Keep track of tickets the fix for which it may make sense to backport to a bugfix-only release.  Only pure fixes should be backported.
 
 * #4503 - This is a minor bug fix for handling of xmlns namespaces including spaces (legal) in Words' XMPP support.  It's a minor change to some simple string parsing code.
 * #4469 - This is a minor security fix to cause Conch to generate better keys.  It replaces a use of PyCrypto with an internal function and adds better tests for the code in question.