diff --git a/CHANGES b/CHANGES
index f1e5a73..476cff6 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3201,7 +3201,7 @@
     benefit of the user transform callback.
   Added png_process_data_pause and png_process_data_skip for the benefit of
     progressive readers that need to stop data processing or want to optimize
-    skipping of unread data (e.g. if the reader marks a chunk to be skipped.)
+    skipping of unread data (e.g., if the reader marks a chunk to be skipped.)
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/LICENSE b/LICENSE
index bb99caa..8be6597 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,7 +10,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.1beta08, January 22, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.1beta08, January 23, 2011, are
 Copyright (c) 2004, 2006-2011 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 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-January 22, 2011
+January 23, 2011
diff --git a/README b/README
index 80f5733..3dccfde 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.5.1beta08 - January 22, 2011 (shared library 15.0)
+README for libpng version 1.5.1beta08 - January 23, 2011 (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/libpng-manual.txt b/libpng-manual.txt
index 3caff8f..9239dbb 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -1,6 +1,6 @@
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.1beta08 - January 22, 2011
+ libpng version 1.5.1beta08 - January 23, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.1beta08 - January 22, 2011
+ libpng versions 0.97, January 1998, through 1.5.1beta08 - January 23, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -4077,7 +4077,7 @@
 
 XIV. Y2K Compliance in libpng
 
-January 22, 2011
+January 23, 2011
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
diff --git a/libpngpf.3 b/libpngpf.3
index 59d7776..d98dedd 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "January 22, 2011"
+.TH LIBPNGPF 3 "January 23, 2011"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.1beta08
 (private functions)
diff --git a/png.5 b/png.5
index e038db5..847d2d9 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "January 22, 2011"
+.TH PNG 5 "January 23, 2011"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 303974e..87a3b99 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.5.1beta08 - January 22, 2011
+libpng version 1.5.1beta08 - January 23, 2011
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 79df0e7..fd8e3e7 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.5.1beta08 - January 22, 2011
+ * libpng version 1.5.1beta08 - January 23, 2011
  *
  * Copyright (c) 1998-2010 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index 27e010c..37aef86 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.5.1beta08 - January 22, 2011
+Makefiles for  libpng version 1.5.1beta08 - January 23, 2011
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile