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- Changes for wiki markup users
- Built in page layouts (column/section)
- Discover what's "popular" from the Dashboard
- Notification of comments, replies, assigned tasks. Can watch conversations
- Track your working using the task list creator
- Excerpt Include macro across spaces
- Selectable page layouts from the editor
- Social networking features (e.g.likes, status updated, sharing)
Administrator goodies
- Automatically notify users of new accounts (4.3)