When a task is delayed and then clashes with a dependent task, you currently only notice this when manually checking for red arrows in the timeline view. It would be really helpful if the owners of the affected tasks got an alert upon a change in timeline/due date that generates a clash.
We are working on a large number of projects with many different assignees in parallel, so it is easy to miss if someone changes the expected end date of a task. Having everyone follow all possibly relevant tasks is not a good fix for us, as it would spam the inboxes with lots of unrelevant updates.
In addition, it would be great if you could add an advanced warning for selected upcoming due dates. E.g. automatically sending the task owner a notification 1 week before a specific task is due.