JIRA allows to express dependencies between issues by adding links (by default, "depends on"/"blocks"). On the agile boards, these dependencies can only be seeen when selecting a specific issue and scrolling to the linked issues section.

As a developer choosing an issue to work on the Kanban or Scrum boards,
I would like to have these dependencies visualized on the issue cards
so that I can make a more informed choice and have a reduced risk of wasting time by choosing a "not yet workable" issue.

As a product owner ranking issues on the Kanban or Scrum boards,
I also would like to have the dependencies visualized on the issue cards
so that I don't inadvertently rank issues the wrong way around.

The concrete link types to count as "blocking" should ideally be configurable; practically, the standard "depends on" type could also suffice.

Suggestions for this visualization:

• arrows drawn between issues with dependencies,
• icon or a different (darker) card color for issues blocked by other open issues,
• a list of blocking issue numbers (with links) on the cards.