diff --git a/CHANGES b/CHANGES
index 19e4cb1..6a3be10 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4740,6 +4740,12 @@
 Version 1.6.8rc01 [December 12, 2013]
   Tidied up pngfix inits and fixed pngtest no-write builds.
 
+Version 1.6.8rc02 [December 14, 2013]
+  Handle zero-length PLTE chunk or NULL palette with png_error()
+    instead of png_chunk_report(), which by default issues a warning
+    rather than an error, leading to later reading from a NULL pointer
+    (png_ptr->palette) in png_do_expand_palette().
+
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