..f28d40f 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "November 22, 2015"
+.TH LIBPNGPF 3 "November 23, 2015"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.2.55beta02
 (private functions)
diff --git a/png.5 b/png.5
index 04e8335..5744d0d 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "November 22, 2015"
+.TH PNG 5 "November 23, 2015"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/png.c b/png.c
index ecde084..4ea4ce2 100644
--- a/png.c
+++ b/png.c
@@ -731,13 +731,13 @@
 #else
 #ifdef __STDC__
    return ((png_charp) PNG_STRING_NEWLINE \
-     "libpng version 1.2.55beta02 - November 22, 2015" PNG_STRING_NEWLINE \
+     "libpng version 1.2.55beta02 - November 23, 2015" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2015 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 ((png_charp) "libpng version 1.2.55beta02 - November 22, 2015\
+      return ((png_charp) "libpng version 1.2.55beta02 - November 23, 2015\
       Copyright (c) 1998-2015 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.");
diff --git a/png.h b/png.h
index 89c2e39..0cd6bdf 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.2.55beta02, November 22, 2015
+ * libpng version 1.2.55beta02, November 23, 2015
  *
  * Copyright (c) 1998-2015 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -12,7 +12,7 @@
  * Authors and maintainers:
  *  libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *  libpng versions 0.89, June 1996, through 0.96, May 1997: Andreas Dilger
- *  libpng versions 0.97, January 1998, through 1.2.55beta02, November 22, 2015: Glenn
+ *  libpng versions 0.97, January 1998, through 1.2.55beta02, November 23, 2015: Glenn
  *  See also "Contributing Authors", below.
  */
 
@@ -24,7 +24,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 22, 2015, are
+ * libpng versions 1.0.7, July 1, 2000, through 1.2.55beta02, November 23, 2015, are
  * Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
  * derived from libpng-1.0.6, and are distributed according to the same
  * disclaimer and license as libpng-1.0.6 with the following individuals
@@ -208,7 +208,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    November 22, 2015
+ *    November 23, 2015
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -272,7 +272,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.2.55beta02"
 #define PNG_HEADER_VERSION_STRING \
-   " libpng version 1.2.55beta02 - November 22, 2015\n"
+   " libpng version 1.2.55beta02 - November 23, 2015\n"
 
 #define PNG_LIBPNG_VER_SONUM   0
 #define PNG_LIBPNG_VER_DLLNUM  13
diff --git a/pngconf.h b/pngconf.h
index cb8a7af..6a72129 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.2.55beta02, November 22, 2015
+ * libpng version 1.2.55beta02, November 23, 2015
  *
  * Copyright (c) 1998-2015 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/scripts/README.txt b/scripts/README.txt
index d37a3ef..c62fc44 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.2.55beta02 - November 22, 2015
+Makefiles for  libpng version 1.2.55beta02 - November 23, 2015
 
  makefile.linux    =>  Linux/ELF makefile
                        (gcc, creates libpng12.so.0.1.2.55beta02)