diff --git a/ANNOUNCE b/ANNOUNCE
index 440df0e..837992f 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.5.6beta06 - October 13, 2011
+Libpng 1.5.6beta06 - October 14, 2011
 
 This is not intended to be a public release.  It will be replaced
 within a few weeks by a public version or by another test version.
@@ -70,9 +70,8 @@
     previously possible because the png_struct buffer was always misaligned.
   Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01.
 
-Version 1.5.6beta06 [October 13, 2011]
+Version 1.5.6beta06 [October 14, 2011]
   Removed two redundant tests for unitialized row.
-  Added png_get_compression_buffer() API.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net:
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 0faff1e..70a5768 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3631,9 +3631,8 @@
     previously possible because the png_struct buffer was always misaligned.
   Fixed bug in png_write_chunk_header() debug print, introduced in 1.5.6beta01.
 
-Version 1.5.6beta06 [October 13, 2011]
+Version 1.5.6beta06 [October 14, 2011]
   Removed two redundant tests for unitialized row.
-  Added png_get_compression_buffer() API.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/libpng-manual.txt b/libpng-manual.txt
index fce0be1..0529f89 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 1.5.6beta06 - October 13, 2011
+ libpng version 1.5.6beta06 - October 14, 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 1.5.6beta06 - October 13, 2011
+ libpng versions 0.97, January 1998, through 1.5.6beta06 - October 14, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -3692,13 +3692,6 @@
     png_set_text_compression_method(png_ptr, method);
     #endif
 
-As of libpng version 1.5.6, an API became available for
-retrieving a pointer to the compression buffer:
-
-#if PNG_GET_COMPRESSION_BUFFER_SUPPORTED
-    png_bytep buffer = png_get_compression_buffer(png_ptr);
-#endif
-
 Controlling row filtering
 
 If you want to control whether libpng uses filtering or not, which
@@ -4570,7 +4563,7 @@
 
 XIV. Y2K Compliance in libpng
 
-October 13, 2011
+October 14, 2011
 
 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 9e8da19..682ecda 100644
--- a/libpng.3
+++ b/libpng.3
@@ -1,4 +1,4 @@
-.TH LIBPNG 3 "October 13, 2011"
+.TH LIBPNG 3 "October 14, 2011"
 .SH NAME
 libpng \- Portable Network Graphics (PNG) Reference Library 1.5.6beta06
 .SH SYNOPSIS
@@ -154,10 +154,6 @@
 
 \fI\fB
 
-\fBpng_bytep png_get_compression_buffer (png_const_structp \fIpng_ptr\fP\fB);\fP
-
-\fI\fB
-
 \fBpng_uint_32 png_get_compression_buffer_size (png_const_structp \fIpng_ptr\fP\fB);\fP
 
 \fI\fB
@@ -981,7 +977,7 @@
 .SH LIBPNG.TXT
 libpng-manual.txt - A description on how to use and modify libpng
 
- libpng version 1.5.6beta06 - October 13, 2011
+ libpng version 1.5.6beta06 - October 14, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
@@ -992,7 +988,7 @@
 
  Based on:
 
- libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011
+ libpng versions 0.97, January 1998, through 1.5.6beta06 - October 14, 2011
  Updated and distributed by Glenn Randers-Pehrson
  Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
@@ -4674,13 +4670,6 @@
     png_set_text_compression_method(png_ptr, method);
     #endif
 
-As of libpng version 1.5.6, an API became available for
-retrieving a pointer to the compression buffer:
-
-#if PNG_GET_COMPRESSION_BUFFER_SUPPORTED
-    png_bytep buffer = png_get_compression_buffer(png_ptr);
-#endif
-
 .SS Controlling row filtering
 
 If you want to control whether libpng uses filtering or not, which
@@ -5552,7 +5541,7 @@
 
 .SH XIV. Y2K Compliance in libpng
 
-October 13, 2011
+October 14, 2011
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
@@ -5814,7 +5803,7 @@
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.5.6beta06 - October 13, 2011:
+Libpng version 1.5.6beta06 - October 14, 2011:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net).
 
@@ -5837,7 +5826,7 @@
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 13, 2011, are
+libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 14, 2011, 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
@@ -5936,7 +5925,7 @@
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-October 13, 2011
+October 14, 2011
 
 .\" end of man page
 
diff --git a/png.h b/png.h
index fed4205..2969e37 100644
--- a/png.h
+++ b/png.h
@@ -1,7 +1,7 @@
 
