The updates section of tasks must state which items get added as successors and predecessors!!! Big reason is because if you make a date change, things often get dropped or removed - god forbid you accidentally clear the dates, you lose everything, and there is no history to look back on. This is a huge miss in my opinion.
Plus if it showed this, it would also be nice if when other predecessor and successor tasks, dates shift, if that was some how reflected in the updates section. It would give you alot more clarify into how dates have changed.