Activity
Activity is the board-wide event stream for task changes and discussion.

Event stream
Section titled “Event stream”Events identify the actor, action, task, relative time, and event type. Comment events include the comment text; change events identify the updated task.
Filters
Section titled “Filters”Search narrows activity by text. All, Comments, and Changes switch the primary stream. The type summary filters by All, Status, Comments, Created, and Assigned with counts beside each type.
Summaries
Section titled “Summaries”Today’s Activity shows status changes, comments, tasks created, and completed work. Top Contributors totals actions for the current week.
Use task-level Activity when investigating one task and board Activity when reviewing the operating history of the whole board.
