Content Edition
Each time a content is modified in a community or a conversation, an event will be displayed in the timeline, so that you can track latest content updates (Post, Idea, Question, Wiki).
Mention
If you @mention yourself in a 3DSwym content (Post, Idea, Question/answer, Wiki page), you will now receive a notification (even by mail depending on your 3DNotificaiton setting). You will also be notified for messages.
Also available when mentioning yourself in comments, integrated by others apps (3DDashboard, 3DDrive, Collaborative Task, ...)