When the scope of a PBI changes, everyone affected must be able to see what changed, why it changed, and who agreed to it.
It’s common to discover extra work once implementation starts. That’s fine… silent scope changes are not.
If you realize an additional task should be part of an existing PBI:
✅ Figure: Good example - New requirement has been added to the existing Acceptance Criteria
✅ Figure: Good example - Comment left to inform about the change
Tip: GitHub makes changes easy to spot by showing an edit history for issues and comments, including a diff view, who made the change, and when.