If you have followed some cards, you can use the Updates Inbox to see an overview of which followed cards have updated recently.
Show the Updates inbox now by opening the side bar and clicking "Updates". Then come back here to resume the tutorial.
The Updates Inbox functions like an email inbox. It shows all the cards you follow, ordered by how recently they either had a major update, or the host replied to your comment. Cards will be bold if they are unread.
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