Version 2.1 of the quiz module has been released.
This fix includes several minor bug fixes. No security fixes, features, or api changes were made for this release.
To find out more, head over to the project page:
http://drupal.org/project/quiz
If you are running 6.x-2.0 or an earlier 6.x version, you are advised to upgrade to this version to benefit from the stability improvements.
Where are we?
Right now, Quiz 6.x-2.x is in maintenance mode. Bugs and security issues are addressed, but no new features are added.
Quiz 6.x-3.x is the current development release. The following new features are currently being developed:
- Long answer (essay) question support.
- Support for post-quiz actions (Thanks to iLLin)
- Better reporting (Thanks to iLLin)
- Several API-level changes that may impact developers.
We will continue to work on the 3.x branch.
Contribute to 3.x: Make suggestions
A new feature to roll around in the 3.x development branch is support for Drupal 6 actions. With this new facility, you can configure quizzes to perform certain actions after a quiz is submitted.
Take a look at this thread where we are discussing what actions should be added to the module:
http://drupal.org/node/341296
And we are still discussing features that may be added to 3.x. Now is the time to make suggestions.

Comments
Permissions system
Another thing I should have mentioned: 6.x-3.x permissions are being re-vamped. Administrators should have finer-grained control over who can do what (create, update, delete, admin for each quiz and each quiz type). With the long-answer module, scoring permissions are added, too.
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