diff --git a/libpng-1.4.0rc03.txt b/libpng-1.4.0rc03.txt
index fe7e0c1a5..22d9067a0 100644
--- a/libpng-1.4.0rc03.txt
+++ b/libpng-1.4.0rc03.txt
@@ -3003,7 +3003,13 @@ Support for global arrays was removed.
 
 Some obsolete/deprecated macros and functions have been removed.
 
-The obsolete, unused pnggccrd.c and pngvcrd.files were removed.
+Typecasted NULL definitions such as
+   #define png_voidp_NULL            (png_voidp)NULL
+were eliminated.  If you used these in your application, just use
+NULL instead.
+
+The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles
+%were removed.
 
 The PNG_1_0_X and PNG_1_2_X macros were eliminated.
 
diff --git a/libpng.3 b/libpng.3
index e3a8f5ebc..f231f70a3 100644
--- a/libpng.3
+++ b/libpng.3
@@ -3780,7 +3780,13 @@ Support for global arrays was removed.
 
 Some obsolete/deprecated macros and functions have been removed.
 
-The obsolete, unused pnggccrd.c and pngvcrd.files were removed.
+Typecasted NULL definitions such as
+   #define png_voidp_NULL            (png_voidp)NULL
+were eliminated.  If you used these in your application, just use
+NULL instead.
+
+The obsolete, unused pnggccrd.c and pngvcrd.c files and related makefiles
+%were removed.
 
 The PNG_1_0_X and PNG_1_2_X macros were eliminated.