====================
- Add dependency on ``zope.thread`` to setup.py; without it, the tests were
failing.
- Backport a fix made by Albertas Agejevas to the 3.4 branch. He
fixed a bug in DecoratedSecurityCheckerDescriptor which made
security-wrapping location proxied exception instances throw
exceptions on Python 2.5. See
https://bugs.launchpad.net/zope3/+bug/251848