Fixed a security issue with temporary files on the filesystem cache on UNIX.
diff --git a/CHANGES b/CHANGES
index 6425de5..17e44ef 100644
--- a/CHANGES
+++ b/CHANGES
@@ -7,6 +7,11 @@
 
 - Prefix loader was not forwarding the locals properly to
   inner loaders.  This is now fixed.
+- Security issue: Changed the default folder for the filesystem cache to be
+  user specific and read and write protected on UNIX systems.  See `Debian bug
+  734747`_ for more information.
+
+.. _Debian bug 734747: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=734747
 
 Version 2.7.1
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