The Office Connector has the ability to keep track of whether your documents currently contain either change tracking or comments. This ability, if enabled by your administrator, works automatically and allows you to see at a glance the status of changes and comments. For example, this can be shown in the search results like this:
This supports a collaborative process whereby other users can add changes or comments into your document, and you will know at a glance that they exist and need to be incorporated in your next update. You could use this as a way to prevent documents from being released that still have unincorporated changes or comments.
This capability is supported by the MS Office applications as follows: