GitZilla version 1.9 is out. This is a RC for version 2.0, which comes after this gets some wider testing. If you're using it and have a problem, use the issues page at github.
New features and changes:
User specific auth can now be mandatory, optional or denied altogether
User specific auth can now work with a cookie file (no need to store passwords - a problem when you have single-sign-on or common passwords)
Utility scripts to generate cookie files
More auth options for custom hooks. You can now pass a callback for pybugz initialization and go wild with it.
The update hook now checks for valid Bugzilla auth even if bug status checking is not enabled.