diff --git a/ChangeLog b/ChangeLog
index 5591b0a..92d64f1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,12 +3,13 @@
to LongPixelPacket and made the default (65537,65537,65537), which
can never occur in the PNG image data. Previously the default was
(0,0,0) and black pixels would be rendered as as transparent when
- no tRNS chunk was present in the input.
+ no tRNS chunk was present in the input, which has caused problems
+ with some test cases since version 6.6.6-10.
* Improved the PNG_BUILD_PALETTE section to count opaque, transparent,
- and semitransparent pixels separately. Previously it wasn't possible
- to determine if there is a single fully-transparent color, to decide
- whether to write an RGBA or Gray-Alpha image or an RGB or Gray image
- with a tRNS chunk.
+ and semitransparent pixels separately. Previously it wasn't alwaysi
+ possible to determine if there is a single fully-transparent color,
+ to decide whether to write an RGBA or Gray-Alpha image or an RGB or
+ Gray image with a tRNS chunk.
2011-01-15 6.6.7-1 Cristy <quetzlzacatenango@image...>
* Do not reset image next / previous when detach argument is false for