This new release provides some major enhancements based on recent experience we had helping customers:

1- Multiple CPU snapshots
Multiple CPU snapshots are now kept in the database and categorized based on the snapshot date.

2- Periodic snapshots
This feature is only available on 853 and takes advantage of this functionality http://www.openntf.org/internal/home.nsf/project.xsp?action=openDocument&name=Threads%20and%20Jobs.
It allows a background task to periodically take CPU and runtime memory snapshots.

A major rewrite also happened in the database to support these new features (separate Java project, use of managed beans...). But this is also opening the door for more future enhancements.