Why has CollabNet combined mailing lists and discussion forum tools in version 5.0 of CEE?

Mailing lists existed outside the protection of CEE's project permissions system and they have significant functionality overlap with discussion forums. We wanted to merge these similar tools so that the users of each would have a single discussion capability with the best features of both products.

• What about bookmarks to existing messages?
  Existing message URLs will continue to work to access migrated messages from the archive. These messages will also have new format URLs as will all new message postings.
• What will happen to my existing mailing list and discussion forum archives?
  When you migrate to CEE5.x all existing messages in both of these tools will be migrated into the new discussion service.