A new release of ATutor, a learning content management system, is out. I'd be curious if anyone has used this particular CMS. How was your experience with ATutor and would you recommend it? From ATutor.ca:

ATutor 1.5.3 has been released, with many new features. The most significant changes include the integration of the ACollab group functionality into ATutor, creating a *new group user level*, and development of a collection group level tools. ACollab users can now configure ATutor to provide most of the functionality ACollab had been providing. Another key feature added in this release is the *File Storage* utility, a personal file manager for students, groups, and instructors. It includes an *Assignment Drop Box* extension, where students can submit assignments, and instructors can manage them. is now available for review and testing. For a full list of new features see the ChangeLog. Visit the ATutor downloads page to get a copy. Or, visit the demo site to try the demo ATutor 1.5.3.