[libpng16] Bump version to 1.6.0beta26
diff --git a/CHANGES b/CHANGES
index a08218d..701f7cb 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4144,6 +4144,8 @@
     provide a list of chunks to be processed instead of a list of chunks to
     ignore.  Revised contrib/gregbook/readpng2.c accordingly.
 
+Version 1.6.0beta26 [June 16, 2012]
+
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