diff --git a/Doc/whatsnew/whatsnew25.tex b/Doc/whatsnew/whatsnew25.tex
index df7e23f..9d6932b 100644
--- a/Doc/whatsnew/whatsnew25.tex
+++ b/Doc/whatsnew/whatsnew25.tex
@@ -1378,6 +1378,11 @@
 (Contributed by Gregory K. Johnson.  Funding was provided by Google's
 2005 Summer of Code.)
 
+\item New module: the \module{msilib} module allows creating
+Microsoft Installer \file{.msi} files and CAB files.  Some support
+for reading the \file{.msi} database is also included.
+(Contributed by Martin von~L\"owis.)
+
 \item The \module{nis} module now supports accessing domains other
 than the system default domain by supplying a \var{domain} argument to
 the \function{nis.match()} and \function{nis.maps()} functions.