diff --git a/ANNOUNCE b/ANNOUNCE
index b9f68f8..5578534 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -364,6 +364,13 @@
     compiled without the CHECK option it defaulted to on, not off.
   Catch up with recent libpng16 changes; unknown handling and spelling
     corrections
+  Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
+    png_modifier are greater than that of png_store and as a consequence
+    compilation of pngvalid.c results in a warning about increased alignment
+    requirements because of the bare cast to (png_modifier*).  The code is
+    safe, because the pointer is known to point to a stack allocated
+    png_modifier, but this change avoids the warning.
+  Fixed some grammatical changes and updated the png chunks list.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 1c89c2c..7a5b339 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4653,6 +4653,13 @@
     compiled without the CHECK option it defaulted to on, not off.
   Catch up with recent libpng16 changes; unknown handling and spelling
     corrections
+  Avoid up-cast warnings in pngvalid.c. On ARM the alignment requirements of
+    png_modifier are greater than that of png_store and as a consequence
+    compilation of pngvalid.c results in a warning about increased alignment
+    requirements because of the bare cast to (png_modifier*).  The code is
+    safe, because the pointer is known to point to a stack allocated
+    png_modifier, but this change avoids the warning.
+  Fixed some grammatical changes and updated the png chunks list.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/LICENSE b/LICENSE
index f32a559..e6b447c 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 1.7.0beta19, September 16, 2013, are
+libpng versions 1.2.6, August 15, 2004, through 1.7.0beta19, September 30, 2013, are
 Copyright (c) 2004, 2006-2013 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
-September 16, 2013
+September 30, 2013
diff --git a/README b/README
index 52935f9..813a312 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-README for libpng version 1.7.0beta19 - September 16, 2013 (shared library 17.0)
+README for libpng version 1.7.0beta19 - September 30, 2013 (shared library 17.0)
 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 18bf6c9..960ed15 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 1.7.0beta19 - September 16, 2013
+ libpng version 1.7.0beta19 - September 30, 2013
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2013 Glenn Randers-Pehrson
@@ -11,7 +11,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.7.0beta19 - September 16, 2013
+ libpng versions 0.97, January 1998, through 1.7.0beta19 - September 30, 2013
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2013 Glenn Randers-Pehrson
 
@@ -5247,7 +5247,7 @@
 
 XVII. Y2K Compliance in libpng
 
-September 16, 2013
+September 30, 2013
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
diff --git a/libpng.3 b/libpng.3
index 28e1f32..9fd7544 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "September 16, 2013"
+.TH LIBPNG 3 "September 30, 2013"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta19
 .SH SYNOPSIS
@@ -494,7 +494,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.7.0beta19 - September 16, 2013
+ libpng version 1.7.0beta19 - September 30, 2013
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2013 Glenn Randers-Pehrson
@@ -505,7 +505,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.7.0beta19 - September 16, 2013
+ libpng versions 0.97, January 1998, through 1.7.0beta19 - September 30, 2013
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2013 Glenn Randers-Pehrson
 
@@ -5742,7 +5742,7 @@
 
 .SH XVII. Y2K Compliance in libpng
 
-September 16, 2013
+September 30, 2013
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -6012,7 +6012,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.7.0beta19 - September 16, 2013:
+Libpng version 1.7.0beta19 - September 30, 2013:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -6035,7 +6035,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.7.0beta19, September 16, 2013, are
+libpng versions 1.2.6, August 15, 2004, through 1.7.0beta19, September 30, 2013, are
 Copyright (c) 2004,2006-2007 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
@@ -6134,7 +6134,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-September 16, 2013
+September 30, 2013
 
 .\" end of man page
 
diff --git a/libpngpf.3 b/libpngpf.3
index bc85df9..ec74cca 100644
--- a/libpngpf.3
+++ b/libpngpf.3
@@ -1,4 +1,4 @@
-.TH LIBPNGPF 3 "September 16, 2013"
+.TH LIBPNGPF 3 "September 30, 2013"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.7.0beta19
 (private functions)
diff --git a/png.5 b/png.5
index cb99ac6..83ac888 100644
--- a/png.5
+++ b/png.5
@@ -1,4 +1,4 @@
-.TH PNG 5 "September 16, 2013"
+.TH PNG 5 "September 30, 2013"
 .SH NAME
 png \- Portable Network Graphics (PNG) format
 .SH DESCRIPTION
diff --git a/pngconf.h b/pngconf.h
index 2ceb959..52251e9 100644
--- a/pngconf.h
+++ b/pngconf.h
@@ -1,7 +1,7 @@
 
 /* pngconf.h - machine configurable file for libpng
  *
- * libpng version 1.7.0beta19 - September 16, 2013
+ * libpng version 1.7.0beta19 - September 30, 2013
  *
  * Copyright (c) 1998-2013 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
diff --git a/projects/vstudio/readme.txt b/projects/vstudio/readme.txt
index 39364ae..1ea010d 100644
--- a/projects/vstudio/readme.txt
+++ b/projects/vstudio/readme.txt
@@ -1,7 +1,7 @@
 
 VisualStudio instructions
 
-libpng version 1.7.0beta19 - September 16, 2013
+libpng version 1.7.0beta19 - September 30, 2013
 
 Copyright (c) 1998-2010 Glenn Randers-Pehrson
 
diff --git a/projects/vstudio/zlib.props b/projects/vstudio/zlib.props
index 08f9972..e58eb61 100644
--- a/projects/vstudio/zlib.props
+++ b/projects/vstudio/zlib.props
@@ -2,7 +2,7 @@
 <!--
  * zlib.props - location of zlib source
  *
- * libpng version 1.7.0beta19 - September 16, 2013
+ * libpng version 1.7.0beta19 - September 30, 2013
  *
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  *
diff --git a/scripts/README.txt b/scripts/README.txt
index 2eb9df4..0cfbcc7 100644
--- a/scripts/README.txt
+++ b/scripts/README.txt
@@ -1,5 +1,5 @@
 
-Makefiles for  libpng version 1.7.0beta19 - September 16, 2013
+Makefiles for  libpng version 1.7.0beta19 - September 30, 2013
 
 pnglibconf.h.prebuilt       =>  Stores configuration settings
  makefile.linux    =>  Linux/ELF makefile
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 832289d..5bea613 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -2,7 +2,7 @@
 
 /* pnglibconf.h - library build configuration */
 
-/* Libpng version 1.7.0beta19 - September 16, 2013 */
+/* Libpng version 1.7.0beta19 - September 30, 2013 */
 
 /* Copyright (c) 1998-2013 Glenn Randers-Pehrson */