diff --git a/Doc/whatsnew/whatsnew25.tex b/Doc/whatsnew/whatsnew25.tex
index e1bec2082ec..261f65a4c4b 100644
--- a/Doc/whatsnew/whatsnew25.tex
+++ b/Doc/whatsnew/whatsnew25.tex
@@ -1513,6 +1513,12 @@ Brandl.)
       (Contributed by Skip Montanaro.)
 % Patch 1120353
 
+\item The \module{zlib} module's \class{Compress} and \class{Decompress}
+objects now support a \method{copy()} method that makes a copy of the 
+object's internal state and returns a new 
+\class{Compress} or \class{Decompress} object. 
+(Contributed by Chris AtLee.)
+% Patch 1435422
 
 \end{itemize}