the following changes have been pushed to bugzilla.mozilla.org:
-  Add “Bugzilla@Mozilla” to the From header, so email clients don’t just display “email@example.com”
-  add support for support.mozilla.org links to see_also
-  Allow everyone to make bugs security-sensitive retroactively
-  users are unable to log in if their password needs to be re-encrypted and their password does not match the current complexity rule
note: 1010751 changes the “from” header in email bugzilla.mozilla.org sends from:
From: "Bugzilla@Mozilla" <firstname.lastname@example.org>
it’s possible this change may impact mail filters which current perform an exact match on the from field.
discuss these changes on mozilla.tools.bmo.