Have no fear, the feature still exists! It’s just that the way to set dependencies has changed. Instead of that menu option, click the “Dependencies” button in the task toolbar; when you do, a new row will display in the task detail pane allowing you to set task(s) that are blocking this task and/or set task(s) that this task is blocking. Check out the screenshot here:
@Darryl_Garris can you create a test task and share a screenshot of what you see? This update if fully rolled out, and providing you’re working in a Premium/Biz/Enterprise Organisation, you should definitely see this option in your task pane details toolbar as seen below!
@Marie – Looks like I’m in the same boat as @Angela_Rose : Dependencies don’t show up in the task pane details toolbar (red box) but do appear below (green box).