How do I use dependencies? Are there notifications when a dependent task is complete?
How to Create dependencies?
Open the task that you'd like to add a dependent task.
Click on the plus sign next to Dependencies, as shown below, and you can either search or choose the task from lists/categories.

After a dependent task is added, the task can not be marked as resolved unless the dependent task is resolved. As shown in the screenshot below, there is a reminder saying Dependency required to resolve this requests and the "Resolved" option is greyed out.

Are there notifications when a dependent task is complete?
Yes, the assignee and follower of the task will get an email notification as below when all the dependent tasks are resolved.
All dependencies of #29 Product Descriptions have been finished. Now it is available for completion.
And the ID number of the dependent tasks will show as green and you will be able to modify the task status now.

Updated on: 28/03/2023
Thank you!