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In your task list on Trello can you mark one card as a dependent on another card? For example, you can't put the tree in the ground (task 2) until you've dug the hole (task 1).

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I don't think you can currently but it would be nice to be able to have this. In programming I have classes that are dependent on others, and they cannot be completed until the other is as well. I guess almost inheriting or sub classing would be cool to be added in Trello – ComputerLocus May 27 '12 at 14:18
possible duplicate of How do you handle dependencies between cards with Trello? – Jacob Jan Tuinstra Jun 22 '13 at 12:55
up vote 6 down vote accepted

We've recently moved the Dependencies Between Cards feature to the main Trello board. That card will be forum for further discussion of supporting this use case.

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A year and a half have since passed. What is the current state of development? Thanks! – dotancohen Jan 3 '14 at 1:38

This isn't a formal way to do this, but you could use some combination of vertical position, comments, and description to achieve the same effect.

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Trello Card Dependencies Chrome Extension.

We wrote this to help solve the problem for us and then made it free.

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