 /* png.h - header file for PNG reference library
  *
- * libpng version 1.5.6beta06 - October 13, 2011
+ * libpng version 1.5.6beta06 - October 14, 2011
  * Copyright (c) 1998-2011 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -11,7 +11,7 @@
  * Authors and maintainers:
  *   libpng versions 0.71, May 1995, through 0.88, January 1996: Guy Schalnat
  *   libpng versions 0.89c, June 1996, through 0.96, May 1997: Andreas Dilger
- *   libpng versions 0.97, January 1998, through 1.5.6beta06 - October 13, 2011: Glenn
+ *   libpng versions 0.97, January 1998, through 1.5.6beta06 - October 14, 2011: Glenn
  *   See also "Contributing Authors", below.
  *
  * Note about libpng version numbers:
@@ -192,7 +192,7 @@
  *
  * This code is released under the libpng license.
  *
- * libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 13, 2011, are
+ * libpng versions 1.2.6, August 15, 2004, through 1.5.6beta06, October 14, 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:
@@ -304,7 +304,7 @@
  * Y2K compliance in libpng:
  * =========================
  *
- *    October 13, 2011
+ *    October 14, 2011
  *
  *    Since the PNG Development group is an ad-hoc body, we can't make
  *    an official declaration.
@@ -367,7 +367,7 @@
 /* Version information for png.h - this should match the version in png.c */
 #define PNG_LIBPNG_VER_STRING "1.5.6beta06"
 #define PNG_HEADER_VERSION_STRING \
-     " libpng version 1.5.6beta06 - October 13, 2011\n"
+     " libpng version 1.5.6beta06 - October 14, 2011\n"
 
 #define PNG_LIBPNG_VER_SONUM   15
 #define PNG_LIBPNG_VER_DLLNUM  15
@@ -995,12 +995,6 @@
 PNG_EXPORT(7, void, png_set_compression_buffer_size, (png_structp png_ptr,
     png_size_t size));
 
-#ifdef PNG_GET_COMPRESSION_BUFFER_SUPPORTED
-/* New in libpng-1.5.6 */
-PNG_EXPORT(234, png_bytep, png_get_compression_buffer, (png_const_structp
-    png_ptr));
-#endif
-
 /* Moved from pngconf.h in 1.4.0 and modified to ensure setjmp/longjmp
  * match up.
  */
@@ -2623,7 +2617,7 @@
  * scripts/symbols.def as well.
  */
 #ifdef PNG_EXPORT_LAST_ORDINAL
-  PNG_EXPORT_LAST_ORDINAL(234);
+  PNG_EXPORT_LAST_ORDINAL(233);
 #endif
 
 #ifdef __cplusplus
diff --git a/pngget.c b/pngget.c
index fa379c2..4f20a67 100644
--- a/pngget.c
+++ b/pngget.c
@@ -1068,16 +1068,6 @@
    return (png_ptr ? png_ptr->zbuf_size : 0);
 }
 
-#ifdef PNG_GET_COMPRESSION_BUFFER_SUPPORTED
-/* New in libpng-1.5.6 */
-png_bytep PNGAPI
-png_get_compression_buffer(png_const_structp png_ptr)
-{
-   return (png_ptr ? png_ptr->zbuf : 0);
-}
-#endif
-
-
 #ifdef PNG_SET_USER_LIMITS_SUPPORTED
 /* These functions were added to libpng 1.2.6 and were enabled
  * by default in libpng-1.4.0 */
diff --git a/scripts/pnglibconf.dfa b/scripts/pnglibconf.dfa
index 311ab47..07b7f69 100644
--- a/scripts/pnglibconf.dfa
+++ b/scripts/pnglibconf.dfa
@@ -557,9 +557,6 @@
 
 option WRITE_OPTIMIZE_CMF requires WRITE
 
-# Added at libpng-1.5.6
-option GET_COMPRESSION_BUFFER
-
 option READ_COMPRESSED_TEXT disabled
 option READ_iCCP enables READ_COMPRESSED_TEXT
 option READ_iTXt enables READ_COMPRESSED_TEXT
diff --git a/scripts/pnglibconf.h.prebuilt b/scripts/pnglibconf.h.prebuilt
index 108f789..8022a5a 100644
--- a/scripts/pnglibconf.h.prebuilt
+++ b/scripts/pnglibconf.h.prebuilt
@@ -55,7 +55,6 @@
 #define PNG_FLOATING_ARITHMETIC_SUPPORTED
 #define PNG_FLOATING_POINT_SUPPORTED
 #define PNG_gAMA_SUPPORTED
-#define PNG_GET_COMPRESSION_BUFFER_SUPPORTED
 #define PNG_HANDLE_AS_UNKNOWN_SUPPORTED
 #define PNG_hIST_SUPPORTED
 #define PNG_iCCP_SUPPORTED
diff --git a/scripts/symbols.def b/scripts/symbols.def
index 5a7e23f..fafffaf 100644
--- a/scripts/symbols.def
+++ b/scripts/symbols.def
@@ -239,4 +239,3 @@
  png_get_cHRM_XYZ_fixed @231
  png_set_cHRM_XYZ @232
  png_set_cHRM_XYZ_fixed @233
- png_get_compression_buffer @234