diff --git a/ANNOUNCE b/ANNOUNCE
index d15a0f63f..d2cd717fc 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -74,7 +74,7 @@ Version 1.6.19beta03 [September 25, 2015]
     UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More
     tests contain the --strict option to detect warnings and the
     pngvalid-standard test has been corrected so that it does not
-    turn on progresive-read. There is a separate test which does
+    turn on progressive-read. There is a separate test which does
     that. (John Bowler)
   Also made some signed/unsigned fixes.
   Make pngstest error limits version specific. Splitting the machine
@@ -83,6 +83,14 @@ Version 1.6.19beta03 [September 25, 2015]
     slightly different error limits this simplifies maintenance. The
     makepngs.sh script has also been updated to more accurately reflect
     current problems in libpng 1.7 (John Bowler).
+  Incorporated new test PNG files into make check.  tests/pngstest-*
+    are changed so that the new test files are divided into 8 groups by
+    gamma and alpha channel.  These tests have considerably better code
+    and pixel-value coverage than contrib/pngsuite; however,coverage is
+    still incomplete (John Bowler).
+  Removed the '--strict' in 1.6 because of the double-gamma-correction
+    warning, updated pngstest-errors.h for the errors detected with the
+    new contrib/testspngs PNG test files (John Bowler).
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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diff --git a/CHANGES b/CHANGES
index ef6ce394a..6aab0d49a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5357,7 +5357,7 @@ Version 1.6.19beta03 [September 25, 2015]
     UNKNOWN_CHUNKS; a bug revealed by changes in libpng 1.7. More
     tests contain the --strict option to detect warnings and the
     pngvalid-standard test has been corrected so that it does not
-    turn on progresive-read. There is a separate test which does
+    turn on progressive-read. There is a separate test which does
     that. (John Bowler)
   Also made some signed/unsigned fixes.
   Make pngstest error limits version specific. Splitting the machine
@@ -5366,6 +5366,14 @@ Version 1.6.19beta03 [September 25, 2015]
     slightly different error limits this simplifies maintenance. The
     makepngs.sh script has also been updated to more accurately reflect
     current problems in libpng 1.7 (John Bowler).
+  Incorporated new test PNG files into make check.  tests/pngstest-*
+    are changed so that the new test files are divided into 8 groups by
+    gamma and alpha channel.  These tests have considerably better code
+    and pixel-value coverage than contrib/pngsuite; however,coverage is
+    still incomplete (John Bowler).
+  Removed the '--strict' in 1.6 because of the double-gamma-correction
+    warning, updated pngstest-errors.h for the errors detected with the
+    new contrib/testspngs PNG test files (John Bowler).
 
 Send comments/corrections/commendations to png-mng-implement at lists.sf.net
 (subscription required; visit
diff --git a/contrib/README.txt b/contrib/README.txt
index bcd433d35..97963c6d5 100644
--- a/contrib/README.txt
+++ b/contrib/README.txt
@@ -1,4 +1,5 @@
 
 This "contrib" directory contains contributions which are not necessarily under
 the libpng license, although all are open source.  They are not part of
-libpng proper and are not used for building the library.
+libpng proper and are not used for building the library, although some are used
+for testing the library via "make check".
diff --git a/contrib/libtests/pngimage.c b/contrib/libtests/pngimage.c
index 8375c13f6..e69e7cb10 100644
--- a/contrib/libtests/pngimage.c
+++ b/contrib/libtests/pngimage.c
@@ -2,7 +2,7 @@
  *
  * Copyright (c) 2015 John Cunningham Bowler
  *
- * Last changed in libpng 1.6.18 [(PENDING RELEASE)]
+ * Last changed in libpng 1.6.19 [(PENDING RELEASE)]
  *
  * This code is released under the libpng license.
  * For conditions of distribution and use, see the disclaimer