diff --git a/ANNOUNCE b/ANNOUNCE
index 56f29e9de..a2a63bd5d 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,5 +1,5 @@
 
-Libpng 1.6.11beta04 - April 13, 2014
+Libpng 1.6.11beta04 - April 21, 2014
 
 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.
@@ -47,12 +47,13 @@ Version 1.6.11beta03 [April 6, 2014]
   Fixed a typo in pngrutil.c, introduced in libpng-1.5.6, that interferes
     with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss).
 
-Version 1.6.11beta04 [April 13, 2014]
+Version 1.6.11beta04 [April 19, 2014]
   Made progressive reading of interlaced images consistent with the
-    behavior of the sequential reader and consistent with the manual. The
-    row_callback now receives the proper pass number and unexpanded rows,
-    when png_combine_row is not used or not built, by moving some code
-    out of the PNG_READ_INTERLACING_SUPPORTED blocks.
+    behavior of the sequential reader and consistent with the manual,
+    by moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks.
+    The row_callback now receives the proper pass number and unexpanded rows,
+    when png_combine_row is not used or not built,
+  Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/CHANGES b/CHANGES
index 849c8183c..912ea6d93 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4898,12 +4898,13 @@ Version 1.6.11beta03 [April 6, 2014]
     with "blocky" expansion of sub-8-bit interlaced PNG files (Eric Huss).
   Optionally use  __builtin_bswap16() in png_do_swap().
 
-Version 1.6.11beta04 [April 13, 2014]
+Version 1.6.11beta04 [April 19, 2014]
   Made progressive reading of interlaced images consistent with the
-    behavior of the sequential reader and consistent with the manual. The
-    row_callback now receives the proper pass number and unexpanded rows,
-    when png_combine_row is not used or not built, by moving some code
-    out of the PNG_READ_INTERLACING_SUPPORTED blocks.
+    behavior of the sequential reader and consistent with the manual,
+    by moving some code out of the PNG_READ_INTERLACING_SUPPORTED blocks.
+    The row_callback now receives the proper pass number and unexpanded rows,
+    when png_combine_row is not used or not built,
+  Allow PNG_sRGB_PROFILE_CHECKING = (-1) to mean no sRGB profile checking.
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/png.c b/png.c
index 9ea29af83..e322ec5fa 100644
--- a/png.c
+++ b/png.c
@@ -773,13 +773,13 @@ png_get_copyright(png_const_structrp png_ptr)
 #else
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
-     "libpng version 1.6.11beta04 - April 13, 2014" PNG_STRING_NEWLINE \
+     "libpng version 1.6.11beta04 - April 21, 2014" PNG_STRING_NEWLINE \
      "Copyright (c) 1998-2014 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 1.6.11beta04 - April 13, 2014\
+      return "libpng version 1.6.11beta04 - April 21, 2014\
       Copyright (c) 1998-2014 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
@@ -2136,7 +2136,7 @@ png_icc_check_tag_table(png_const_structrp png_ptr, png_colorspacerp colorspace,
    return 1; /* success, maybe with warnings */
 }
 
-#ifdef PNG_sRGB_SUPPORTED
+#if defined(PNG_sRGB_SUPPORTED) && PNG_sRGB_PROFILE_CHECKS >= 0
 /* Information about the known ICC sRGB profiles */
 static const struct
 {
@@ -2321,7 +2321,9 @@ png_icc_set_sRGB(png_const_structrp png_ptr,
    /* Is this profile one of the known ICC sRGB profiles?  If it is, just set
     * the sRGB information.
     */
+#if PNG_sRGB_PROFILE_CHECKS >= 0
    if (png_compare_ICC_profile_with_sRGB(png_ptr, profile, adler))
+#endif
       (void)png_colorspace_set_sRGB(png_ptr, colorspace,
          (int)/*already checked*/png_get_uint_32(profile+64));
 }