TIP: If a red circle with a number over the system message icon appears in the upper right of any page in the hub interface, an unread system message is available to read. In some cases, this can be a platform update:
In this case, you can skip the step of manually checking in Settings. Instead, select the message icon, then select the Available to download link. (Or select dismiss to ignore the notification for this available update.)
NOTE: It is not mandatory that you update your hub, though it is recommended for new features and fixes. The choice—if and when—is yours alone. If you choose to update, you can view the release notes in the update window or at a later time by visiting the Release Notes documentation.