Workfront only displays the last 90 days of update history in a task, issue, or project. My team was using Workfront as an email replacement. This rendered it useless and seems like such an unnecessary "feature". One of the greatest features of Workfront is the ability to go back and see what happened on a task a year or more later. See what sorts of decisions were made at the time for example.
Creating a report of note text is NOT a solution. For one it loses the hierarchy of the note replies, and it is clunky. It is stunning to me that Workfront functions this way.